Harnawa Insulations Private Limited

Insulation Kraft Paper is a high-purity, electrical-grade cellulose paper designed specifically for insulating transformers, motors, coils, cables, switchgear and electrical equipment. Manufactured from unbleached, long-fiber kraft pulp, it offers excellent mechanical strength, dielectric strength, flexibility and oil absorption, making it ideal for oil-filled transformers and motor winding insulation systems.

This paper is engineered to withstand the mechanical and electrical stresses present in HV/LV windings and maintains dimensional stability during heating, drying and oil impregnation. Insulation Kraft Paper is widely used for layer insulation, interturn insulation, core wrapping, transformer coil separation, conductor wrapping, and cable armoring.

Its uniform thickness, smooth surface and consistent insulation properties make it a preferred choice for transformer manufacturers, rewinding shops, cable industries and electrical panel builders. It performs reliably in Class A (105°C) insulating systems.

Key Features

• High-purity unbleached kraft insulation paper
• Excellent dielectric strength & electrical properties
• High mechanical toughness & tear resistance
• Smooth surface and uniform thickness
• Excellent transformer oil absorption
• Dimensional stability under heat & electrical stress
• Suitable for Class A insulation (105°C)
• Economical and widely used in electrical manufacturing

Applications

• Distribution & power transformer insulation
• HV/LV coil wrapping and interlayer insulation
• Motor winding insulation and slot liners
• Cable wrapping and electrical armoring
• Core wrapping and duct insulation
• Control panels, switchgear and electrical assemblies
• Capacitor insulation and industrial coils

Technical Range

• Material: 100% Cellulose Kraft Insulation Paper
• GSM Range: 60 GSM – 250 GSM
• Thickness: 0.10 mm – 0.50 mm
• Thermal Class: Class A – 105°C
• Form: Rolls / Sheets / Slitted Coils
• Color: Natural Kraft Brown

Advantages

• High mechanical strength for winding applications
• Excellent oil-absorbing characteristics
• Cost-effective insulation solution
• Reliable performance under electrical load

Insulation Pressboard is a high-density, high-purity cellulose board manufactured specifically for use in power transformers, distribution transformers, reactors, switchgear, HV/LV windings, and industrial electrical equipment. Made from 100% sulphate kraft insulating pulp, it is produced through multi-stage hot pressing to achieve exceptional mechanical strength, rigidity, dielectric performance and thermal stability.

Pressboard is the most critical solid insulation material used inside transformers. It is engineered to withstand high compressive loads, short-circuit forces, thermal stress, vibration and electrical stress while maintaining dimensional stability. It offers excellent oil absorption characteristics, ensuring complete impregnation during transformer assembly and long-term aging performance.

Insulation Pressboard is used to manufacture spacers, strips, blocks, cylinders, rings, barriers, washers, supports and structural insulation components. Its uniform density, smooth surface, tight tolerances and high mechanical strength make it a preferred choice for transformer OEMs and repair workshops.

Key Features

• High-density cellulose electrical pressboard
• Excellent dielectric strength under oil-immersed conditions
• High mechanical & compressive strength
• Superior oil absorption for transformer oil impregnation
• Smooth surface & uniform thickness for precision machining
• Dimensional stability under high temperature & electrical stress
• Suitable for Class A (105°C) insulation systems
• Compatible with mineral oil, ester oil & silicone fluids

Applications

• Power transformers & distribution transformers
• HV/LV coil ducts, barriers, spacers, blocks & rings
• Oil duct formation and structural support
• Winding channels, insulating partitions and cylinders
• Reactors, inductors and chokes
• Switchgear & industrial electrical equipment
• Die-cut or CNC-machined insulating components

Technical Range

• Material: 100% High-Purity Cellulose Electrical Pressboard
• Density: 0.95 – 1.30 g/cm³
• Thickness: 1 mm – 50 mm
• Thermal Class: Class A (105°C)
• Dielectric Strength: Very High (oil-immersed)
• Forms Available: Sheets, Blocks, Strips, Rings, CNC Parts
• Color: Natural Kraft Brown
• Standard Sheet Sizes:
– 1000 × 2000 mm
– 1220 × 2440 mm

Advantages

• Excellent mechanical & electrical reliability inside transformers
• High compressive strength to resist short-circuit forces
• Forms stable, oil-impregnated insulation systems
• Precision machinable for custom transformer components
• Long-term aging resistance under thermal & electrical stress

Bakelite Sheet (also known as Phenolic Laminated Sheet or Hylam Sheet) is a high-strength, rigid electrical insulation material manufactured using layers of kraft paper or cotton fabric impregnated with phenolic resin, and hot-pressed under high temperature and pressure. This process produces a dense, durable sheet with excellent mechanical strength, dielectric properties and thermal stability.

Bakelite Sheets are widely used in electrical, mechanical and industrial applications because of their excellent resistance to heat, impact, moisture, chemicals and oil. They maintain dimensional stability under load, do not deform easily and perform reliably in both high-voltage and mechanical environments.

Common applications include switchgear components, motor insulation parts, busbar supports, panel boards, jigs & fixtures, terminal plates, transformer parts, spacers, gears, and industrial machine components.

Depending on the grade, Bakelite Sheets are available as Paper-Based (PFCP) and Fabric-Based (PFCC), allowing use in electrical insulation or high mechanical load applications.

Key Features

• High mechanical strength and rigidity
• Excellent electrical insulation properties
• Heat-resistant (up to 150°C depending on grade)
• Resistant to moisture, chemicals, oils and solvents
• Dimensionally stable and impact resistant
• Good machinability – easy to drill, mill, cut and shape
• Suitable for both electrical and mechanical components
• Long service life and reliable industrial performance

Applications

• Electrical switchgear & control panels
• Busbar supports and terminal plates
• Motor and generator insulation parts
• Transformer blocks, spacers & supporting structures
• Gears, jigs, fixtures and machine parts
• Industrial equipment insulation
• Fuse bases, arc chutes and mechanical pads
• CNC machined components for high-strength applications

Technical Range

• Material: Phenolic Resin + Paper/Cotton Fabric Laminate
• Grades: PFCP (Paper-based), PFCC (Fabric-based)
• Thermal Class: Up to 150°C
• Dielectric Strength: Very high (insulation-grade)
• Standard Sheet Size: 1000 mm × 2000 mm / 1220 mm × 2440 mm
• Thickness Range: 1 mm – 50 mm
• Color: Brown / Black / Red
• Surface Finish: Smooth, glossy, or matte (as per grade)

Advantages

• Strong combination of electrical & mechanical performance
• Excellent durability in industrial and electrical installations
• Machinable for customized components
• Long-term reliability under continuous load

Insulation Paper is a high-quality electrical grade paper manufactured from 100% pure cellulose fibers, designed for use in motors, transformers, generators, switchgear, reactors and a wide range of electrical and electronic equipment. Widely used as interlayer insulation, coil wrapping, phase insulation, slot liners and transformer barrier insulation, it provides excellent dielectric strength, flexibility, thermal stability and oil absorption properties.

Electrical Insulation Paper is engineered for Class A (105°C) and Class B (130°C) applications depending on grade. It offers uniform thickness, smooth surface, high mechanical strength and excellent compatibility with transformer oil, varnishes, epoxy systems and impregnating resins.

Due to its strong tensile strength and stable dielectric performance, Insulation Paper is preferred by transformer manufacturers, motor rewinding shops, panel builders, and electrical equipment OEMs.

Key Features

• Electrical-grade pure cellulose insulation paper
• High dielectric strength & stable electrical properties
• Flexible, smooth surface & uniform thickness
• Excellent oil absorption for transformer applications
• Suitable for Class A/B thermal insulation
• Good mechanical strength & tear resistance
• Compatible with varnishes, epoxy & impregnating resins
• Reliable long-term performance in HV/LV windings

Applications

• Distribution & power transformers
• Motor winding insulation & slot liners
• HV/LV coil insulation and interlayer insulation
• Reactors, chokes, generators & alternators
• Switchgear and electrical panel insulation
• Winding reinforcement & coil wrapping
• Dry-type & oil-filled transformer insulation

Technical Range

• Material: 100% Cellulose Electrical Insulation Paper
• GSM Range: 50 GSM – 250 GSM
• Thickness: 0.10 mm – 0.50 mm
• Thermal Class: Class A (105°C) / Class B (130°C)
• Color: Natural Brown / Off-White
• Form: Roll / Sheet / Custom Slitted Sizes

Advantages

• Strong dielectric strength for HV equipment
• Smooth winding and excellent mechanical stability
• Long service life under thermal & electrical stress
• Cost-effective insulation for motors & transformers

Slot Insulation Paper is a high-performance electrical insulation material specifically designed for electric motor stator and rotor slot insulation, ensuring safe separation between copper windings and the steel core. These papers are manufactured from high-dielectric, heat-resistant, mechanically strong insulation laminates such as DMD, NMN (Nomex-Mylar-Nomex), F-Class Polyester Composites or Meta-Aramid Papers.

Slot Insulation Papers offer excellent dielectric strength, tear resistance, thermal stability, flexibility and durability. They withstand repeated mechanical stress during coil insertion and provide stable insulation performance across Class B (130°C), Class F (155°C) and Class H (180°C) thermal systems.

They are widely used in motors, pumps, appliances, compressors, traction motors, BLDC motors, submersible motors, EV motors and industrial machinery. Their smooth surface and structural stability enable easy coil insertion without fiber shedding or tearing.

Key Features

• High dielectric strength slot liners for motor stators & rotors
• Available in Class B, F & H insulation grades
• Smooth surface for easy coil insertion
• Flexible yet mechanically tough
• Excellent tear resistance & dimensional stability
• Withstands vibration, mechanical pressure & thermal cycling
• Compatible with varnish & resin impregnation
• Available in DMD, NMN, Aramid, Polyester laminates

Applications

• Stator slot insulation & slot liners
• Rotor slot insulation (where applicable)
• BLDC motors, induction motors, servo motors, EV motors
• Submersible pumps, compressors, fans, geyser motors
• Industrial motors & rewinding shops
• Armatures, chokes & high-frequency motors

Technical Range

• Material Options:

• DMD (Polyester + Fleece + Polyester), Class F

• NMN (Nomex + Polyester + Nomex), Class H

• Meta-Aramid Paper (Class H)

• Polyester Film Laminates

• Thermal Class: 130°C / 155°C / 180°C
• Thickness: 0.10 mm – 0.50 mm
• Dielectric Strength: High
• Form: Sheets / Rolls / Custom Slot Cutters
• Colors: White / Blue / Off-White depending on laminate

Advantages

• Ensures long-term insulation stability in motors
• Prevents short circuits due to core–coil contact
• Provides smooth coil insertion, reducing damage
• Widely accepted by motor OEMs and rewinders

Insulation Crepe Paper is a highly flexible, stretchable electrical insulation paper manufactured from 100% pure cellulose kraft paper, mechanically creped to provide superior elongation and conformability. It is widely used in power and distribution transformers, bushings, condenser bushings, cable insulation, conductor wrapping, and oil-filled electrical equipment.

The creping process enhances the stretch ratio of the paper (up to 150–300%), allowing it to wrap tightly around irregular shapes, sharp bends and small-radius conductors without tearing. This makes it ideal for insulating round or rectangular copper conductors, leads, jumpers, tap changers and transformer winding connections.

Insulation Crepe Paper exhibits excellent dielectric strength, flexibility, oil absorption, and mechanical strength. Once impregnated with transformer oil or insulating varnish, it becomes dimensionally stable and forms a durable insulation layer that withstands thermal shock, vibration and electrical stress.

Key Features

• High-flexibility creped cellulose insulation paper
• Excellent elongation for tight wrapping
• Strong dielectric strength and insulation stability
• High elongation ratio (150% to 300%)
• Smooth oil absorption for transformer use
• Ideal for irregular and complex shapes
• Compatible with transformer oil, resins & impregnating varnishes
• High tensile and tear strength

Applications

• Power & distribution transformer winding insulation
• Bushing insulation and condenser grading
• Copper conductor wrapping (round/rectangular)
• Tap changer insulation & lead wire insulation
• Cable insulation for LV and MV applications
• Oil-filled transformer internal insulation
• Jumper insulation and interconnect wrapping

Technical Range

• Material: 100% Cellulose Electrical Kraft Paper
• GSM Range: 60 GSM – 120 GSM
• Thickness: 0.10 mm – 0.30 mm
• Elongation: 150% – 300% (Creped)
• Thermal Class: Class A (105°C)
• Dielectric Strength: ≥ 8–10 kV/mm
• Form: Rolls / Bobbins / Tubes
• Color: Natural Kraft Brown

Advantages

• Excellent wrapping of sharp bends & irregular parts
• Superior oil impregnation & insulation performance
• High elongation prevents tearing during winding
• Widely used by transformer OEMs & service centers

Saturated Fleece Paper is a resin-impregnated polyester non-woven insulation material designed for electrical and thermal applications requiring excellent flexibility, mechanical strength and moderate heat resistance. The fleece base is carefully saturated with high-grade insulating resin, giving the material enhanced tensile strength, dielectric properties, dimensional stability and thermal endurance.

This material is widely used in motors, transformers, choke coils, reactors, EV motors, alternators, generators, appliance motors and industrial electrical assemblies. Saturated Fleece Paper performs exceptionally well as interlayer insulation, coil wrapping, slot insulation, phase insulation and binding material.

Due to its resin saturation, the paper becomes stronger, smoother and more durable compared to regular fleece. It resists moisture, varnishes, solvents and electrical stress, making it ideal for Class B (130°C) and Class F (155°C) insulation systems.

This material is available in rolls and slitted forms, making it suitable for OEMs and rewinding shops that require a combination of flexibility and strength.

Key Features

• Resin-saturated polyester non-woven insulation paper
• Excellent dielectric strength and stable electrical properties
• High flexibility + improved mechanical reinforcement
• Suitable for Class B & Class F insulation
• Good thermal aging performance
• Resistant to moisture, chemicals, oils and varnishes
• Smooth surface for easy winding & layering
• Ideal for motor, transformer and electrical coil insulation

Applications

• Motor winding & interlayer insulation
• Transformer coil wrapping & phase insulation
• Slot liners for small & medium motors
• Coil banding and structural reinforcement
• Chokes, inductors, solenoids & appliance motors
• EV motor & high-frequency motor insulation
• Armature insulation and binding applications

Technical Range

• Material: Resin-Saturated Polyester Fleece
• GSM Range: 80 GSM – 200 GSM
• Thickness: 0.10 mm – 0.40 mm
• Thermal Class: Class B (130°C) / Class F (155°C)
• Dielectric Strength: High
• Form: Rolls / Sheets / Slitted Coils
• Color: White / Off-White

Advantages

• Stronger and more stable than ordinary fleece
• Excellent for resin-rich and varnish-impregnated systems
• Provides durability under vibration & thermal load
• Flexible enough for complex coil geometries

Insulation Pressboard Spacer is a high-density electrical insulation material manufactured from 100% pure cellulose kraft pulp, engineered specifically for high-voltage transformer and power equipment applications. These spacers are used for mechanical support, spacing, oil circulation channels, structural reinforcement and dielectric insulation inside oil-filled transformers, reactors and electrical apparatus.

The pressboard spacers are manufactured using multi-stage hot pressing, resulting in a dimensionally stable, rigid, and mechanically strong product. They exhibit excellent compressive strength, moisture resistance, dielectric properties and oil absorption, making them ideal for long-term operation inside transformer oil.

Insulation Pressboard Spacers maintain their mechanical shape under heat, vibration, pressure and electrical stress, ensuring the stability of winding structures and preventing movement or deformation. Their moisture absorption and compatibility with transformer oil help create a uniform insulation system during oil impregnation and thermal aging.

Key Features

• High-density cellulose pressboard designed for transformers
• Excellent dielectric strength and electrical insulation
• High compressive and mechanical strength
• Dimensional stability under heat and electrical stress
• Excellent oil absorption and compatibility with transformer oil
• Smooth surface & uniform thickness for precision spacers
• Resistant to moisture, chemicals and aging
• Ideal for structural reinforcement in HV equipment

Applications

• Oil-filled power transformers
• Distribution transformers
• Dry-type transformers
• Coil spacers and winding supports
• Oil duct spacers & cooling channel creation
• HV insulation barriers and block supports
• Reactors, inductors, choke coils
• Electrical machinery insulation systems

Technical Range

• Material: 100% Cellulose Electrical Pressboard
• Density: 0.95 – 1.30 g/cm³
• Thermal Class: Class A (105°C)
• Thickness: 2 mm – 50 mm (custom available)
• Dielectric Strength: High, oil-immersed
• Color: Natural Brown
• Type: Rigid Transformer Pressboard Spacer

Advantages

• Strong electrical & mechanical insulation
• Excellent dimensional stability inside transformers
• Compatible with all transformer oils
• Long-term reliability in HV equipment
• Used by major transformer OEMs and repair industries

Bakelite Sheet & Components are precision-engineered insulating parts manufactured from phenolic laminated sheets (paper-based PFCP or fabric-based PFCC), designed for electrical, mechanical and industrial applications requiring high strength, excellent insulation and dimensional stability. These components are fabricated through CNC machining, drilling, milling, cutting, and shaping to meet custom profiles used in motors, transformers, switchgear, control panels, machines and industrial assemblies.

Phenolic Laminated Bakelite Components provide outstanding heat resistance (up to 150°C), dielectric strength, rigidity, impact resistance, moisture resistance and chemical resistance. They do not deform under mechanical load or electrical stress, making them ideal for high-performance insulation structures.

These components are widely used to replace metal parts where insulation and lightweight strength are required. They are a preferred choice for OEM machinery manufacturers, electrical panel builders, transformer OEMs, motor repair workshops and industrial fabricators.

Key Features

• Custom-manufactured phenolic laminated insulating components
• Excellent electrical insulation & dielectric properties
• High mechanical strength and dimensional accuracy
• Heat-resistant up to 150°C depending on grade
• Precision machineable for CNC profiles & custom parts
• Good resistance to oil, chemicals, moisture & abrasion
• Stable under vibration, mechanical load and electrical stress
• Available in PFCP (paper) or PFCC (fabric) grade

Applications

• Transformer components (spacers, blocks, supports)
• Switchgear and control panel insulation parts
• Motor insulation components, terminal plates
• Busbar supports, gear wheels, jigs & fixtures
• CNC-machined industrial components
• Arc chutes, fuse bases, mechanical pads
• Structural insulation in electrical machines
• High-strength insulating hardware

Technical Range

• Material: Phenolic Resin + Laminated Paper / Fabric
• Grades Available: PFCP (Paper), PFCC (Fabric)
• Thermal Endurance: Up to 150°C
• Dielectric Strength: High (depending on grade)
• Thickness Range (Base Sheet): 1–50 mm
• Machining: CNC / Milling / Drilling / Shaping
• Surface: Smooth / Glossy / Matte
• Color Options: Brown, Black, Red

Advantages

• Custom shapes available for OEM applications
• High durability under thermal and mechanical load
• Lightweight but very strong structural insulation
• Cost-effective replacement for metal components
• Widely accepted by electrical & industrial OEMs

Diamond Dotted Paper (DDP) is a high-quality electrical insulation material manufactured using electrical-grade kraft paper coated with B-stage cured epoxy resin dots arranged in a diamond pattern. When heated during transformer coil drying or curing, these epoxy dots melt and firmly bond adjacent layers, forming a solid, rigid, and mechanically strong insulation structure.

DDP is widely used in power transformers, distribution transformers, reactors, HV/LV coils, layer insulation, interturn insulation and winding reinforcement. The unique diamond pattern ensures optimal bonding while maintaining flexibility during winding.

Once cured, the epoxy bonding prevents movement of windings under short-circuit forces, vibration or thermal expansion, ensuring long-term reliability and electrical stability inside oil-filled transformers.

Diamond Dotted Paper offers excellent dielectric strength, oil absorption capacity, mechanical rigidity, thermal aging resistance and high dimensional stability, making it an essential insulation material in modern transformer manufacturing.

Key Features

• Kraft paper coated with B-stage epoxy resin dots
• Strong bonding during transformer coil curing
• Prevents movement of windings under short-circuit stresses
• High dielectric strength and insulation stability
• Excellent compatibility with transformer oil
• Improved mechanical rigidity after curing
• Uniform dot coating ensures consistent bonding strength
• Effective in HV, LV coil insulation and layer insulation

Applications

• Power transformers & distribution transformers
• HV/LV coil insulation and interlayer insulation
• Interturn insulation and winding reinforcement
• Dry-type transformer coil bonding
• Oil-filled transformer core insulation
• Electrical machine insulation requiring rigid bonding
• Layer insulation for copper & aluminum conductors

Technical Range

• Base Material: Electrical Grade Kraft Paper
• Coating: B-stage Epoxy Resin Dots
• Thermal Class: Class A (105°C)
• Bonding Temperature: 90°C – 110°C
• Thickness: 0.10 mm – 0.50 mm
• Dielectric Strength: ≥ 10 kV/mm
• Dot Pattern: Diamond Pattern Resin Coating
• Color: Natural Brown with Resin Dots

Advantages

• Strong epoxy bonding after hot-pressing
• Prevents insulation displacement and coil deformation
• Ideal for long-life transformer performance
• High reliability in oil-filled environments
• Used by transformer OEMs globally

Diamond Dotted Insulation Paper (DDP) is a high-performance electrical insulation material used primarily in power transformers, distribution transformers, reactor coils, tap changer assemblies, HV/LV windings, interlayer insulation and spacer insulation. It is manufactured from premium-grade electrical kraft paper coated with B-stage thermosetting epoxy resin dots arranged in a precise diamond pattern.

During the transformer coil drying and hot-pressing process, these epoxy dots soften, flow and bond adjacent layers of paper firmly together. This creates a rigid, stable, vibration-resistant composite insulation layer, preventing the movement of windings under short-circuit forces and thermal expansion.

Diamond Dotted Insulation Paper is valued for its excellent dielectric strength, strong thermal aging resistance, consistent thickness, mechanical strength and oil compatibility. It performs reliably even under long-term thermal cycling, high voltage stress and oil-immersed conditions.

Key Features

• High-strength kraft paper with B-stage epoxy diamond coating
• Excellent bonding once heat-cured (90°C – 110°C)
• Prevents displacement and vibration of windings
• High dielectric strength for HV/LV coils
• Superior oil absorption and compatibility with transformer oil
• Strong thermal aging resistance
• Smooth surface for defect-free insulation
• Long-term electrical and mechanical reliability

Applications

• Layer insulation in transformer windings
• Interturn insulation for HV and LV coils
• Dry-type transformer insulation bonding
• Core & coil support insulation
• Interlayer insulation and tap lead insulation
• Reactors, inductors and power equipment
• Distribution transformer manufacturing and repair

Technical Range

• Base Material: Electrical Kraft Insulation Paper
• Coating: Epoxy/B-stage resin diamond dot pattern
• Thermal Class: Class A (105°C)
• Bonding Temperature: 90°C – 110°C
• GSM Range: 120 – 240 GSM
• Thickness: 0.10 mm – 0.50 mm
• Dielectric Strength: ≥ 10 kV/mm
• Color: Natural Kraft brown with visible resin dots

Advantages

• Superior bonding prevents winding deformation
• Highly reliable for high-voltage, oil-filled transformers
• Excellent mechanical stability and thermal endurance
• Ideal for OEM transformer manufacturers

Hylam Sheet is a high-strength electrical insulation and mechanical engineering laminate manufactured from layers of cellulose paper or cotton fabric impregnated with phenolic resin, cured under high pressure and temperature. Known for its durability, high dielectric strength and superior mechanical stability, Hylam Sheets are widely used in electrical panels, switchgear, motors, transformers, jigs, fixtures and industrial engineering applications.

Hylam Sheets exhibit exceptional resistance to heat, impact, moisture, chemicals, oils and environmental stress. They maintain dimensional stability even under heavy load, high voltage or continuous thermal exposure. Because of their reliability and machinability, Hylam Sheets are widely CNC-machined into components like spacers, terminal plates, busbar supports, arc chutes and mechanical parts.

Available in PFCP (Paper-Based) for electrical insulation and PFCC (Fabric-Based) for high mechanical load applications, Hylam Sheets are suitable for both electrical and mechanical industries.

Key Features

• High mechanical strength & rigidity
• Excellent dielectric insulation properties
• Heat resistance up to 150°C
• Moisture, oil, and chemical resistant
• Stable under electrical load and thermal cycling
• Easy to machine, drill, mill, and shape
• Available in paper & fabric phenolic grades
• Long life & dependable industrial performance

Applications

• Electrical switchgear and distribution boards
• Motor insulation components and terminal plates
• Transformer insulation blocks & spacers
• Busbar supports and arc chutes
• Jigs, fixtures, gears and mechanical parts
• Control panel boards & equipment bases
• CNC-machined industrial components
• Insulation in power equipment and heavy machinery

Technical Range

• Material: Phenolic Resin Laminated Paper/Fabric
• Grades: PFCP (Paper), PFCC (Fabric)
• Thermal Class: Up to 150°C
• Dielectric Strength: Very high
• Sheet Size: 1000×2000 mm / 1220×2440 mm
• Thickness: 1 mm – 50 mm
• Color Options: Brown / Black / Red
• Surface Finish: Smooth / Glossy / Matte

Advantages

• High strength-to-weight ratio
• Excellent durability under demanding conditions
• Reliable insulation for electrical machinery
• Suitable for machining custom components
• Industry-standard for electrical & mechanical OEMs

Amotfors Brown Kraft Paper is a high-purity, electrical-grade kraft insulation paper manufactured from long-fiber sulphate pulp. This paper is known globally for its premium quality, uniform density, excellent tensile strength and stable dielectric performance, making it a preferred insulation material for transformers, motors, cable wrapping and electrical equipment manufacturers.

Produced using advanced kraft pulping and refining processes, Amotfors Brown Kraft Paper exhibits excellent oil absorption, smooth surface finish, and high flexibility. It maintains mechanical integrity under heat, electrical stress and transformer oil immersion. Because of its consistent thickness and electrical reliability, it is widely used as interlayer insulation, core wrapping, conductor insulation, coil separation and phase insulation.

This paper conforms to electrical insulation standards and ensures long-term stability in Class A (105°C) thermal systems. Its strong mechanical properties also make it suitable for forming parts, wrapping conductors, slot liners, and barrier insulation in both oil-filled and dry-type electrical equipment.

Key Features

• High-purity cellulose kraft insulation paper
• Excellent dielectric strength & electrical stability
• Smooth, uniform surface and consistent thickness
• Excellent transformer oil absorption
• High mechanical strength and tear resistance
• Good thermal aging performance (Class A – 105°C)
• Suitable for all transformer oil types
• Flexible and easy to wind around coils and conductors

Applications

• Power & distribution transformer insulation
• Core wrapping and duct insulation
• HV/LV coil interlayer insulation
• Cable wrapping & conductor insulation
• Motor winding insulation & slot liners
• Dry-type transformer insulation barriers
• Capacitor insulation and electrical laminates

Technical Range

• Material: Long-Fiber Cellulose Kraft Paper
• GSM Range: 60 GSM – 250 GSM
• Thickness: 0.10 mm – 0.50 mm
• Thermal Class: Class A (105°C)
• Dielectric Strength: ≥ 8–10 kV/mm
• Form: Rolls / Sheets / Slitted Coils
• Color: Natural Brown (Amotfors Shade)

Advantages

• High-quality kraft paper used globally by OEMs
• Excellent oil compatibility and aging performance
• Stable mechanical & electrical properties
• Smooth winding and machining characteristics
• Reliable insulation for transformers & motors

Black Kraft Paper is a specially treated electrical insulation paper made from high-strength cellulose kraft fibers, uniformly dyed and processed to offer excellent dielectric strength, mechanical durability, and moisture resistance. The black coloration provides enhanced light-blocking properties and improves thermal stability, making it ideal for electrical, packaging and industrial insulation applications.

This paper is widely used in transformers, motors, cable industries, EV battery insulation, coil wrapping, slot liners, barrier insulation, busbar covering and electrical panel fabrication. Its smooth finish, uniform thickness and strong tensile strength make it suitable for precision electrical insulation requirements.

Black Kraft Paper performs reliably under Class A (105°C) thermal conditions, offering good oil compatibility, moderate heat resistance, and strong resistance to cracking or tearing during winding and shaping. It is commonly supplied in rolls, sheets and custom slit widths for OEM and industrial applications.

Key Features

• High-strength black dyed kraft insulation paper
• Excellent dielectric strength & mechanical toughness
• Smooth surface, consistent thickness & uniform density
• Good thermal & moisture resistance
• Compatible with electrical varnishes, oils & resins
• Easy to cut, slit, wrap & shape for insulation use
• Manufactured for Class A thermal insulation systems
• Widely used in transformers, motors & industrial equipment

Applications

• Transformer insulation & coil wrapping
• Slot liners in small motors & appliance motors
• Cable armoring & electrical harness insulation
• Busbar insulation & barrier separation
• EV battery and electronics insulation
• Control panels, switchgear & industrial electrical units
• Packaging, binding & industrial lamination

Technical Range

• Material: Dyed Electrical-Grade Kraft Paper
• GSM Range: 80 GSM – 200 GSM
• Thickness: 0.12 mm – 0.40 mm
• Color: Deep Black / Matte Black Finish
• Form: Rolls / Sheets / Slitted Coils
• Thermal Class: Class A – 105°C
• Core ID: 3 inch (76 mm)

Advantages

• Enhanced aesthetic & high-contrast insulation layer
• Strong mechanical & dielectric properties
• Economical and versatile for multiple industries
• Flexible for easy winding and shaping

PVC Insulation Paper is a flexible electrical insulation material made by laminating or coating polyvinyl chloride (PVC) onto insulating base paper. It is designed for applications requiring moisture resistance, electrical insulation, flexibility and durability. This material is widely used in panel boards, cable insulation, motor winding insulation, transformer wrapping, slot liners, coil separation and low-voltage insulation assemblies.

PVC-coated insulation paper provides excellent dielectric strength and withstands moderate heat, making it suitable for Class A (105°C) insulation systems. The PVC layer adds strong resistance against moisture, oil, chemicals, and abrasion, while the paper base gives flexibility and ease of handling.

Due to its combination of elasticity, toughness and electrical safety, PVC Insulation Paper is commonly used in consumer appliances, wiring harnesses, automotive applications, lighting equipment, motors, transformers and industrial electrical units.

Key Features

• PVC-coated electrical insulation paper
• Excellent dielectric strength and insulation properties
• Flexible, durable and easy to handle
• Strong resistance to moisture, chemicals, oil & abrasion
• Good thermal stability for Class A insulation
• Smooth surface and uniform coating
• Suitable for low-voltage and industrial insulation applications
• Available in rolls & custom slitted sizes

Applications

• Motor winding & slot insulation
• Transformer coil wrapping & interlayer insulation
• Cable insulation & electrical harnessing
• Appliance motors, fans, pumps & lighting equipment
• Panel boards, switchgear & electrical assemblies
• Control panel insulation and HV/LV separation
• Automotive & industrial wiring protection

Technical Range

• Material: PVC Coated Electrical Insulation Paper
• GSM Range: 80 GSM – 160 GSM
• Thickness: 0.15 mm – 0.35 mm
• Thermal Class: Class A – 105°C
• Dielectric Strength: High
• Form: Rolls / Sheets / Slitted Rolls
• Color: White / Yellow / Blue (as required)

Advantages

• Moisture-resistant electrical insulation
• Flexible & easy to wind around coils
• Economical for large-scale electrical applications
• Reliable dielectric protection for LV systems