Flexible Materials

Electrowind Converting Solutions offers precision converting services for a wide variety of flexible (thin, flat) materials. We specialize in converting electrical insulating materials and adhesive tapes while offering contract converting capabilities for a wide variety of flexible materials.

Insulating Papers

Material/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
Nomex® Aramid PaperClass R-220°CYellow-exceptional temperature resistance
-outstanding mechanical toughness
-inherent dielectric strength
-excellent flame resistance
-excellent chemical resistance
-oil-filled transformers
-dry-type transformers
-electric motors
-traction motors
-high voltage applications
-lighting ballasts
-mining equipment
-welding equipment
-communication and data centres
COPACO Rag PaperClass A-105°CGray-extremely high tensile strength, tear, burst and dielectric properties
-easy insertion and application
-excellent abrasion resistance
-easy to punch, form and crease
-slot cell liners in armatures
-slot cell liners and phase insulation in stators of fractional HP motors
-core and layer insulation in transformers
-washers, gaskets, shielding and barrier insulation
-power tools
-lighting ballasts
-appliances
-windshield wiper motors
-power window motors
Kraft PaperClass A-105°CBrown-high-strength
-excellent electrical properties
-pinhole-free structure
-can be dyed to various colours
-oil-filled transformers
-power and distribution transformers  
TufQUIN® Inorganic/Organic Hybrid PaperClass H-200°CNatural-physically tough
-cost-effective
-flexible
-conformable
-high tensile strength and excellent tear resistance
-dry-type transformers
-electric motors
-generators
-slot liners
-wedges
-phase insulation
-wire and cable wrap
-switchgear insulation
-spiral and convolute tubing
Crepe PaperClass A-105°CBrown-high elongation
-low dissipation factor
-elasticity and pliability
-suitable for high voltage bushings and instrument transformers
-joining and forming tapping leads
-wire wrapping
-shielded rings placed within end sections of power transformer winding
Fish Paper Vulcanized FibreClass A-105°CAvailable in various colours-high strength
-lightweight
-excellent electrical insulating properties
-flexible
-easy to fabricate
-resistant to heat and cold
-end laminations for electric motors
-oil-filled transformers
-washers
-electrical appliances
-gaskets
-fuse tubes
-circuit breakers
-railroad track insulation
-bushings for motor contacts
-electrical devices
-automotive parts
CeQUIN® Inorganic Insulating PaperClass R-220°CWhite-excellent thermal and dielectric stability
-high thermal conductivity
-long term voltage endurance
-low moisture absorption
-improved cut-through resistance
-easily impregnated
-compatible with commonly used impregnating varnishes and resins
-electrical insulation applications up to 220°C
-Class R-220 coil applications
-wire wrap in the manufacturing of 250°C rated appliance wiring material for use in high temperature, severe environments
-layer insulation in dry-type transformers
-interwinding insulation in strip-wound coils  

Insulating Laminates

Material/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
DM - (Dacron® -Mylar®) 2-Ply LaminateClass F-155°CBlue-economical
-tough
-excellent resistance to cut-through and edge tear
-electric motors
-generators
-transformers
-ground and wrapper insulation in dry-type transformers
-used in fractional and large rotating electrical equipment as slot, phase and end-turn insulation
-slot interlining insulation
-wedges
DMD - (Dacron® -Mylar® -Dacron®) 3-Ply LaminateClass F-155°CBlue-economical
-tough
-excellent electrical and mechanical properties
-excellent resistance to cut-through and edge tear
-easy processing on automatic machines due to smooth Dacron surface on both sides of material
-electric motors
-generators
-transformers
-ground and wrapper insulation in dry-type transformers
-used in fractional and large rotating electrical equipment as slot, phase and end-turn insulation
-slot interlining insulation
-wedges
NM – (Nomex®-Mylar®) 2-Ply LaminateClass F-155°CWhite-cost-effective
-thin
-high dielectric strength, tear, tensile and burst strength
-long-term thermal stability
-small electric motors
-slot liners, wedges and phase insulation in Class F motors and specialty Class B motors
-generators
-transformers
-ground and wrapper insulation in dry-type transformers
NMN – (Nomex®-Mylar®- Nomex®) 3-Ply LaminateClass H-180°CWhite-cost-effective
-motor manufacture and repair facilities like the ability to standardize on NMN and use one insulation material for all motors
-high dielectric strength
-good initial tear strength and tensile properties
-long-term thermal stability
-slot liners, wedges and phase insulation in Class H motors and generators as well as in large and specialty Class F motors
-hermetic applications
-typically used in cost-critical designs
-generators
-transformers
-ground and wrapper insulation in dry-type transformers
TF – (TufQUIN®-Mylar®) 2-Ply LaminateClass H-200°CNatural-excellent dielectric strength
-uniquely suited for motor/generator slot liner, wedge and phase insulation applications  
-dry-type transformers (ground and layer insulation)
-motors
-generators
-slot liner
-wedge
-phase insulation
-heavy-duty winding applications
-automatic insertion applications
TFT – (TufQUIN®-Mylar®- TufQUIN®) 3-Ply LaminateClass H-200°CNatural-excellent dielectric strength
-uniquely suited for motor/generator slot liner, wedge and phase insulation applications
-excellent for automatic insertion
-dry-type transformers (ground and layer insulation)
-motors
-generators
-slot liner
-wedge
-phase insulation
-heavy-duty winding applications
-automatic insertion applications
RM – (Rag-Mylar®) 2-Ply LaminateClass B-130°CGray-tough, affordable laminates for a wide variety of applications
-excellent resistance to cut-through and edge tear
-wide range of constructions to optimize mechanical and electrical designs
-motors
-generators
-transformers
-sub-fractional to the largest rotating electrical equipment as slot, phase and end-turn insulation
-ground and wrapper insulation in dry-type transformers
-formed and fabricated parts
-power tools
-small motor applications
-RM 2-ply is popular for many power tool and other small motor applications
RMR – (Rag-Mylar®-Rag) 3-Ply LaminateClass B-130°CGray-tough, affordable laminates for a wide variety of applications
-excellent resistance to cut-through and edge tear
-wide range of constructions to optimize mechanical and electrical designs
-motors
-generators
-transformers
-sub-fractional to the largest rotating electrical equipment as slot, phase and end-turn insulation
-ground and wrapper insulation in dry-type transformers
-formed and fabricated parts
NK – (Nomex®-Kapton®) 2-Ply LaminateClass R-220°CBeige-excellent for high-temperature applications
-will not delaminate or blister at high temperatures
-high dielectric strength
-good initial tear strength and tensile properties
-long thermal stability
-improved propagation tear strengths
-motors and generators of many sizes and temperature classes
-most commonly used for slot liners, wedges and phase insulation in motors and generators which have thermal requirements above Class H applications  
NKN – (Nomex®-Kapton®-Nomex®) 3-Ply LaminateClass R-220°CBeige-excellent for high-temperature applications
-will not delaminate or blister at high temperatures
-high dielectric strength
-good initial tear strength and tensile properties
-long thermal stability
-improved propagation tear strengths
-motors and generators of many sizes and temperature classes
-most commonly used for slot liners, wedges and phase insulation in motors and generators which have thermal requirements above Class H applications
-interlayer insulation in transformers and other electrical machines and appliances

Insulating Films

Material/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
PET Polyester Film (Mylar®/Teijin®)Class F-155°CClear-cost-effective
-chemical inertness
-good dielectrics
-high temperature durability
-good handling characteristics
-various constructions available
-easy to fabricate
-excellent release film
-electric motor insulation
-transformer insulation
-electronics
-imaging and graphics
-packaging
-gaskets
-edge reinforcement
-embossing
-window film
-release films
-solar control structures
PI Polyimide Film (Kapton®)Class H-180°CAmber-wide temperature range
-high tensile strength
-high wear tolerance
-high temperature tolerance
-chemical-resistant
-excellent balance of properties
-easy to fabricate
-mechanical parts
-electronic parts
-electrical insulation -wire wrap
-pressure sensitive tape
-LCD alignment layer
-fiber optics cable
-insulation blankets
-insulation tubing
-automotive, diaphragms, sensors and manifolds
-etching
-shims
Tedlar® PVF Polyvinyl Fluoride Filmn/aTransparent

-inert
-non-stick
-fade-resistant
-high temperature
-chemical resistant
-various constructions available for specific applications

-apply to surfaces for anti-graffiti purposes, film can easily be cleaned to remove graffiti
-ideal release film due to non-stick properties
-ideal for use in high voltage electrical power applications
-gas sample bags
-printed circuit boards
-solar panels
-aerospace
-architectural substrate protection
-transit interior protection
-wind turbine blades release film and protection
-printing applications
PTFE Polytetrafluoroethylene Film (Teflon®)Class H-200°CWhite-low friction coefficient
-high heat resistance
-high resistance to chemicals and solvents
-anti-stick -high dielectric properties
-non-toxic
-excellent release film
-virgin grade available  
-wire and cable insulation
-release films and dielectric insulation layer for circuit boards
-ultra-pure packaging for valuable pharmaceuticals and chemicals
-batteries and fuel cells -release sheet in LCD manufacturing
-seals in large chemical tanks
-expansion joint components
-release films in composite molding including wings of aircraft
-pre-filters for medical and microelectronics equipment and gas vents for chemical containment
-high performance convoluted hose

Insulating Cloths/Fabrics

Material/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
Varnished Polyester Glass FabricClass F-155°CYellow or Black-high degree of conformability
-high dielectric strength
-flexible, tough construction for ease of insertion
-good punch-through and abrasion resistance
-excellent upgrade from cotton based materials
-compatible with most varnish and resin systems
-electric motors
-generators
-transformers
-phase separation
-slot liners
-barrier and layer insulation
-bus bar
-coil wrapping  
High -Temperature Varnished Polyester Glass (THERM-AL® H75)Class H-180°CYellow-exceptional flexibility
-high crease-tear resistance
-tough, durable material
-conformability characteristics not seen in ordinary glass substrates
-thermal endurance in excess of 50,000 hours at 180°C
-electric motors
-generators
-transformers
-phase separation
-slot liners
-barrier and layer insulation
-bus bar
-coil wrapping
-motor lead tie down and connector tape
CHEMFAB® PTFE Coated Fiberglass Fabricn/aTan-strong, durable and long lasting in demanding environments
-allow for consistent performance and processing at high and low temperatures
-reliable containment and barrier solution
-economical
-roofing membranes
-chemical barrier membranes
-expansion joint fabrics
-easy release platen covers
-insulation layer and bearing surfaces
-cooking release sheets
-conveyor belts
-release sheets
-gaskets
-heat sealing
-packaging
Polyester Felt (Dacron®)n/aWhite-economical
-high-temperature felt
-low density
-compressible
-conformable
-porous
-filtration applications
-gaskets
-wipers
-padding
-surgical fabrics
-reinforcement matting

Specialty Flexible Materials

Material/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
Rubbern/aAvailable in various colours-excellent elasticity
-very tough
-water repellent and resistant to alkalies and weak acids
-impermeable
-good electrical insulator
-electrical insulation
-seals
-gaskets
-o-rings
-rollers and belting
-medical applications
-aerospace applications
-electronics applications
-clothing and footwear  
PVC Vinyln/aAvailable in various colours-economical
-flexible and conformable
-fire-resistant
-strong and durable
-resistant to moisture, humidity, chemicals, corrosion, abrasion, UV degradation, extreme temperature and more
-wire and cable wrap
-furniture
-flooring
-vehicle accessories
-displays and signage
-medical products
-clothing
-bags and accessories
Papern/aAvailable in various colours-economical
-thin
-versatile

-packaging
-printing
-industrial and construction applications
-displays and signage

Transformerboard/PressboardClass A-105°CBrown-calendered
-free from metallic particles
-specifically designed for curved insulation components
-curved insulation components
-cylinders, punchings, stamped pieces and machine-formed parts in power, distribution and specialty transformers
Nomex®  Densified PressboardClass R-220°CNatural-excellent balance of rigidity and conformability
-outstanding saturabilty
-excellent properties in oil  
-designed specifically for oil-filled transformers
-3-dimensional parts such as V-rings, angle rings and spools
-barrier, gap spacers and core tubes
-well suited for larger transformer designs -structural components  
Flame Barrier FRB LaminateClass B-130°CAvailable in various colours-excellent flame barrier
-excellent ignitability resistance
-excellent arc and track resistance
-good dielectric strength
-dimensionally stable
-general purpose lighting luminaries (including LED type)
-high temperature label
-electric and hybrid electric vehicles (between batteries, power converters, etc.)
-appliances (vacuum cleaners, slow cookers, rice cookers, etc.)
-electrical devices (timers, actuators, switches, etc.)
Mican/aNatural-flexible and can be formed at room temperature
-asbestos free
-high temperature resistance
-excellent thermal and electrical properties
-electro-domestic appliances such as hair dryers, fan-heater type space heaters, circuit breakers and transformers, etc.
-sheathing and covering
-used as a separator or insulati foil
-its spring power is used in some applications -electric arc furnace -heating elements for industrial and household appliances -for extreme high temperature applications
Copper Foiln/aCopper-very high thermal and electrical conductivity
-malleable
-ductile
-aesthetically pleasing
-cable wrap
-batteries
-circuit boards
-transformers
-solar/alternative energy
-window and stained glass
Aluminum Foiln/aAluminum-1/3 the density of copper or steel
-malleable
-ductile
-easy to fabricate
-automotive
-medical packaging
-electronics
-circuit boards
-sound dampening
-shielding
Stainless Steel Foiln/aSteel-non-corrosive
-non-magnetic
-non-staining
-aesthetically pleasing
-automotive
-surgical instruments
-architecture
-heat treating
-solar/alternative energy