Rigid Materials

Electrowind Converting Solutions offers precision machining and converting services for a wide variety of rigid (hard) materials. We specialize in machining electrical insulating laminates, thermoplastics and precious metals while offering contract machining and converting capabilities for a wide variety of rigid materials.

Glass Polyester Laminates

NEMA Grade/Trade NameThermal ClassTypical ColourFeatures/BenefitsTypical Applications
GPO-1 Polyester Glass LaminateClass B-130°CBrown-economical
-easy to machine
-outstanding punchability
-electric motors
-dry-type transformers
-transformer spacers and supports
-electrical and mechanical applications
-electric motor wedges
GPO-2 Polyester Glass LaminateClass F-155°CRed-high strength
-good flame/heat resistance
-outstanding punchability
-cost-effective
-switch plates
-controls
-control panels
-terminal boards
-intricate punchings for switches
-applications requiring heat and flame resistance and higher retention of properties after heat aging
GPO-3 Polyester Glass Laminate (UTR or H900)Class B-130°CRed-industry Standard
-outstanding  flame and arc/track resistance
-electrically insulating
-highly flame resistant
-low smoke and smoke toxicity
-electrical applications
-high-voltage appliances insulators
-bus bar supports
-barriers, mounting panels and structural support for switchgear
-transit applications
-marine applications
-electric motor wedges
SG-200 or HST-II Polyester Glass LaminateClass R-220°CTan-ideal for high temperature applications
-high strength
-easy to machine
-high-temperature version of GPO-1  
-dry-type transformers
-high voltage transformers
-DC motors
-high temperature NEMA GPO-1 applications
-layer and core insulation
-washers
-transformer winding combs
-press platen/mold insulation
FHT Polyester Glass LaminateClass R-220°CCream-highly flexible
-high temperature
-excellent dielectric strength
-easy to machine
-dry-type transformers
-layer and core insulation
-cost-effective alternative for aramid paper
H755 Polyester Glass LaminateClass F-155°CIvory-a higher temperature NEMA GPO-1
-meets and exceeds NEMA GPO-1 properties
-electrical applications
-structural applications
-for use in Class F insulation systems
H-950 Polyester Glass LaminateClass F-155°CRed-meets and exceeds NEMA GPO-3 properties
-excellent smoke, flame and toxicity characteristics
-great arc protection
-non-toxic  as defined by Mil Spec MIL M-14H
-transit application
-electrical applications

Paper-Canvas-Based Laminates

NEMA Grade/Trade NameTemperature ClassTypical ColourFeatures/BenefitsTypical Applications
C Canvas Phenolic LaminateClass B-130°CBrown-economical
-used where electrical insulation is not required
-superior impact strength
-easy to machine
-low moisture and water absorption
-excellent mechanical stability  
-structural applications
-gears
-spacers
-piston rings
-washers
-bearings
CE Canvas Phenolic LaminateClass B-130°CBrown-cost-effective
-excellent wear resistance for wear parts
-easy to machine
-good mechanical properties and toughness
-higher impact strength than NEMA XX grades
-mechanical applications
-gears
-pulleys
-sheaves
-insulators
-bushings
-washers
-spacers
X Paper Phenolic LaminateClass B-130°CBrown-economical
-excellent mechanical and electrical properties
-good tensile, compressive and flexural strength
-easy to machine
-tap changer boards
-terminal strips
-phase barriers
-tooling boards
-fuse boards
-conduit tubes
-lead clamps
XX Paper Phenolic LaminateClass B-130°CBrown-cost-effective
-easy to machine
-low moisture absorption
-excellent dimensional stability
-mechanical applications
-insulating washers
-sleeves
-switch bases
-panelboards
-electric arc furnace components
XXX Paper Phenolic LaminateClass B-130°CBrown-similar to XX but is a better electrical insulator
-excellent electrical insulator
-mechanically stable
-good dielectrics
-insulating washers
-sleeves
-switch bases
-terminal strips
-phase barriers
-conduit tubes
-lead clamps
-fuse boards
-panelboards
L Linen Phenolic LaminateClass B-130°CTan-good mechanical properties
-easy to machine
-easy to machine for intricate parts
-structural applications
-close tolerance parts
-intricate machined parts
-gears
-washers
-bearings
LE Linen Phenolic LaminateClass B-130°CTan-good moisture resistance
-easy to machine for intricate parts
-versatile, used in a wide range of electrical and structural applications
-intricate machined parts
-radio components
-fine gears and pinions
-spacers
-bushings
-rollers
Permali Permawood® (Lignostone®)Class B-130°CBrown-low specific weight
-good electrical insulation
-withstands high mechanical loading
-good slippage
-low and high-temperature resistance
-resistant to abrasion and wear
-ideal for oil-filled transformers
-ideal for power and distribution transformers
-ideal for locomotive transformers
-top and bottom platforms
-pressure rings
-stepped blocks
-pressure parts
-top and bottom coil supports
-lead and cleat supports
-fasteners
-spacers
Arboron® Paper Phenolic LaminateClass B-130°CBlack-high strength
-high arc resistance
-excellent chemical and abrasion resistance
-easy to machine
-good electrical and mechanical properties  
-electrical control and test panels
-switchgear mounting
-bus bar insulation
-phase barriers
-electrical enclosures
-drill jigs and fixtures
-non-conductive work benches
-electric arc furnace components
-needle trade templates
-die stock
-transportation industry panels

Woven Fiberglass Laminates

NEMA Grade/Trade NameTemperature ClassTypical ColourFeatures/BenefitsTypical Applications
G-10/FR-4 Epoxy Glass LaminateClass B-130°CYellow-extremely high mechanical strength
-good dielectric loss properties
-water absorption virtually nil
-outstanding insulator
-widely used in electronics
-used where strength-to-size ratio is critical
-terminal boards
-washers
-sleeves
-structural components
-electric motor slot wedges and topsticks
-electric arc furnace mast arm insulation
-electric arc furnace components
G-7 Silicone Glass LaminateClass R-220°CCream-high temperature resistance
-excellent heat and arc resistance
-good dielectric loss and electrical properties under dry and humid conditions
-self-extinguishing
-electronic applications
-high temperature applications
-high heat and/or arc resistant applications
-heating and appliance insulation
-electric arc furnace mast arm insulation
-electric arc furnace components
G-9 Melamine Glass LaminateClass B-130°CNatural-extremely hard and abrasion resistant
-excellent arc resistance
-good dimensional stability
-caustic resistant
-switchboard panels
-arc barriers
-structural electrical parts
-specialty terminal blocks
-circuit breaker components
-motor wedges
-armature insulation
-electric arc furnace mast arm insulation
-electric arc furnace components
G-11 Epoxy Glass LaminateClass B-130°CYellow-high mechanical strength at temperatures up to 150°C
-self-extinguishing
-retains 50% of its flexural strength at elevated temperatures
-not flame retardant  
-power generation and transmission components
-switchboard panels
-arc barriers
-structural electrical parts
-specialty terminal blocks
-circuit breaker components
-motor wedges
-armature insulation
-electric arc furnace mast arm insulation
-electric arc furnace components
G-5 Melamine Glass LaminateClass B-130°CTan-flame resistant
-easy to machine
-excellent electrical properties in high humidity conditions
-high strength
-excellent arc resistance
-structural electrical parts
-arc barriers
-circuit breakers
-motor wedges
-switchgear terminal boards
-armature end insulation
-fuse insulators

Thermoplastics

Grade/Trade NameTemperature ClassTypical ColourFeatures/BenefitsTypical Applications
Lexan® Polycarbonaten/aClear-high impact strength (bulletproof options)
-crystal-clear transparency
-dimensional stability at elevated temperatures
-lightweight
-flame retardant
-excellent for formed or bent parts
-bus, train and truck interior components
-vertical glazing
-windows
-windshields
-machine and safety guards
-helmets, visors and riot shields
-window well covers
-interior/exterior signage and displays
-internal shielding for switchgear
Acrylicn/aVarious colours available-excellent mechanical and chemical properties
-outstanding optical qualities
-available in a variety of colours and finishes
-weather resistant
-lightweight
-an ideal glazing material
-FDA approval
-ideal for glazing applications
-ideal for decorative applications
-interior/exterior signage and displays
-room dividers and partitions
-window glazing
-picture frames
-furniture
-skylights
ABS (Acrylonitrile-Butadiene-Styrene)n/aBeige or Black-relatively low cost
-easy to machine
-excellent impact resistance
-excellent aesthetic qualities
-easy to paint and glue  
-battery cases
-appliance housings
-power tool housings
-tool boxes
-furniture
-camera bodies
-automotive body parts
-enclosures and casings
Delrin® (Acetal Homopolymer)n/aVarious colours available-good dimensional stability
-low friction plastic
-low moisture absorption
-easy to machine
-high strength and stiffness
-superior impact and creep resistance
-excellent chemical resistance
-FDA, NSF and USDA approval
-good wear and abrasion resistance
-excellent for wear parts
-parts exposed to moist or wet environments
-pump and valve components
-gears
-bearings
-automotive components
-fan and blower blades
-shower heads
-bushings
-rollers
-fittings
-electrical insulation parts
-conveyor belts
-healthcare delivery devices
-safety restraints
-wear parts
Ultem® PEI (Polyetherimide)n/aVarious colours and finishes available-excellent mechanical strength
-outstanding heat resistance
-exceptional resistance to environmental forces
-inherent flame resistance with low smoke generation
-high mechanical strength
-high dielectric strength and stability
-easy to machine and finish
-FDA and NSF approval in natural grade
-automotive components including transmission components, throttle bodies, sensors, and thermostat housings
-aircraft components including air and fuel valves, food tray containers, steering wheels, interior panels and semi-structural parts
-medical components including reusable medical devices like sterilization trays, stopcocks, dentist devices and pipettes
-food trays, microwaveable bowls, cooking utensils and ovenware
-electrical, lighting and telecommunication device components
-water-pump impellers, expansion valves, hot water reservoirs and heat exchange systems
Cast Nylon (Polyamide)n/aAvailable in various colours-high impact resistance
-lightweight
-excellent tensile and compressive strength
-good slip and abrasive performance
-easy to machine
-good wear properties
-excellent electrical insulator
-outstanding thermal properties
-water absorbing and should not be used in wet or humid applications
-can replace metals such as bronze, iron, steel and aluminum as a lightweight and easier to maintain material in mechanical applications
-bearings
-gears
-pulleys
-sheaves
-wear shoes
-wear pads
-valve seals
-sprockets
-wear plates

Ballistic Materials

Grade/Trade NameTemperature ClassTypical ColourFeatures/BenefitsTypical Applications
ShotBlockern/aNatural-excellent anti-ballistic properties
-superior impact resistance
-lighter than steel
-cost-effective material for ballistic applications
-walls, counters and doors for guard stations, high-security facilities, courtrooms, banks and convenience stores
-lightweight, cost-effective alternative to steel for armoring automobiles, trucks, jeeps and aircraft  
Lexan® Polycarbonaten/aClear-high impact strength (bulletproof options)
-crystal-clear transparency
-dimensional stability at elevated temperatures
-lightweight
-flame retardant
-excellent for formed or bent parts
-bus, train and truck interior components
-vertical glazing
-windows
-windshields
-machine and safety guards
-helmets, visors and riot shields
-window well covers
-interior/exterior signage and displays

Specialty Rigid Materials

Grade/Trade NameTemperature ClassTypical ColourFeatures/BenefitsTypical Applications
Mica Platen/aNatural-high temperature resistance
-excellent thermal and electrical properties
-asbestos-free
-a variety of electromechanical and thermomechanical applications
-platen insulation
-used in high voltage appliances and devices
-used in induction and arc furnaces
-press platen/mold insulation
Glassn/aClear or available in various colours-optically clear
-aesthetically pleasing
-sterile material
-versatile for a variety of applications
-plates
-insulator rings
-window flanges
-liners
-cover slips
-signage and displays
-windows
-stained glass displays
-interior and exterior panels
-electronics and decorative applications
Ceramicn/aVarious colours available-excellent dielectric strength
-excellent physical properties
-excellent wear properties
-electrical and corrosion resistance
-semi-conductor components
-wear components
-heat insulating parts
-sensor parts
-liner motor parts
-electrical insulating components
-washers
Woodn/aNatural-economical
-strong
-natural
-versatile
-lightweight
-durable
-signage and displays
-doors
-cabinets
-handles
Granite, Marble and Other Stone Materialsn/aNatural-very hard
-extremely strong
-aesthetically pleasing
-does not fade
-countertops
-building veneer
-monuments
-floor tiles
-pavers
-stair treads
-sculptures
-architectural panels
Steel, Aluminum, Titanium, Bronze, Copper, Brass, Iron and Other Metal Materialsn/aNatural-hard
-durable
-conductive
-aesthetically pleasing
-automotive components
-electronics components
-aerospace components
-medical device components
-transportation components