Low pressure laminates: (Polyester resins)
NEMA GRADE |
COMPOSITION |
QUALITIES & APPLICATIONS |
COLOR & THICKNESS |
MILITARYSPECS |
GPO-1 |
Economy grade fiberglass mat reinforced thermoset polyester molded sheet. |
Exhibits good punching characteristics. Typical for transformer spacers and supports. |
Standard color is cream to beige with thickness range of 1/32" to 2" |
L-P-509
MIL-P-24364 |
GPO-2 |
Glass mat reinforced thermoset polyester molded sheet. |
Thermal Class B, 130º C electrical/160º C mechanical material UL recognized with flame rating 94V-0. General purpose electrical insulation applications where flame retardant material is required. |
Standard color is red with thickness range of 1/32" to 2" |
L-P-509
MIL-P-24364 |
GPO-3 |
Glass mat reinforced thermoset polyester molded sheet both arc and track resistant. |
UL recognized grade, highly flame retardant and low smoke generating. Applications include high voltage appliance insulators, bus bar supports and barriers in switch gear. |
Standard color is red with thickness range of 1/32" to 2" |
MIL-P-24364 |
HIGH TEMP |
Glass mat reinforced thermoset polyester molded sheet which carries a UL thermal recognition. |
UL thermal recognition of 220º C electrical / 210º C mechanical Qualifies as a Class R material and used in elevated temperature applications where high strength NEMA GPO-1 is required. |
Standard color is beige with thickness range of 1/32" to 2" |
|
High Pressure laminates: (Phenolic resins)
Paper base laminates: X, XX, XXX, XP, XPC, XXP, XXXP
NEMA GRADE |
APPLICATIONS |
FEATURES |
COLORS
BASE MATERIAL
RESIN TYPE |
MILITARYSPECS |
X |
Mechanical grade, terminal boards, structural parts, switch bases, washers, panels |
General purpose, high mechanical strength, electrical properties are secondary |
Black,Tan
Paper
Phenolic |
MIL-I-24768/12PBM |
XX |
Electrical grade, panel boards, relay and switch bases, breaker arms, barriers |
Electrical insulation in dry or humid conditions, good machining, fair mechanical strength |
Black,Tan
Paper
Phenolic |
MIL-I-24768/11PBG |
XXX |
Electrical grade, panel boards, high voltage switch gear, radio, television panels |
Electrical insulation, high humidity resistance, good dimensional stability, excellent resistance to splitting |
Black,Tan
Paper
Phenolic |
MIL-I-24768/10PBE |
XPC |
Mechanical grade, thick punch parts |
Soft punch plate, cold punch |
Black,Tan
Paper
Phenolic |
MIL-I-24768/20PMB-PC |
Cotton cloth laminates: C, CE, L, LE
NEMA GRADE |
APPLICATIONS |
FEATURES |
COLORS
BASE MATERIAL
RESIN TYPE |
MILITARYSPECS |
C |
Mechanical grade, gears, pinions, spacers, structural applications |
Economy grade, high impact strength, good mechanical properties |
Black, Tan to Red
Canvas
Phenolic |
MIL-I-24768/16FBM |
CE |
Mechanical-electrical grade, small gears, pinions, radio parts, marine switch boards |
Economy grade, good acid resistance, low voltage, low frequency electrical performance |
Black, Tan to Red
Canvas
Phenolic |
MIL-I-24768/14FBG |
- |
Mechanical grade, piston, packing rings, textile mill bearings |
Self-lubricating, low co-efficient of friction |
Black
Canvas
Graphite |
MIL-P-5431 |
L |
Mechanical grade, fine tooth gears, radio parts, terminal board |
High mechanical strength, good appearance, good machining qualities |
Tan to Yellow
Linen
Phenolic |
MIL-I-24768/15FBI |
LE |
Electrical-mechanical grade, marine relay bases, terminal bases and strips, radio parts, high humidity applications |
Electrical and mechanical strength, moisture resistance |
Black, Tan to Yellow
Linen
Phenolic |
MIL-I-24768/13FBE |
- |
Similar to grade L but bonded with a resin containing uniformly dispersed graphite |
Used in the same type of application as type CYB but where fine machining is required |
Black
Linen
Graphite |
MIL-P-5431 |
Glass fabric based laminates : G10/FR4, G3, G11, G5, G7, G9
NEMA GRADE |
APPLICATIONS |
FEATURES |
COLORS
BASE MATERIAL
RESIN TYPE |
MILITARYSPECS |
G-3 |
Structural applications, seals, gaskets -resist acids |
Excellent strength, excellent heat resistance, high impact,low-moisture |
Tan
Glass
Phenolic |
MIL-I-24768/18GPG |
G-5 |
Electrical-mechanical grade, switch board panels, arc barriers, circuit breakers, structural electrical parts |
High mechanical strength, high arc and heat resistance, self-extinguishing, excellent electrical properties under dry conditions |
Gray to Brown
Glass
Melamine |
MIL-I-24768/8GMG |
G-7 |
Electrical grade, class H insulation, heating appliance insulation |
Good electrical properties under humid conditions, excellent heat and arc resistance, Self-extinguishing |
White
Glass
Silicone |
MIL-I-24768/17GSG |
G-9 |
Electrical-mechanical grade, marine switch board panels,structural parts |
High mechanical strength, high arc and heat resistance, self-extinguishing, excellent electrical properties under dry and humid conditions |
Gray to Brown
Glass
Melamine |
MIL-I-24768/1GME |
G-10 |
Electrical-mechanical grade, rotor slot insulation, structural members at elevated temperatures |
High mechanical strength at room temperatures up to 150º C, retains 50% of its flexural strength at elevated temperatures |
Green
Glass
Epoxy |
MIL-I-24768/2GEE |
G-11 |
Electrical-mechanical grade, high humidity applications, power generation and transmission components |
High flexural, impact and bond strength at room temperatures, good electrical properties under dry and humid conditions,non-brominated resin system |
Green to Yellow
Glass
Epoxy |
MIL-I-24768/3GEB |
FR-4 |
Electrical-mechanical grade, terminal boards, high humidity applications |
High flexural, impact and bond strength at room temperatures, good electrical properties under dry and humid conditions, U.L. 94V-0 |
Green
Glass
Epoxy |
MIL-I-24768/27GEE-F |
Film & Fiber:
Nomex® , Mylar® , Polyester film, Kapton®, Polyamide film, Vulcanized fiber
Sample Parts List:
Alignment Plates |
Flexible Circuit Stiffeners |
Rings |
Back Planes |
Frames |
Seals |
Brackets |
Gaskets |
Separators |
Bushings |
Graphic Overlays |
Shields |
Carrier Plates |
Guards |
Shims |
Connector Mounting |
Guide Rails |
Spacers |
Connectors |
Holders |
Stiffeners |
Covers |
Housings |
Stops |
Discs |
Instrument Panels |
Templates |
Display Panels |
Insulators |
Terminal Boards |
End Caps |
Lenses |
Test Fixtures |
End Panels |
Lids |
Thermal Insulators |
End Plates |
Pin Grids |
Thrust Washers |
Face Plates |
Plugs |
Washers |
Filters |
Rails |
Wave Solder Pallets |
Fixtures |
Retainers |
Wedges |
|
