| Grade X | Hard, strong, paper-reinforced laminates; good tensile compression and flexural strengths; widely used for mechanical applications when electrical requirements are not severe; should be used with discretion under high humidity conditions. |
| Grade XX | Hard paper-reinforced laminate with phenolic resin binder; good mechanical properties, high dielectric strength and resistance to moisture suit it for many usual electrical applications; good machinability. |
| Grade XXX | Paper-reinforced laminate with a phenolic resin binder; has approximately the same mechanical properties as Grade XX but is considerably better electrically due to its high resin content; desirable for use at radio frequencies and under high humidity conditions (e.g., in telephone jacks where dimensional stability is important); minimum cold flow. |
| Grade XP | Paper-reinforced laminate with phenolic resin binder and addition of a plasticizer; similar to Grade X but more flexible and slightly better electrically (not as strong mechanically); may be punched readily at room temperature in thicknesses up to 1/16-in; hot-punched up to 3/32 in. |
| Grade XPC | Paper-reinforced laminate with plasticized phenolic resin binder; primarily intended for cold punching and shearing; more flexible than Grade XP. |
| Grade XXP | Paper-reinforced laminate with plasticized phenolic resin binder; similar to Grade XX in electrical and moisture-resistant properties and to Grade XP in punchability; for electrical or electronic parts, especially those punched. |
| Grade XXXP | Paper-reinforced laminate similar to Grade XXX, but bonded with plasticized resin; low in dielectric losses; low cold flow; recommended for punching of parts requiring high insulation resistance at high frequencies and high humidity; should be punched hot. |
| Grade XXXP-C, FR-2 | Paper-reinforced laminates similar to XXXP in mechanical properties, dielectric strength, dissipation factor and dielectric constant, but with better resistance to moisture and high insulation resistance; indicated for high humidity conditions; XXXP-C is recommended for punching and shearing at room temperature; FR-2 is a flame-retarded grade. |
| Grade C | Fabric-reinforced laminate produced from cotton fabric weighing over 4 oz./sq.yd; thread count not more than 72/in. in filler direction, not over 140 total in warp and filler directions; Grade C is tough and strong, has high impact strength, machines readily and is good for a wide variety of mechanical applications such as gears, pulleys, and sheaves. |
| Grade CE | Similar to Grade C in weight of fabric and thread count; greater resistance to moisture than grade C and controlled electrical properties; easy to machine; used in electrical applications requiring mechanical strength. |
| Grade L | Fine-weave cotton fabric-reinforced grade with phenolic binder, made from fabric weighing not over 4 oz./sq. yd.; minimum thread count/in. in any ply is 72 in filler direction and 140 total in both warp and filler directions; has good mechanical properties; machines easily and cleanly; recommended for fine punching or threading; suited for close-tolerance machining; fine pitch gears are typical uses. |
| Grade LE | Fine-weave cotton fabric-reinforced grade of same thread count as Grade L; similar to Grade L in mechanical and machining characteristics but superior in moisture resistance, dissipation factor, and other electricals; used where good electrical and mechanical property combinations are needed. |
| Grade FR-3 | Paper-reinforced laminate bonded with epoxy resin; superior in electrical characteristics to Grade XXXP; good mechanical properties; suitable for punching at room temperature; FR-3 is flame retardant recommended for printed circuit boards and electrical insulation requiring low loss. |
| Grade N-1 | Staple fiber-nylon grade impregnated with phenolic resin; electrical properties of Grade XXXP and mechanical toughness of Grade C; improved insulation resistance for high humidity applications; high-voltage electrical insulators where low dielectric loss, high insulation resistance plus fungus resistance are required. |
| Grade G-3 | Continuous-filament woven glass-fabric grade with a phenolic resin binder; good thermal endurance; good mechanical strength, especially flexural, compressive, shear, and impact; very low dissipation factor. |
| Grade G-5 | Continuous-filament woven glass-fabric grade impregnated with melamine resin; high mechanical strength and arc resistance; excellent electrical properties under dry conditions; flame retardant. |
| Grade G-7 | Continuous-filament glass-cloth reinforcement with a silicone resin binder; good dielectric loss factor and insulation resistance under humid conditions over a wide temperature range; good heat and arc resistance. |
| Grade G-9 | Continuous-filament woven glass-fabric grade impregnated with melamine resin; high mechanical strength and arc resistance; good electric strength properties under wet conditions; flame retardant. |
| Grade G-10, G-11, FR-4, FR-5 | Continuous-filament woven glass-fabric grades impregnated with epoxy resin; particularly noted for good electrical values; possess low moisture absorption and low dissipation factor, and maintains electrical characteristics over a wide range of humidities and temperatures; G-10 and FR-4 retain 20% of their flexural strength at 150°C when tested at this temperature; G-11 and FR-5 retain 50% of their flexural strength when tested at the same temperature; FR-4 and FR-5 are flame retardant. |
| Vulcanized fibre; commercial, bone, and insulation grades. | Somewhat similar to Grade C laminate but with much higher moisture pickup; tough and resilient, with high resistance to arc, impact, abrasion and wear; used as washers, terminal block covers, insulating plates and switch covers, slot insulation, arc barriers, abrasive disks, railroad track insulation, trunks and materials-handling cases. |
| GPO-1 | Polyester/glass-mat sheet laminate - suited for general-purpose mechanical and electrical applications. (Polyester glass-mat sheets are made from a mat of random-laid glass fibres which are saturated with a polyester resin combined with suitable fillers and cured under heat and pressure.) |
| GPO-2 | Polyester/glass-mat sheet laminate - for mechanical and electrical applications where low flammability is required.Polyester glass-mat sheets are made from a mat of random-laid glass fibres which are saturated with a polyester resin combined with suitable fillers and cured under heat and pressure.) |
| GPO-3 | Polyester/glass-mat sheet laminate - for mechanical and electrical applications requiring resistance to carbon tracking and low flammability properties.Polyester glass-mat sheets are made from a mat of random-laid glass fibres which are saturated with a polyester resin combined with suitable fillers and cured under heat and pressure.) |
Contact Us
Locations
About Us
Track Shipment
Register
Log In
