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About Composites
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Multipurpose Flame-Retardant
Garolite G-10/FR4 Sheets and Bars
A good all-around choice, these Garolite G-10/FR4 sheets and bars are strong, machinable, and electrically insulating. They're made of a flame-retardant epoxy resin with fiberglass fabric reinforcement. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.
Wear-resistant sheets are coated to stand up to rubbing and scraping better than uncoated sheets.
- Color: See Table
- Max. Temperature: 265° F
- Tensile Strength: 35,000-50,000 psi (Excellent)
- Impact Strength: 5.5-12 ft.-lbs./in. (Excellent)
- Hardness:
Black, Blue, and Brown Sheets: Rockwell M100 (Extra Hard)
Yellow Sheets: Rockwell M110 (Extra Hard) - For Use Outdoors: No
- Specifications Met: MIL-I-24768/27, UL 94V0
Yellow sheets vary in shade from yellow-brown to light green.
12" × 12" | 24" × 36" | ||||
|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Each | Each | ||
Yellow | |||||
| 0.005" | -0.001" to 0.001" | 0000000 | 000000 | 0000000 | 000000 |
| 0.01" | -0.001" to 0.001" | 0000000 | 00000 | 0000000 | 00000 |
| 0.015" | -0.002" to 0.002" | 0000000 | 00000 | 0000000 | 00000 |
| 0.02" | -0.002" to 0.002" | 0000000 | 00000 | 0000000 | 00000 |
| 0.025" | -0.002" to 0.002" | 0000000 | 00000 | 0000000 | 00000 |
| 0.031" | -0.003" to 0.003" | 0000000 | 00000 | 0000000 | 00000 |
- Color: Yellow-brown to light green
- Max. Temperature: 265° F
- Tensile Strength: 35,000-50,000 psi (Excellent)
- Impact Strength: 5.5-12 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M110 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/27, UL 94V0
Economical Electrical-Insulating
Garolite XX Sheets and Strips
Stronger than Garolite CE with better electrical-insulating properties, Garolite XX sheets and strips are often fabricated into low-cost electrical components. Garolite XX is constructed of a phenolic resin with paper reinforcement, which makes it easy to machine. It's also known as paper-grade industrial laminate, phenolic, and Bakelite.
- Color: Brown or Black
- Max. Temperature: 265° F
- Tensile Strength: 8,000-23,900 psi (Excellent)
- Impact Strength: 0.35-0.55 ft.-lbs./in. (Poor)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/11, UL 94HB
| Thickness | Thickness Tolerance | Each | |
12" × 12" | |||
|---|---|---|---|
Brown | |||
| 1/32" | -0.004" to 0.004" | 00000000 | 00000 |
Black | |||
| 1/32" | -0.004" to 0.004" | 000000000 | 0000 |
12" × 24" | |||
Brown | |||
| 1/32" | -0.004" to 0.004" | 00000000 | 0000 |
Black | |||
| 1/32" | -0.004" to 0.004" | 000000000 | 0000 |
24" × 24" | |||
Brown | |||
| 1/32" | -0.004" to 0.004" | 00000000 | 00000 |
Black | |||
| 1/32" | -0.004" to 0.004" | 000000000 | 00000 |
24" × 36" | |||
Brown | |||
| 1/32" | -0.004" to 0.004" | 00000000 | 00000 |
Black | |||
| 1/32" | -0.004" to 0.004" | 000000000 | 00000 |
36" × 48" | |||
Brown | |||
| 1/32" | -0.004" to 0.004" | 00000000 | 00000 |
Black | |||
| 1/32" | -0.004" to 0.004" | 000000000 | 00000 |
- Color: Brown
- Max. Temperature: 265° F
- Tensile Strength: 8,000-23,900 psi (Excellent)
- Impact Strength: 0.35-0.55 ft.-lbs./in. (Poor)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/11, UL 94HB
High-Temperature Garolite G-11 Sheets
- Color: Green
- Max. Temperature: 335° F
- Tensile Strength: 37,000-58,600 psi (Excellent)
- Impact Strength: 7-15.3 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/3, UL 94HB
Offering higher strength and better heat resistance than Garolite G-10/FR4 sheets, these Garolite G-11 sheets are suitable for continuous use in elevated temperatures. They retain at least 50% of their structural strength at temperatures above 300° F. Made of an epoxy resin with fiberglass fabric reinforcement, Garolite G-11 is sometimes called epoxy-grade industrial laminate and phenolic.
Economical Garolite CE Sheets
- Color: Brown
- Max. Temperature: 235° F
- Tensile Strength: 6,000-10,000 psi (Good)
- Impact Strength: 1.4-1.7 ft.-lbs./in. (Poor)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/14, UL 94HB
These Garolite CE sheets are often fabricated into parts where high strength is not required. They are made of a phenolic resin with cotton fabric reinforcement, which makes it easy to machine into mechanical parts, such as pulleys, gears, bushings, and washers. Garolite CE is sometimes called canvas-grade industrial laminate, phenolic, and Bakelite.
Halogen-Free Garolite G-10 Sheets and Bars
Use these Garolite G-10 sheets and bars in place of Garolite G-10/FR4 for applications that are sensitive to halogen, such as in nuclear plants. They're strong, machinable, and electrically insulating. Made of an epoxy resin with fiberglass fabric reinforcement, Garolite G-10 is also called epoxy-grade industrial laminate and phenolic.
- Color: Yellow
- Max. Temperature: 265° F
- Tensile Strength: 32,000-40,000 psi (Excellent)
- Impact Strength: 5.5-9.5 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/2
Easy-to-Machine Garolite LE Sheets and Strips
- Color: Brown
- Max. Temperature: 235° F
- Tensile Strength: 6,000-15,300 psi (Good)
- Impact Strength: 0.8-1.25 ft.-lbs/in. (Poor)
- Hardness: Rockwell M100 (Extra Hard)
- For Use Outdoors: No
- Specifications Met:
MIL-I-24768/13 and UL94HB, except 1/32" thick sheets only meet MIL-I-24768/13
Using nothing more than standard high-speed steel tooling, these Garolite LE sheets and strips can be machined into intricate parts. Garolite LE is made of a phenolic resin with a fine-weave linen fabric reinforcement. It is sometimes referred to as industrial laminate, phenolic, and Bakelite.
Ultra-High-Temperature
Arc-Resistant Garolite G-7 Sheets
- Color: Off-White
- Max. Temperature: 425° F
- Tensile Strength: 18,000-27,700 psi (Excellent)
- Impact Strength: 6.5-19.1 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M65 (Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-24768/17, UL 94V0
Garolite G-7 withstands temperatures up to 425° F—higher than any other grade of Garolite. While not as strong as Garolite G-9 sheets, these sheets offer better arc resistance in dry environments and a higher level of electrical insulation. They are constructed of a silicone resin with fiberglass fabric reinforcement. Garolite G-7 is sometimes called silicone-grade laminate, phenolic, and Bakelite. Use it to fabricate high-frequency telecommunication equipment, transformers, and other parts that require a high heat tolerance.
Arc-Resistant GPO3 Fiberglass Sheets and Strips
- Color: Red
- Max. Temperature: 265° F
- Tensile Strength: 10,000-15,000 psi (Good)
- Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)
- Hardness: Barcol 50 (Hard)
- For Use Outdoors: No
- Specifications Met:
Sheets and Strips 1/16" and thicker meet UL 94V0
Often used for electrical applications in humid environments, these GPO3 fiberglass sheets and strips are arc and track resistant. They offer better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.