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Compare our offering of composites to find the right material for you.
Structural FRP Fiberglass Square Tubes
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Use these FRP fiberglass square tubes as an alternative to wood in structural applications. Made of fiberglass-reinforced polyester, they are strong and lightweight.
Outside | Inside | 5 ft. Long | 10 ft. Long | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Wd. | Wd. Tolerance | Ht. | Ht. Tolerance | Wd. | Ht. | Straightness Tolerance | Color | Temp. Range, ° F | Tensile Strength | Impact Strength | Hardness | For Use Outdoors | Each | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/8" Thick Wall (-0.019" to 0.019") | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1" | -0.094" to 0.094" | 1" | -0.094" to 0.094" | 3/4" | 3/4" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 000000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 1/4" | -0.094" to 0.094" | 1 1/4" | -0.094" to 0.094" | 1" | 1" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 00000 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 1/2" | -0.094" to 0.094" | 1 1/2" | -0.094" to 0.094" | 1 1/4" | 1 1/4" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 00000 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 3/4" | -0.094" to 0.094" | 1 3/4" | -0.094" to 0.094" | 1 1/2" | 1 1/2" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 00000 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2" | -0.094" to 0.094" | 2" | -0.094" to 0.094" | 1 3/4" | 1 3/4" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 00000 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/4" Thick Wall (-0.038" to 0.038") | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2" | -0.094" to 0.094" | 2" | -0.094" to 0.094" | 1 1/2" | 1 1/2" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 00000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/2" | -0.094" to 0.094" | 2 1/2" | -0.094" to 0.094" | 2" | 2" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 000000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3" | -0.094" to 0.094" | 3" | -0.094" to 0.094" | 2 1/2" | 2 1/2" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 000000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4" | -0.094" to 0.094" | 4" | -0.094" to 0.094" | 3 1/2" | 3 1/2" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 000000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3/8" Thick Wall (-0.056" to 0.056") | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6" | -0.094" to 0.094" | 6" | -0.094" to 0.094" | 5 1/4" | 5 1/4" | 0.03"/1 ft. | Green | -60 to 140 | 7,000 psi to 30,000 psi (Good) | 4 ft·lbf/in to 25 ft·lbf/in (Excellent) | Barcol 45 (Hard) | Yes | 0000000 | 000000 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arc-Resistant GPO3 Fiberglass Square Tubes
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Route and insulate wire using these square fiberglass tubes, which fit better along edges and around corners than round tubes. Use them for electrical applications in humid locations. They’re arc and track resistant, and better electrical insulators than FRP fiberglass. Made of fiberglass-reinforced polyester, they’re also known as polyester-grade industrial laminate.
Outside | Inside | 5 ft. Long | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wd. | Wd. Tolerance | Ht. | Ht. Tolerance | Wd. | Ht. | Straightness Tolerance | Color | Temp. Range, ° F | Tensile Strength | Impact Strength | Hardness | For Use Outdoors | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
UL 94 V-0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/8" Thick Wall (-0.02" to 0.02") | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 1/2" | -0.062" to 0.062" | 1 1/2" | -0.062" to 0.062" | 1 1/4" | 1 1/4" | 0.050"/1 ft. | Red | -50 to 265 | 10,000 psi to 15,000 psi (Good) | 8.2 ft·lbf/in to 12 ft·lbf/in (Excellent) | Barcol 50 (Hard) | No | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/4" Thick Wall (-0.02" to 0.02") | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2" | -0.062" to 0.062" | 2" | -0.062" to 0.062" | 1 1/2" | 1 1/2" | 0.050"/1 ft. | Red | -50 to 265 | 10,000 psi to 15,000 psi (Good) | 8.2 ft·lbf/in to 12 ft·lbf/in (Excellent) | Barcol 50 (Hard) | No | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Multipurpose Flame-Retardant Garolite G-10/FR4 Rectangular Tubes
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These rectangular tubes are flame retardant, machinable, and electrically insulating. They’re made of epoxy resin, making them good for use with printed circuit boards, insulating washers, and transformer components. With low moisture absorption, these tubes are often used as thermal insulators. Made with fiberglass fabric reinforcement, they’re strong and easier to machine than other glass cloth phenolics. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.
Outside | Inside | Temp. | 36" | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wd. | Wd. Tolerance | Ht. | Ht. Tolerance | Wd. | Ht. | Min. | Max., ° F | Tensile Strength | Impact Strength | Hardness | For Use Outdoors | Mil. Spec. | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
0.063" Thick Wall | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Green | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2.156" | -0.015" to 0.015" | 1.156" | -0.015" to 0.015" | 2.03" | 1.03" | Not Rated | 265 | 32,000 psi to 40,000 psi (Excellent) | 5.5 ft·lbf/in to 12 ft·lbf/in (Excellent) | Rockwell M100 (Extra Hard) | Yes | MIL-I-24768/27 | 0000000 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/8" Thick Wall | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Green | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | -0.015" to 0.015" | 3/4" | -0.015" to 0.015" | 1/2" | 1/2" | Not Rated | 265 | 32,000 psi to 40,000 psi (Excellent) | 5.5 ft·lbf/in to 12 ft·lbf/in (Excellent) | Rockwell M100 (Extra Hard) | Yes | MIL-I-24768/27 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1" | -0.015" to 0.015" | 7/8" | -0.015" to 0.015" | 3/4" | 5/8" | Not Rated | 265 | 32,000 psi to 40,000 psi (Excellent) | 5.5 ft·lbf/in to 12 ft·lbf/in (Excellent) | Rockwell M100 (Extra Hard) | Yes | MIL-I-24768/27 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1/4" Thick Wall | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Green | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 5/8" | -0.015" to 0.015" | 1 1/4" | -0.015" to 0.015" | 1 1/8" | 3/4" | Not Rated | 265 | 32,000 psi to 40,000 psi (Excellent) | 5.5 ft·lbf/in to 12 ft·lbf/in (Excellent) | Rockwell M100 (Extra Hard) | Yes | MIL-I-24768/27 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
