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Arc-Resistant GPO3 Fiberglass Square Tubes

- Color: Red
- Temperature Range: -50° F to 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: UL 94 V-0
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.
For technical drawings and 3-D models, click on a part number.
Outside | Inside | |||||||
---|---|---|---|---|---|---|---|---|
Width | Width Tolerance | Height | Height Tolerance | Width | Height | Straightness Tolerance | Each | |
4 ft. Lg. | ||||||||
1/4" Wall Thick. (-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" per ft. | 00000000 | 0000000 |
5 ft. Lg. | ||||||||
1/8" Wall Thick. (-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" per ft. | 00000000 | 00000 |
1/4" Wall Thick. (-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" per ft. | 00000000 | 000000 |
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 94 V-0
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.
For technical drawings and 3-D models, click on a part number.
Thick. | Thick. Tolerance | Flatness Tolerance | Each | |
12" × 12" | ||||
---|---|---|---|---|
1/32" | -0.008" to 0.008" | 0.600" | 0000000 | 00000 |
1/16" | -0.008" to 0.008" | 0.300" | 0000000 | 0000 |
3/32" | -0.009" to 0.009" | 0.300" | 0000000 | 00000 |
1/8" | -0.01" to 0.01" | 0.120" | 0000000 | 00000 |
3/16" | -0.013" to 0.013" | 0.120" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.120" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.060" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.060" | 0000000 | 00000 |
3/4" | -0.029" to 0.029" | 0.060" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.03" | 0000000 | 00000 |
12" × 24" | ||||
1/32" | -0.008" to 0.008" | 1.200" | 0000000 | 00000 |
1/16" | -0.008" to 0.008" | 0.600" | 0000000 | 00000 |
3/32" | -0.009" to 0.009" | 0.600" | 0000000 | 00000 |
1/8" | -0.01" to 0.01" | 0.240" | 0000000 | 00000 |
3/16" | -0.013" to 0.013" | 0.240" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.240" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.120" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.120" | 0000000 | 00000 |
3/4" | -0.029" to 0.029" | 0.120" | 0000000 | 000000 |
1" | -0.033" to 0.033" | 0.060" | 0000000 | 000000 |
24" × 24" | ||||
1/32" | -0.008" to 0.008" | 1.200" | 0000000 | 00000 |
1/16" | -0.008" to 0.008" | 0.600" | 0000000 | 00000 |
3/32" | -0.009" to 0.009" | 0.600" | 0000000 | 00000 |
1/8" | -0.01" to 0.01" | 0.240" | 0000000 | 00000 |
3/16" | -0.013" to 0.013" | 0.240" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.240" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.120" | 0000000 | 000000 |
1/2" | -0.024" to 0.024" | 0.120" | 0000000 | 000000 |
3/4" | -0.029" to 0.029" | 0.120" | 0000000 | 000000 |
1" | -0.033" to 0.033" | 0.060" | 0000000 | 000000 |
24" × 36" | ||||
1/32" | -0.008" to 0.008" | 1.800" | 0000000 | 00000 |
1/16" | -0.008" to 0.008" | 0.900" | 0000000 | 00000 |
3/32" | -0.009" to 0.009" | 0.900" | 0000000 | 00000 |
1/8" | -0.01" to 0.01" | 0.360" | 0000000 | 00000 |
3/16" | -0.013" to 0.013" | 0.360" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.360" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.180" | 0000000 | 000000 |
1/2" | -0.024" to 0.024" | 0.180" | 0000000 | 000000 |
3/4" | -0.029" to 0.029" | 0.180" | 00000000 | 000000 |
1" | -0.033" to 0.033" | 0.090" | 00000000 | 000000 |
36" × 72" | ||||
1/32" | -0.008" to 0.008" | 3.600" | 0000000 | 000000 |
1/16" | -0.008" to 0.008" | 1.800" | 0000000 | 000000 |
3/32" | -0.009" to 0.009" | 1.800" | 0000000 | 000000 |
1/8" | -0.01" to 0.01" | 0.720" | 0000000 | 000000 |
3/16" | -0.013" to 0.013" | 0.720" | 0000000 | 000000 |
1/4" | -0.015" to 0.015" | 0.720" | 0000000 | 000000 |
3/8" | -0.02" to 0.02" | 0.360" | 0000000 | 000000 |
1/2" | -0.024" to 0.024" | 0.360" | 0000000 | 000000 |
3/4" | -0.029" to 0.029" | 0.360" | 00000000 | 000000 |
1" | -0.033" to 0.033" | 0.180" | 00000000 | 000000 |
48" × 96" | ||||
1/16" | -0.008" to 0.008" | 2.400" | 00000000 | 000000 |
3/32" | -0.009" to 0.009" | 2.400" | 00000000 | 000000 |
1/8" | -0.01" to 0.01" | 0.960" | 00000000 | 000000 |
3/16" | -0.013" to 0.013" | 0.960" | 00000000 | 000000 |
1/4" | -0.015" to 0.015" | 0.960" | 00000000 | 000000 |
3/8" | -0.02" to 0.02" | 0.480" | 00000000 | 000000 |
1/2" | -0.024" to 0.024" | 0.480" | 00000000 | 000000 |
3/4" | -0.029" to 0.029" | 0.480" | 00000000 | 00000000 |
1" | -0.033" to 0.033" | 0.240" | 00000000 | 00000000 |
Thick. | Thick. Tolerance | Flatness Tolerance | Each | |
3" × 36" | ||||
---|---|---|---|---|
1/8" | -0.01" to 0.01" | 0.360" | 0000000 | 000000 |
1/4" | -0.015" to 0.015" | 0.360" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.180" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.180" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.090" | 0000000 | 00000 |
3" × 72" | ||||
1/8" | -0.01" to 0.01" | 0.720" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.720" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.360" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.360" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.180" | 0000000 | 00000 |
6" × 36" | ||||
1/8" | -0.01" to 0.01" | 0.360" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.360" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.180" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.180" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.090" | 0000000 | 00000 |
6" × 72" | ||||
1/8" | -0.01" to 0.01" | 0.720" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.720" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.360" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.360" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.180" | 0000000 | 000000 |
12" × 36" | ||||
1/8" | -0.01" to 0.01" | 0.360" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.360" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.180" | 0000000 | 00000 |
1/2" | -0.024" to 0.024" | 0.180" | 0000000 | 00000 |
1" | -0.033" to 0.033" | 0.090" | 0000000 | 000000 |
12" × 72" | ||||
1/8" | -0.01" to 0.01" | 0.720" | 0000000 | 00000 |
1/4" | -0.015" to 0.015" | 0.720" | 0000000 | 00000 |
3/8" | -0.02" to 0.02" | 0.360" | 0000000 | 000000 |
1/2" | -0.024" to 0.024" | 0.360" | 0000000 | 000000 |
1" | -0.033" to 0.033" | 0.180" | 0000000 | 000000 |