Fishpaper Sheets | McMaster-Carr

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62 Products

About Composites

Color: Gray
Max. Temperature: 235° F
Tensile Strength: See Table
Impact Strength: 2.5 ft.-lbs./in. (Good)
Hardness: Rockwell R70 (Hard)
For Use Outdoors: No
Specifications Met: MIL-I-695, UL 94 HB

Widely known as fishpaper and vulcanized fiber, these thin sheets offer better electrical insulation than standard hard fiber sheets. They are constructed from lightweight cotton fabric that's been chemically treated to make it hard and dense.

6" × 12"
Thick.	Thick. Tolerance	Tensile Strength		Each
0.005"	-0.001" to 0.001"	Not Rated	00000000	00000
0.01"	-0.001" to 0.001"	Not Rated	00000000	0000
0.015"	-0.002" to 0.002"	Not Rated	00000000	0000
0.02"	-0.002" to 0.002"	Not Rated	00000000	0000
0.025"	-0.003" to 0.003"	Not Rated	00000000	00000
0.03"	-0.003" to 0.003"	Not Rated	00000000	00000
0.04"	-0.004" to 0.004"	Not Rated	00000000	00000
0.045"	-0.005" to 0.005"	Not Rated	00000000	00000
12" × 12"
0.005"	-0.001" to 0.001"	Not Rated	0000000	0000
0.01"	-0.001" to 0.001"	Not Rated	0000000	0000
0.015"	-0.002" to 0.002"	Not Rated	0000000	0000
0.02"	-0.002" to 0.002"	Not Rated	0000000	00000
0.025"	-0.003" to 0.003"	Not Rated	0000000	00000
0.03"	-0.003" to 0.003"	Not Rated	0000000	00000
0.04"	-0.004" to 0.004"	Not Rated	0000000	00000
0.045"	-0.005" to 0.005"	Not Rated	0000000	00000
0.062"	-0.007" to 0.007"	10,000-21,000 psi (Good)	0000000	00000
24" × 39"
0.005"	-0.001" to 0.001"	Not Rated	0000000	00000
0.01"	-0.001" to 0.001"	Not Rated	0000000	00000
0.015"	-0.002" to 0.002"	Not Rated	0000000	00000
0.02"	-0.002" to 0.002"	Not Rated	0000000	00000
0.025"	-0.003" to 0.003"	Not Rated	0000000	00000
0.03"	-0.003" to 0.003"	Not Rated	0000000	00000
0.04"	-0.004" to 0.004"	Not Rated	0000000	000000
0.045"	-0.005" to 0.005"	Not Rated	0000000	000000
0.062"	-0.007" to 0.007"	10,000-21,000 psi (Good)	0000000	000000
39" × 48"
0.005"	-0.001" to 0.001"	Not Rated	0000000	00000
0.01"	-0.001" to 0.001"	Not Rated	0000000	00000
0.015"	-0.002" to 0.002"	Not Rated	0000000	00000
0.02"	-0.002" to 0.002"	Not Rated	0000000	00000
0.025"	-0.003" to 0.003"	Not Rated	0000000	000000
0.03"	-0.003" to 0.003"	Not Rated	0000000	00000
0.062"	-0.007" to 0.007"	10,000-21,000 psi (Good)	0000000	000000
39" × 60"
0.01"	-0.001" to 0.001"	Not Rated	00000000	00000
0.015"	-0.002" to 0.002"	Not Rated	00000000	00000

Easy-to-Machine Hard Fiber Sheets

Color: Gray
Max. Temperature: 235° F
Tensile Strength: 9,000-21,000 psi (Good)
Impact Strength: 1.8-2.5 ft.-lbs./in. (Good)
Hardness: See table
For Use Outdoors: No
Specifications Met: See table

Also known as vulcanized fiber, these hard fiber sheets can be readily machined and punched into custom parts. They're constructed from lightweight cotton fabric that's been chemically treated to make them hard and dense. Use hard fiber to make gears and bushings.

For technical drawings and 3-D models, click on a part number.

12" × 12"
Thick.	Thick. Tolerance	Hardness	Specifications Met		Each
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	000000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
24" × 39"
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	00000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
39" × 48"
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	00000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695, UL 94 HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	000000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336, MIL-F-1148, UL 94 HB	0000000	00000000

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About Composites

Electrically Insulating Hard Fiber

Easy-to-Machine Hard Fiber Sheets