Fishpaper | McMaster-Carr

	Thickness Thickness

	Width Width

12"

24"

39"

	Length Length

12"

39"

48"

	Performance Properties Performance Properties

	Electrical Insulation Rating Electrical Insulation Rating

Good

Poor

	Dielectric Strength Dielectric Strength

	Specifications Met Specifications Met

Mil. Spec.

UL 94

	Tensile Strength Tensile Strength

9,000-21,000 psi

10,000-21,000 psi

Not Rated

	Tensile Strength Rating Tensile Strength Rating

Good

Not Rated

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Impact Strength Impact Strength

1.8-2.5 ft.-lbs./in.

2.5 ft.-lbs./in.

	Flexural Strength Flexural Strength

13,000-15,000 psi

16,000-29,000 psi

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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31 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.

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

			12" × 12"		24" × 39"		39" × 48"
Thick.	Thick. Tolerance	Tensile Strength		Each		Each		Each
0.005"	-0.001" to 0.001"	9,000-21,000 psi (Good)	0000000	00000	0000000	000000	0000000	000000
0.01"	-0.001" to 0.001"	9,000-21,000 psi (Good)	0000000	0000	0000000	00000	0000000	00000
0.015"	-0.002" to 0.002"	9,000-21,000 psi (Good)	0000000	0000	0000000	00000	0000000	00000
0.02"	-0.002" to 0.002"	Not Rated	0000000	00000	0000000	00000	0000000	00000
0.025"	-0.003" to 0.003"	Not Rated	0000000	00000	0000000	00000	0000000	00000
0.03"	-0.003" to 0.003"	Not Rated	0000000	00000	0000000	00000	0000000	00000
0.04"	-0.004" to 0.004"	Not Rated	0000000	00000	0000000	000000	000000	00
0.045"	-0.005" to 0.005"	Not Rated	0000000	00000	0000000	000000	000000	00
0.062"	-0.007" to 0.007"	10,000-21,000 psi (Good)	0000000	00000	0000000	000000	0000000	000000

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
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
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

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About Composites

Electrically Insulating Hard Fiber

Easy-to-Machine Hard Fiber Sheets