Composite Boards | McMaster-Carr

Choose a Category

	Thickness Thickness

	Width Width

	Length Length

	Material Material

	Grade Grade

	Color Color

	Black		Yellow
	Brown		Green
	Gray		Red
	White		Off-White
	Beige		Blue

	Performance Properties Performance Properties

Chemical Resistant

Electrical Insulator

High Temperature

Impact Resistant

Low Water Absorption

Weather Resistant

	Backing Type Backing Type


Plain	Adhesive

	For Use Outdoors For Use Outdoors

	Impact Strength Rating Impact Strength Rating

	Texture Texture


Smooth	Coarse

	Maximum Temperature Maximum Temperature

Less than 150° F

150° to 249° F

250° to 299° F

300° to 399° F

400° F or greater

	Tensile Strength Rating Tensile Strength Rating

	Tensile Strength Tensile Strength

6,000-10,000 psi

6,000-15,300 psi

7,000-40,000 psi

8,000-23,900 psi

9,000-21,000 psi

10,000-15,000 psi

18,000-27,700 psi

32,000-40,000 psi

35,000-50,000 psi

37,000-58,600 psi

39,000-63,000 psi

120,000-175,000 psi

	Electrical Insulation Rating Electrical Insulation Rating

	Hardness Rating Hardness Rating

	Reinforcement Material Reinforcement Material

Fabric

	Flexural Strength Flexural Strength

10,000-60,000 psi

14,000-29,300 psi

15,000-19,000 psi

15,400-19,700 psi

16,000-29,000 psi

17,200-23,200 psi

20,900-25,800 psi

23,200-31,000 psi

25,000-34,000 psi

45,000-55,000 psi

45,000-60,000 psi

50,200-60,400 psi

59,600-76,700 psi

89,000-174,000 psi

	Water Absorption Rating Water Absorption Rating

	Density Density

0.043 lbs./cu. in.

0.063 lbs./cu. in.

0.068 lbs./cu. in.

0.069 lbs./cu. in.

0.07 lbs./cu. in.

0.072 lbs./cu. in.

1.7 lbs./cu. in.

0.043-0.05 lbs./cu.
in.

0.045-0.05 lbs./cu.
in.

0.047-0.052 lbs./cu.
in.

0.05-0.067 lbs./cu.
in.

0.058-0.070 lbs./cu.
in.

0.065 lbs./cu.in.

0.069-0.074 lbs./cu.
in.

	Dielectric Strength Dielectric Strength

	Impact Strength Impact Strength

0.35-0.55 ft.-lbs./in.

0.8-1.25 ft.-lbs./in.

1.4-1.7 ft.-lbs./in.

1.8-2.5 ft.-lbs./in.

4-30 ft.-lbs./in.

5.5-9.5 ft.-lbs./in.

5.5-12 ft.-lbs./in.

6.5-19.1 ft.-lbs./in.

7-15.3 ft.-lbs./in.

8.2-12 ft.-lbs./in.

9-22.7 ft.-lbs./in.

12 ft.-lbs./in.

14-17 ft.-lbs./in.

15 ft.-lbs./in.

	Tolerance Rating Tolerance Rating

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About Composites

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Composites

Multipurpose Flame-Retardant
Garolite G-10/FR4 Sheets and Bars

Multipurpose Flame-Retardant Garolite G-10/FR4 Sheets and Bars

A good all-around choice, Garolite G-10/FR4 is strong, machinable, and electrically insulating. It meets UL 94V0 for flame retardance.

Economical Garolite CE Sheets

Economical Garolite CE Sheets

Garolite CE is often fabricated into parts where high strength is not required.

Slippery Conductive Garolite CE

Slippery Conductive Garolite CE

Graphite is added to this Garolite CE to provide a slippery surface that reduces friction and makes this material conductive.

Economical Electrical-Insulating
Garolite XX Sheets and Strips

Economical Electrical-Insulating Garolite XX Sheets and Strips

Stronger than Garolite CE with better electrical-insulating properties, Garolite XX is often fabricated into low-cost electrical components.

Easy-to-Machine Garolite
LE Sheets and Strips

Easy-to-Machine Garolite LE Sheets and Strips

Using nothing more than standard high-speed steel tooling, Garolite LE can be machined into intricate parts.

High-Temperature
Garolite G-11 Sheets

High-Temperature Garolite G-11 Sheets

Offering higher strength and better heat resistance than Garolite G-10/FR4, Garolite G-11 is suitable for continuous use in elevated temperatures.

Ultra-High-Temperature
Arc-Resistant Garolite G-7 Sheets

Ultra-High-Temperature Arc-Resistant Garolite G-7 Sheets

Garolite G-7 sheets have high heat tolerance—they withstand temperatures up to 425° F. While not as strong as Garolite G-9 sheets, they offer better arc resistance in dry environments.

Impact-Resistant Garolite E-Glass

Impact-Resistant Garolite E-Glass

A combination of high impact strength and extreme hardness makes Garolite E-glass very difficult to penetrate. It is often used for machine guards.

Arc-Resistant Garolite G-9 Sheets

Frequently called electrical-grade Garolite, this Garolite G-9 is strong, electrically insulating, and arc resistant in dry environments.

Ultra-High-Temperature
Impact-Resistant Garolite Sheets

Ultra-High-Temperature Impact-Resistant Garolite Sheets

Resisting heavy impacts and temperatures up to 500° F, these Garolite sheets are used in machinery such as turbine bearings and downpipe gaskets.

Halogen-Free Garolite
G-10 Sheets and Bars

Halogen-Free Garolite G-10 Sheets and Bars

Use Garolite G-10 in place of Garolite G-10/FR4 for applications that are sensitive to halogen, such as in nuclear plants. It's strong, machinable, and electrically insulating.

Electrically Conductive
Garolite Glass Carbon

Use this Garolite glass carbon to divert static charges that can damage equipment.

Structural FRP Fiberglass
Sheets, Bars, and Strips

Structural FRP Fiberglass Sheets, Bars, and Strips

An alternative to wood in structural applications, FRP fiberglass is strong and lightweight.

Arc-Resistant GPO3
Fiberglass Sheets and Strips

Arc-Resistant GPO3 Fiberglass Sheets and Strips

Offering excellent arc and track resistance, this GPO3 fiberglass is often used for electrical applications in humid environments.

Flame-Retardant FRP
Fiberglass Sheets and Bars

Flame-Retardant FRP Fiberglass Sheets and Bars

Made with a flame-retardant resin, this FRP fiberglass meets ASTM E84 Class A.

Chemical-Resistant FRP Fiberglass

This FRP fiberglass is made with a chemical-resistant resin that stands up to harsh environments.

Ultra-High-Temperature
High-Strength SG-200 Fiberglass

Ultra-High-Temperature High-Strength SG-200 Fiberglass

SG-200 fiberglass withstands temperatures up to 410° F—higher than any of our other fiberglass raw materials. It’s also stronger than FRP fiberglass and easy to machine.

High-Temperature FRP Fiberglass

With more than twice the heat tolerance of standard FRP fiberglass, this material withstands temperatures up to 370° F.

Ultra-Strength Lightweight
Carbon Fiber Sheets and Bars

The strongest composite we offer, carbon fiber is comparable in strength to 6061 aluminum yet lighter in weight.

Ultra-Strength Lightweight Carbon
Fiber Sheets with Foam Core

A layer of foam is sandwiched between two pieces of carbon fiber to make a featherweight material that's even lighter than standard carbon fiber.

Create-Your-Own Composites

Mold custom-shaped composite parts by layering your choice of fabric with an epoxy.

Easy-to-Machine Hard Fiber Sheets

Easy-to-Machine Hard Fiber Sheets

Hard fiber is the easiest composite to machine, making it good for creating custom parts. Also known as vulcanized fiber.

Electrically Insulating Hard Fiber

Also known as fishpaper.

Wear-Resistant Kevlar Sheets

Wear-Resistant Kevlar Sheets

Kevlar is a super-tough material that stands up to wear and abrasion.

Wood

Synthetic Wood

Get the look of wood without having to worry about splintering or rotting.

Medium Density Fiberboard Sheets

Medium Density Fiberboard Sheets

Also known as MDF, these fiberboard sheets are smoother, denser, and more uniform than real wood.

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Dremel 3D Printer Filaments

Conductive Easy-to-Print 3D Printer Filaments

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)