Foam Bars | McMaster-Carr

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2,762 Products

Raw Materials

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

2,648 products

Plastic

A lightweight alternative to metal and glass

41 products

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

1 product

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

8 products

Sealing

Backer Rods

Insert into gaps before caulking to reduce how much sealant you need and improve adhesion

35 products

Fabricating and Machining

Prototyping Foam

Carve, mill, or sand into lightweight parts for testing

27 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

2 products