Foam Sealants | McMaster-Carr

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244 Products

Heating, Ventilation, and Air Conditioning

Spray Foam Insulation

Expands to fill in cracks, gaps, and other hollow spaces for a tight seal against drafts and heat

15 products

Foam Insulation Coatings

Shield foam pipe insulation from moisture, UV rays, and ozone

1 product

Sealing

Gasket Tape

Stick in place around doors, enclosures, and vents to create a leak-resistant seal

58 products

Backer Rods

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

35 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

1 product

Fastening and Joining

Adhesives

Bond surfaces together

42 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

3 products

Tape

Bind, seal, and mark surfaces

66 products

Sealing Washers

Prevent fluids from leaking around fasteners

11 products

Facility and Grounds Maintenance

Surface Fillers

Repair chips, cracks, and tears in various surfaces

1 product

Touch-Up Paint Pens

Cover scratches in paint and coatings

2 products

Roof Coatings

Form a water-resistant layer to restore and reinforce your roof

4 products