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

Seal openings such as those around windows, enclosures, and pipe flanges to prevent leaks

94 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

Contact Adhesives

Apply adhesive, air dry, and bring surfaces together to bond

21 products

Construction Adhesives

Join a wide range of construction materials, from drywall to carpeting

3 products

Instant-Bond Adhesives

Also known as super glue, these adhesives begin to harden in under two minutes

14 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

3 products

Mounting Adhesives

Mount objects with a range of adhesives, including glue-on-a-roll and glue shapes

4 products

Sealing Washers

Prevent fluids from leaking around fasteners

11 products

Mounting Tape

Mount everything from signs and panels to carpet and padding

28 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

Material Handling

Low-Friction Tape

Create a slippery lining to keep parts moving or use as a release surface on heat sealers and molds

2 products