Sealing Foam | McMaster-Carr

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3,220 Products

Sealing

Gasket Tape

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

42 products

EMI/RFI Shielding Gaskets

Fit around enclosure doors or data connectors to prevent inaccurate signals and flickering displays

110 products

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

46 products

Made-to-Order Gaskets

Send your exact specifications to get gaskets that fit precisely between surfaces

4 products

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

297 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

Backer Rod Insertion Tools

Quickly set foam backer rods in caulk joints at a consistent depth without puncturing them

2 products

Raw Materials

Foam

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

1,551 products

Building and Machinery Hardware

Edge Trim

Install on panels, boards, signs, and mirrors to protect edges from impact

16 products

Surface Guards

Protect walls and other flat surfaces from impact

19 products

Corner Guards

Shield corners on walls and other surfaces from impact

14 products

Vibration-Damping Sheets and Tape

Stick to vibrating surfaces such as duct, between parts, or on floor joists to reduce noise

8 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

18 products

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

539 products

Foam Insulation Coatings

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

1 product

Fastening and Joining

Mounting Tape

Mount everything from signs and panels to carpet and padding

422 products

Masking Tape

Temporarily join or protect surfaces

1 product

Sealing Washers

Prevent fluids from leaking around fasteners

11 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

3 products

Instant-Bond Adhesives

Also known as super glue, these adhesives create strong bonds in under 90 seconds

14 products

Mounting Adhesives

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

5 products

Construction Adhesives

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

3 products

Contact Adhesives

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

16 products

Facility and Grounds Maintenance

Toilet Sealing Rings

Prevent leaks where toilets mount to the floor or wall

1 product

Surface Fillers

Repair chips, cracks, and tears in various surfaces

1 product

Roof Coatings

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

5 products

Material Handling

Dock Door Seals

Close the gap between dock doors and trailers to keep heated or cooled air in and dust out

9 products

Low-Friction Tape

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

20 products