Rubber Sealants | McMaster-Carr

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Electrically Insulating

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1A995

EAR99

DFARS Specialty Metals

Patch Material

1,624 Products

Sealing

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

205 products

Caulk Guns

Cartridge, sausage-pack, and bulk-load caulk guns

6 products

Caulk Gun Nozzles

Attach to caulk guns to change the shape and amount of sealant that's dispensed

1 product

Sealant Primers

Apply to surfaces before sealant to speed up drying times and improve adhesion

3 products

Backer Rods

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

27 products

Gasket Makers

Seal irregular shapes and tiny crevices by applying a bead that hardens into a gasket

9 products

Gasket Tape

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

42 products

Drain Gaskets

Create a watertight seal between your drain and fixture without the mess of plumber's putty

3 products

Fastening and Joining

Instant-Bond Adhesives

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

141 products

Structural Adhesives

Strong enough to replace screws and rivets for many jobs

172 products

Construction Adhesives

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

17 products

Contact Adhesives

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

44 products

Adhesive and Sealant Assortments

A collection of adhesives for routine maintenance and quick repairs

1 product

Glue

The first choice for everyday bonding and repairs

9 products

Footwear Adhesives

Repair rips, split seams, and detached soles to stop leaks in shoes, boots, and waders

1 product

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

4 products

Hot Glue

Melt for rapid bonds in a range of applications, from packaging to woodworking

15 products

Cement Adhesives

Form strong bonds on plastic, rubber, ceramic, and other materials

3 products

Mounting Adhesives

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

29 products

Repair and Duct Tape

Permanently join or seal surfaces

36 products

Masking Tape

Temporarily join or protect surfaces

2 products

Sealing Washers

Prevent fluids from leaking around fasteners

572 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

7 products

Magnet-Receptive Sheets

Cut with scissors to form custom nonmetallic, nonmagnetic surfaces that magnets will stick to

3 products

Electrical Power, Networking, and Controlling

Potting Compounds

Encase electronic assemblies in material that hardens to protect from dust, moisture, and vibration

54 products

Electrically Insulating Adhesives

Secure hardware on circuit boards while insulating current

4 products

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

13 products

Facility and Grounds Maintenance

Protective Coatings

Shield surfaces from the surrounding environment

50 products

Surface Fillers

Repair chips, cracks, and tears in various surfaces

43 products

Paint

Renew, enhance, protect, and change the color of surfaces

6 products

Floor Finish Applicators

Evenly spread coatings, wax, varnish, and oil across floors

16 products

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

2 products

Surface-Preparation Cleaners

Clean and degrease surfaces so paint, coatings, adhesives, and cement will stick

2 products

Roof Coatings

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

5 products

Safety Equipment

Protective Clothing Tape

Patch rips and seal gloves, boots, and respirators to clothing

1 product

Fire Stops

Prevent fire and smoke from passing through holes in fire-resistant walls and floors

3 products

Drum Patches

Patch drum leaks to prevent their contents from spilling

2 products

Building and Machinery Hardware

Protective Film and Tape

Adhere to surfaces to keep them free of scratches, chemicals, moisture, and germs

19 products

Antislip Tape

Add traction to smooth surfaces, such as floors, rollers, and ladder handrails

11 products

Communication

Label-Protecting Tape

Protect labels from moisture, oil, solvents, alkalies, and most acids

5 products

Raw Materials

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

8 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

5 products