3M Sealants | McMaster-Carr

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271 Products

Sealing

Sealants

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

34 products

Sealant Primers

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

3 products

Fastening and Joining

Structural Adhesives

Epoxy, acrylic, urethane, and other adhesives strong enough to replace screws and rivets

63 products

Instant-Bond Adhesives

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

17 products

Contact Adhesives

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

29 products

Mounting Adhesives

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

54 products

Hot Glue

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

9 products

Adhesive Accelerators

Speed up the time it takes adhesives to reach full strength

1 product

Threadlockers

Coat threads on threaded fasteners to prevent loosening from impact and vibration

14 products

Glue

The first choice for everyday bonding and repairs

2 products

Adhesive Dispensing Gun Nozzles

Pair with cartridges in dispensing guns to control the flow of adhesive

5 products

Glue Guns

Melt and dispense hot-melt glue

4 products

Repair and Duct Tape

Permanently join or seal surfaces

1 product

Masking Tape

Temporarily join or protect surfaces

1 product

Electrical Power, Networking, and Controlling

Potting Compounds

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

13 products

Building and Machinery Hardware

Protective Film and Tape

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

15 products

Facility and Grounds Maintenance

Fabric Coatings

Preserve the appearance of fabric by blocking liquids and UV rays

1 product

Material Handling

Low-Friction Tape

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

18 products