Polyurethane Sealants | McMaster-Carr

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Mixing Required

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Electrically Insulating

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REACH

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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DFARS Specialty Metals

Consistency

591 Products

Sealing

Sealants

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

122 products

Sealant Primers

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

3 products

Facility and Grounds Maintenance

Protective Coatings

Shield surfaces from the surrounding environment

53 products

Surface Fillers

Repair chips, cracks, and tears in various surfaces

32 products

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

2 products

Fastening and Joining

Structural Adhesives

Strong enough to replace screws and rivets for many jobs

128 products

Instant-Bond Adhesives

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

141 products

Construction Adhesives

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

8 products

Adhesive Cement

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

1 product

Contact Adhesives

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

17 products

Glue

The first choice for everyday bonding and repairs

7 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

3 products

Hot Glue

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

13 products

Mounting Adhesives

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

17 products

Electrical Power, Networking, and Controlling

Potting Compounds

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

10 products

Electrically Insulating Adhesives

Secure hardware on circuit boards while insulating current

4 products

Safety Equipment

Drum Patches

Patch drum leaks to prevent their contents from spilling

2 products