Sealants For Copper | McMaster-Carr

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1,172 Products

Sealing

Sealants

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

102 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

154 products

Sealant Primers

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

1 product

Gasket Makers

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

57 products

Gasket Sealants

Seal gaskets on metal parts

7 products

Fastening and Joining

Adhesives

Bond surfaces together

429 products

Threadlockers

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

111 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

16 products

Retaining Compounds

Fill gaps to bond shafts, bearings, press-fit assemblies, and other cylindrical metal parts

43 products

Magnet-Receptive Sheets

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

3 products

Facility and Grounds Maintenance

Surface Fillers

Repair chips, cracks, and tears in various surfaces

78 products

Protective Coatings

Shield surfaces from the surrounding environment

32 products

Paint

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

8 products

Protective Coating Primers

Prepare metal surfaces for powder coating

2 products

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

1 product

Electrical

Potting Compounds

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

62 products

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

15 products

Solder Mask

Temporarily shield circuit boards from solder, flux, and high temperatures

3 products

Fabricating and Machining

Blackener Kits

Create a flat, black protective finish on metal tools to resist corrosion and reduce glare

1 product