Black Sealants | McMaster-Carr

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818 Products

Sealing

Sealants

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

Thread Sealants

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

Sealant Primers

Sealant Primers

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

Backer Rods

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

Gasket Makers

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

Gasket Sealants

Gasket Sealants

Seal gaskets on metal parts

Drain Gaskets

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

Facility and Grounds Maintenance

Protective Coatings

Protective Coatings

Shield surfaces from the surrounding environment

Surface Fillers

Surface Fillers

Repair chips, cracks, and tears in various surfaces

Paint

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

Touch-Up Paint Pens

Touch-Up Paint Pens

Cover scratches in paint and coatings

Protective Coating Primers

Protective Coating Primers

Prepare metal surfaces for powder coating

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

Roof Coatings

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

Fastening and Joining

Adhesives

Bond surfaces together

Threadlockers

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

Tape

Bind, seal, and mark surfaces

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Magnet-Receptive Sheets

Magnet-Receptive Sheets

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

Heating, Ventilation, and Air Conditioning

Spray Foam Insulation

Spray Foam Insulation

Expands to fill in cracks, gaps, and other hollow spaces for a tight seal against drafts and heat

Electrical

Potting Compounds

Potting Compounds

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

Conformal Coatings

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

Fabricating and Machining

Blackener Kits

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

Raw Materials

Pigments and Dyes

Pigments and Dyes

Add color to liquids, mixtures, and materials

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)