Joint Sealants | McMaster-Carr

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Calcium Sulfate (Gypsum)

Methyl Isobutyl Ketone (MIBK)

Neoprene Cement

Parachlorobenzotrifluoride (PCBTF)

Begins to Harden

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Reaches Full Strength

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Calcium Sulfate (Gypsum)

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Compliant

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DFARS Specialty Metals

Exempt

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1,038 Products

Sealing

Sealants

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

263 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

184 products

Backer Rods

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

35 products

Caulk Gun Nozzles

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

12 products

Caulk Guns

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

40 products

Sealant Primers

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

9 products

Backer Rod Insertion Tools

Quickly set foam backer rods in caulk joints at a consistent depth without puncturing them

2 products

Gasket Tape

Stick in place around doors, enclosures, and vents to create a leak-resistant seal

58 products

Gasket Sealants

Seal gaskets on metal parts

7 products

Gasket Makers

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

60 products

Facility and Grounds Maintenance

Surface Fillers

Repair chips, cracks, and tears in various surfaces

197 products

Wallpaper Brushes

Spread on paste and smooth wrinkles to mount wallpaper

2 products

Seam Rollers

Press down the seams where wall coverings meet for a smooth, continuous appearance

7 products

Drywall Patches

Stick over holes in drywall and cover with drywall compound for quick repairs

3 products

Drywall Tape

Apply to seams and corners before spreading drywall compound for a finished appearance

2 products

Drywall Compound Hawks

Carry drywall compound in one hand so you can apply it with the other

1 product

Drywall Compound Mashers

Mix drywall compound in large containers

1 product

Sealant Removers

Clean sealant and caulk off tools and other surfaces

1 product

Masonry Brushes

Sweep away hardened flecks of mortar, dirt, and other debris

1 product

Stakes

Anchor objects to the ground and mark off areas

8 products

Brooms

Sweep up dust, dirt, and other debris

1 product

Trowels

Spread and scrape mortar, concrete, drywall, and adhesives

9 products

Grout Floats

Smooth and spread grout between tiles

1 product

Concrete Floats

Smooth the surface of concrete and release trapped air and water

3 products

Brick Jointers

Rub along the mortar between bricks for a uniform, finished appearance

1 product

Concrete Groovers

Add grooves to stop concrete slabs from cracking as they dry, settle, or freeze

1 product

Concrete Edgers

Create a rounded, finished-looking edge on poured concrete slabs

1 product

Concrete Curing Vibrators

Increase the strength of concrete mix by shaking trapped air loose

1 product

Concrete Rakes

Push, pull, and level freshly poured concrete

1 product

Asphalt Rakes

Spread and level asphalt

2 products

Concrete Mixing Hoes

Mix concrete, mortar, or plaster; also known as mortar hoes

3 products

Fastening and Joining

Tape

Bind, seal, and mark surfaces

18 products

Adhesives

Bond surfaces together

36 products

Fabricating and Machining

Circle Cutters

Create circular openings in drywall for pipes, conduit, and light fixtures

1 product

Drywall Knives

Smoothly spread drywall compounds and also scrape off paint and debris

11 products

Containers, Storage, and Furniture

Concrete Mixing Boxes

Mix concrete in seamless boxes that won't crack or leak

2 products

Drywall Compound Pans

Mix small batches of drywall compound and bring them to your work area; also known as mud pans

1 product