Joint Sealants | McMaster-Carr

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Calcium Sulfate (Gypsum)

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For Use Outdoors

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Type

Performance

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Mixing Required

Formulation

Calcium Sulfate (Gypsum)

Methyl Isobutyl Ketone (MIBK)

Neoprene Cement

Parachlorobenzotrifluoride (PCBTF)

Petrolatum

Plaster

Plastic

Reaches Full Strength

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Compliant with Exemptions

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

Yes

Export Control Classification Number (ECCN)

1C995

EAR99

DFARS Specialty Metals

Shape

1,098 Products

Sealing

Sealants

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

276 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

179 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

Backer Rod Insertion Tools

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

2 products

Sealant Primers

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

9 products

Caulk Guns

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

62 products

Gasket Tape

Seal openings such as those around windows, enclosures, and pipe flanges to prevent leaks

94 products

Gasket Sealants

Seal gaskets on metal parts

11 products

Gasket Makers

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

58 products

Facility and Grounds Maintenance

Surface Fillers

Repair chips, cracks, and tears in various surfaces

225 products

Wallpaper Brushes

Spread on paste and smooth wrinkles to mount wallpaper

2 products

Masonry Brushes

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

1 product

Grout Floats

Smooth and spread grout between tiles

1 product

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 Rakes

Push, pull, and level freshly poured concrete

1 product

Asphalt Rakes

Spread and level asphalt

2 products

Trowels

Spread and scrape mortar, concrete, drywall, and adhesives

10 products

Concrete Floats

Smooth the surface of concrete and release trapped air and water

4 products

Concrete Curing Vibrators

Increase the strength of concrete mix by shaking trapped air loose

1 product

Concrete Mixing Hoes

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

3 products

Drywall Compound Hawks

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

1 product

Drywall Tape

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

3 products

Drywall Compound Mashers

Mix drywall compound in large containers

1 product

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

Sealant Removers

Clean sealant and caulk off tools and other surfaces

1 product

Brooms

Sweep up dust, dirt, and other debris

2 products

Stakes

Anchor objects to the ground

10 products

Fastening and Joining

Repair and Duct Tape

Permanently join or seal surfaces

45 products

Instant-Bond Adhesives

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

25 products

Construction Adhesives

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

2 products

Contact Adhesives

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

9 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