Sealants | McMaster-Carr

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Type

Manufacturer Model Number

Formulation

Calcium Sulfate (Gypsum)

Methyl Isobutyl Ketone (MIBK)

Reaches Full Strength

Mixing Required

Begins to Harden

Performance

Electrically Insulating

Clarity

Material

Calcium Sulfate (Gypsum)

Minimum Temperature

Hardness Rating

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

DFARS Specialty Metals

4,189 Products

Sealing

Sealants

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

262 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

184 products

Caulk Guns

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

40 products

Caulk Gun Nozzles

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

12 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

Backer Rods

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

35 products

Gasket Makers

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

60 products

Gasket Sealants

Seal gaskets on metal parts

12 products

Gasket Tape

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

94 products

Drain Gaskets

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

3 products

Fastening and Joining

Instant-Bond Adhesives

Also known as super glue, these adhesives begin to harden in under two minutes

157 products

Structural Adhesives

Strong enough to replace screws and rivets for many jobs

204 products

Threadlockers

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

167 products

Cartridge Sealing Caps

Slip over the tips of adhesive and sealant cartridges to keep contents from hardening

1 product

Adhesive Dispensing Gun Nozzles

Pair with cartridges in dispensing guns to control the flow of adhesive

75 products

Adhesive Dispensing Gun Cartridges

Fill and then mount in dispensing guns to apply adhesives to surfaces

34 products

Tube Dispensers

Squeeze all the contents out of tubes

2 products

Glue Guns

Melt and dispense hot-melt glue

19 products

Construction Adhesives

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

19 products

Adhesive Accelerators

Speed up the time it takes adhesives to reach full strength

12 products

Contact Adhesives

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

53 products

Glue

The first choice for everyday bonding and repairs

29 products

Cement Adhesives

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

22 products

Adhesive and Sealant Assortments

A collection of adhesives for routine maintenance and quick repairs

1 product

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

19 products

Retaining Compounds

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

80 products

Hot Glue

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

24 products

Footwear Adhesives

Repair rips, split seams, and detached soles to stop leaks in shoes, boots, and waders

1 product

Anchoring Adhesives

Permanently set threaded rods, studs, and rebar in concrete

12 products

Mounting Adhesives

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

65 products

Repair and Duct Tape

Permanently join or seal surfaces

81 products

Masking Tape

Temporarily join or protect surfaces

9 products

Mounting Tape

Mount everything from signs and panels to carpet and padding

28 products

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

7 products

Magnet-Receptive Sheets

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

3 products

Solder Mask

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

4 products

Facility and Grounds Maintenance

Surface Fillers

Repair chips, cracks, and tears in various surfaces

195 products

Protective Coatings

Shield surfaces from the surrounding environment

152 products

Paint

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

85 products

Wood Stains

Refresh and protect the appearance of wood surfaces by staining and sealing them

1 product

Wood Stain Pens

Touch up nicks and scratches on wood

1 product

Fabric Coatings

Preserve the appearance of fabric by blocking liquids and UV rays

4 products

Touch-Up Paint Pens

Cover scratches in paint and coatings

5 products

Powder Coating Sprayers

Evenly apply powder coatings to small or large parts

6 products

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

37 products

Leather Conditioners

Recondition, waterproof, and preserve leather; also known as neatsfoot oil

2 products

Floor Finish Applicators

Evenly spread coatings, wax, varnish, and oil across floors

23 products

Leather Lubricants

Extend the life of leather; also known as castor oil

2 products

Protective Coating Primers

Prepare metal surfaces for powder coating

2 products

Roof Brushes

Apply thick roof coatings and patches

1 product

Roof Coatings

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

9 products

Surface-Preparation Cleaners

Clean and degrease surfaces so paint, coatings, adhesives, and cement will stick

10 products

Sealant Removers

Clean sealant and caulk off tools and other surfaces

2 products

Plumber's Putty

Mold into a watertight, removable seal around faucets and drains

3 products

Seam Rollers

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

7 products

Drywall Tape

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

2 products

Electrical

Potting Compounds

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

64 products

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

29 products

Electrically Insulating Adhesives

Secure hardware on circuit boards while insulating current

24 products

Thermal Control Coatings

Give off almost no volatile emissions that could damage sensitive electronics and optics

1 product

Conductive Adhesives

Bond electrical components and repair circuits

8 products

Heating, Ventilation, and Air Conditioning

Spray Foam Insulation

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

15 products

Foam Insulation Coatings

Shield foam pipe insulation from moisture, UV rays, and ozone

1 product

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

8 products

Fabricating and Machining

Zinc-Plating Kits

Create your own zinc-plating system to add corrosion resistance to steel and iron parts

3 products

Anodizing Kits

Coat aluminum parts for added resistance to corrosion and chemicals

5 products

Blackener Kits

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

13 products

Polish

Clean, shine, and protect hard surfaces

2 products

Safety Equipment

Protective Clothing Tape

Patch rips and seal gloves, boots, and respirators to clothing

1 product

Fire Stops

Prevent fire and smoke from passing through holes in fire-resistant walls and floors

59 products

Drum Patches

Patch drum leaks to prevent their contents from spilling

2 products

Raw Materials

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

10 products

Pigments and Dyes

Add color to liquids, mixtures, and materials

8 products

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

2 products

Fluid Handling

Thermal Paste

Mold heat cable to pipe, eliminating air gaps that lead to heat loss and heater failure

18 products

Material Handling

Tire Repair Kits

Temporarily patch holes in leaking tires

3 products

Tire Sealants

Prevent tire punctures or plug them on the spot

6 products

Low-Friction Tape

Create a slippery lining to keep parts moving or use as a release surface on heat sealers and molds

629 products

Heat-Shrink Wrap

Heat to seal packages or cure composite parts

6 products

Building and Machinery Hardware

Protective Film and Tape

Adhere to surfaces to keep them free of scratches, chemicals, moisture, and germs

64 products

Antislip Tape

Add traction to smooth surfaces, such as floors, rollers, and ladder handrails

11 products

Measuring and Inspecting

Leak-Detecting Dyes

Bright colors help you spot leaks in water and hydraulic systems without using ultraviolet light

2 products

Communication

Floor-Decal-Protecting Tape

Protect floor labels from heavy foot and vehicle traffic

2 products

Label-Protecting Tape

Protect labels from moisture, oil, solvents, alkalies, and most acids

5 products