Sealers | McMaster-Carr

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2,457 Products

Most Likely Products

Sealants

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

246 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

181 products

Protective Coatings

Shield surfaces from the surrounding environment

140 products

Heat Sealers

Seal bags, packages, and film using heat

24 products

Surface Fillers

Repair chips, cracks, and tears in various surfaces

107 products

All Results

Sealing

Sealants

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

246 products

Thread Sealants

Create a seal between threaded connections to prevent loosening from vibration

181 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

40 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

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

61 products

Gasket Sealants

Seal gaskets on metal parts

7 products

Facility and Grounds Maintenance

Protective Coatings

Shield surfaces from the surrounding environment

140 products

Surface Fillers

Repair chips, cracks, and tears in various surfaces

107 products

Fabric Coatings

Preserve the appearance of fabric by blocking liquids and UV rays

4 products

Paint

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

49 products

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

38 products

Floor Finishes

Add a clear, high-gloss shine to floors

5 products

Leather Conditioners

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

2 products

Leather Lubricants

Extend the life of leather; also known as castor oil

2 products

Touch-Up Paint Pens

Cover scratches in paint and coatings

5 products

Protective Coating Primers

Prepare metal surfaces for powder coating

2 products

Powder Coating Sprayers

Evenly apply powder coatings to small or large parts

2 products

Roof Coatings

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

9 products

Sealant Removers

Clean sealant and caulk off tools and other surfaces

2 products

Grout Floats

Smooth and spread grout between tiles

1 product

Containers, Storage, and Furniture

Heat Sealers

Seal bags, packages, and film using heat

24 products

Open-Top Bags

Close around material with a staple, twist tie, or heat sealer

4 products

Vacuum Sealers

Create an airtight seal around small parts to prevent damage from moisture and oxidation

6 products

Tank Patches

Spin with a handheld electric router to seal holes in plastic tanks and containers

2 products

Fastening and Joining

Adhesives

Bond surfaces together

29 products

Threadlockers

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

112 products

Retaining Compounds

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

43 products

Adhesive Dispensing Gun Nozzles

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

79 products

Tape

Bind, seal, and mark surfaces

773 products

Tape Dispensers

Store and cut lengths of tape

50 products

Magnet-Receptive Sheets

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

3 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

20 products

Electrical

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

27 products

Potting Compounds

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

63 products

Solder Mask

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

4 products

Fabricating and Machining

Firebrick Repair Coatings

Renew heat resistance and performance of worn firebrick

1 product

Blackener Kits

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

6 products

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

1 product

$Refractory Cement$

Refractory Cement

Lay firebricks or set and repair cast iron and steel furnaces, heaters, stoves, and boilers

4 products

Material Handling

Strapping Sealers

Crimp clips onto strapping to hold it tight

23 products

Strapping Tensioners and Sealers

Tighten strapping around packages and seal it in place with a single tool

9 products

Wire Rope Cutting Bands

Prevent fraying while cutting wire rope; also known as seizing bands

7 products

Rope Ends

Prevent unraveling or seal ends that are starting to come apart

9 products

Rope Stops

Keep rope from slipping through pulleys and cleats or add a grip to a pull cord

4 products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

1 product

Heating, Ventilation, and Air Conditioning

Foam Insulation Coatings

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

1 product

Communication

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

6 products

Measuring and Inspecting

Leak-Detecting Dyes

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

1 product

Raw Materials

Pigments and Dyes

Add color to liquids, mixtures, and materials

10 products

Safety Equipment

Drum Patches

Patch drum leaks to prevent their contents from spilling

2 products