Sealants For Fiberglass | McMaster-Carr

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383 Products

Sealants

Structural Sealants

Combine the strength of adhesive with the flexibility of sealant

14 products

Silicone Rubber Sealants

Harden at room temperature once applied

6 products

Self-Leveling Oil- and Fuel-Resistant Sealants

Flow easily into cracks for a smooth finish and resist swelling from oil, fuel, and solvents

5 products

Clean Room Sealants

Won't contaminate the air or surfaces in semiconductor, biomedical, and electronics clean rooms

1 product

All-Weather Application Structural Sealants

The strongest all-weather sealants we offer

6 products

Oil- and Fuel-Resistant Sealants

Resist swelling when exposed to oil, fuel, and solvents

3 products

Sealants

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

5 products

Noncorrosive Silicone Rubber Sealants

Won't discolor copper, brass, or concrete

4 products

Submersible Sealants

Stand up to water, salt spray, mildew, and UV light

6 products

All-Weather Application Sealants

Apply on wet surfaces and in cold temperatures

5 products

Mildew-Resistant Silicone Rubber Sealants

Resist mold and mildew in high-humidity environments

5 products

Structural Submersible Sealants

The strongest submersible sealants we offer

4 products

Optically Clear All-Weather Application Sealants

Apply in cold and wet weather and let light pass through for use with solar cells and fiber optics

1 product

Caulking Tape

Press into place for an immediate, light duty seal

1 product

Low-Outgassing Silicone Rubber Sealants

Release almost no volatile emissions that could damage sensitive electronics, even in a vacuum

1 product

Structural Oil- and Fuel-Resistant Sealants

Our strongest oil- and fuel-resistant sealants for assembling and repairing fuel systems and tanks

2 products

Optically Clear Sealants

Let light pass through for use with solar cells and fiber optics

1 product

Puncture-Resistant Sealants

Resist punctures, cuts, and abrasion from heavy wear and tampering

4 products

Non-Hardening Caulk

Stays pliable while keeping out moisture

1 product

Caulk

Seal and fill cracks and voids

2 products

Create-a-Color Caulk

Mix with water-based paint to match the color of your surface

2 products

Roof Joint Sealants

Self-Leveling Roof Joint Sealants

Thinner than non-sagging roof joint sealants to flow easily into cracks for a smooth finish

3 products

Roof Joint Sealants

Seal roof joints to keep out the elements

2 products

All-Weather Application Roof Joint Sealants

Fix roof leaks even in cold and wet weather

1 product

Concrete Joint Sealants

High-Strength Self-Leveling Concrete Joint Sealants

Flow easily into cracks for a smooth finish and withstand wear and tear in high-traffic areas

10 products

High-Strength Concrete Joint Sealants

Stand up to heavy wear and tear, such as steel wheel traffic

7 products

All-Weather Application Concrete Joint Sealants

Apply on wet surfaces and in cold temperatures

2 products

Self-Leveling All-Weather Application Concrete Joint Sealants

Apply in wet and cold weather and flow easily into cracks for a smooth finish

2 products

$Textured Concrete Joint Sealants$

Textured Concrete Joint Sealants

Textured to match concrete surfaces

2 products

Glass Sealants

UV-Resistant Glass Sealants

Won't degrade in sunlight

1 product

Impact-Resistant Structural Glass Sealants

Withstand impact within hours of application for repairing vehicle and equipment windows

4 products

Edge Sealants

Prevent the edges of tape, signs, and graphics from peeling by sealing out water and debris

2 products

HVAC Sealants

Form water-resistant seals on metal, plastic, and rubber joints in HVAC applications

1 product

Other Products

Structural Adhesives

Strong enough to replace screws and rivets for many jobs

65 products

Surface Fillers

Repair chips, cracks, and tears in various surfaces

37 products

Protective Coatings

Shield surfaces from the surrounding environment

21 products

Potting Compounds

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

37 products

Gasket Sealants

Seal gaskets on metal parts

4 products

Sealant Primers

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

3 products

Surface-Preparation Cleaners

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

2 products

Instant-Bond Adhesives

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

19 products

Contact Adhesives

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

18 products

Construction Adhesives

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

6 products

Adhesive Primers

Prepare surfaces before adding adhesives to improve bonding strength

6 products

Magnet-Receptive Sheets

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

3 products

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

12 products

Glue

The first choice for everyday bonding and repairs

1 product

Hot Glue

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

1 product

Mounting Adhesives

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

2 products

Paint

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

2 products

Sealant Removers

Clean sealant and caulk off tools and other surfaces

1 product

Paint Primers

Extend the life of paint and coatings by preparing surfaces beforehand

11 products