RTV Silicone Adhesives | McMaster-Carr

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121 Products

Sealants

Silicone Rubber Sealants

Harden at room temperature once applied

44 products

Noncorrosive Silicone Rubber Sealants

Won't discolor copper, brass, or concrete

13 products

Oil-Resistant Sealants

Won't degrade from exposure to oil

3 products

Self-Leveling Silicone Rubber Sealants

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

5 products

Silicone Rubber Sealants with Material Certification

Harden at room temperature once applied

9 products

Structural Silicone Rubber Sealants

Stronger than standard silicone sealants

4 products

Structural Submersible Sealants

The strongest submersible sealants we offer

1 product

Mildew-Resistant Silicone Rubber Sealants

Resist mold and mildew in high-humidity environments

10 products

Structural Oil- and Fuel-Resistant Sealants

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

2 products

Low-Outgassing Silicone Rubber Sealants

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

2 products

Submersible Sealants

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

2 products

Oil- and Fuel-Resistant Sealants

Resist swelling when exposed to oil, fuel, and solvents

2 products

Noncorrosive Silicone Rubber Sealants with Material Certification

Won't discolor copper, brass, or concrete

1 product

Self-Leveling Silicone Rubber Sealants with Material Certification

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

1 product

Caulk

Seal and fill cracks and voids

2 products

Metal- and X-Ray-Detectable Structural Noncorrosive Silicone Rubber Sealants

Locate a piece if it falls in your food line using metal detectors and X-ray machines

1 product

Structural Noncorrosive Silicone Rubber Sealants

Our strongest noncorrosive sealants

3 products

Structural Silicone Rubber Sealants with Material Certification

Stronger than standard silicone sealants

2 products

Glass Sealants

UV-Resistant Glass Sealants

Won't degrade in sunlight

4 products

Structural Glass Sealants

Support glass under heavy loads in equipment and buildings

2 products

HVAC Sealants

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

3 products

Concrete Joint Sealants

High-Strength Concrete Joint Sealants

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

7 products

High-Strength Self-Leveling Concrete Joint Sealants

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

2 products

Other Products

Potting Compounds

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

1 product