PVC Plastic Putty | McMaster-Carr

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Fixmaster Epoxy

Fixmaster Poxy Pak™

Fixmaster Underwater Repair Epoxy

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169 Products

About Sealant Flexibility

Surface Fillers

These surface fillers can be used on vertical surfaces without sagging. They repair cracked, worn, and damaged surfaces.

Surface Filler Patches

Knead the epoxy-coated patch and resin together to make repairs to pipes, tanks, drums, and containers in the field.

Light-Activated Surface Fillers

Press these putty surface fillers in place to fill in holes, cracks, and dents. When exposed to sunlight or a UV lamp, they begin to harden immediately.

Water-Resistant Surface Fillers

Mix these two-part epoxy surface fillers to create a strong repair in wet environments or underwater.

Water-Resistant Surface Filler Kits

Everything you need to repair cracked, worn, and damaged surfaces—even underwater.

Coolant-Resistant Surface Fillers

Repair small leaks and cracks in coolant tanks for commercial vehicles and industrial equipment. These surface fillers meet ASTM D3147 for their ability to stop leaks in engine cooling systems.

Fuel-Resistant Surface Fillers

Also known as sloshing compounds, these surface fillers bond to rough, rusty surfaces in fuel tanks to repair leaks and prevent further corrosion.

Surface Fillers for Plastic

Use these two-part fillers to rebuild cracked or worn plastic surfaces.

Epoxy Structural Adhesives

Epoxies are the strongest and most weather- and chemical-resistant structural adhesives. They work especially well on metals.

Waterproof Epoxy Structural Adhesives

Even when used under water, these adhesives maintain their strength.

Quick-Set Epoxy Structural Adhesives

For quick repairs, these epoxies begin to harden in 6 minutes or less.

Sealants

Non-Hardening Caulk

Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.

Caulk

Caulking Tape

Press this adhesive-backed plastic tape into place for an immediate light-duty seal.

Silicone Sealants

Made from silicone, these sealants are RTV (room-temperature vulcanizing).

Silicone Sealants with Material Certification

These sealants include a material certificate with traceable lot number, test report, and product shelf life.

Self-Leveling Silicone Sealants
with Material Certification

These sealants include a material certificate with traceable lot number, test report, and product shelf life.

Self-Leveling Silicone Sealants

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

Low-Outgassing Silicone Sealants

Tested to meet ASTM E595, a standard used by NASA, these sealants fill joints and seams while releasing almost no volatile emissions that could damage sensitive electronics, even in a vacuum.

Noncorrosive Silicone Sealants

Also known as neutral-cure sealants, these won't discolor copper, brass, and concrete.

Noncorrosive Silicone Sealants
with Material Certification

This sealant includes a material certificate with traceable lot number, test report, and product shelf life.

Membrane Sealants

Keep water out of single-ply PVC or TPO plastic membranes with these self-leveling sealants.

All-Weather Application Sealants

Apply these sealants in cold temperatures, on wet surfaces, and even through running water.

Optically Clear All-Weather Application Sealants

Clear enough to read through, this UV-resistant sealant allows optimal light transmission for use with solar cells and fiber optics.

Clean Room Sealants

Meeting requirements for semiconductor, biomedical, and electronics clean rooms, these sealants won’t contaminate air and surfaces.

Sealants

Puncture-Resistant Sealants

A combination of hardness and surface tension makes these sealants resistant to punctures, cuts, and abrasion.

All-Weather Application Structural Sealants

Apply these sealants in cold temperatures, on wet surfaces, and even through running water.

Structural Sealants

These structural sealants combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility.

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

With chemical and metal additives that are picked up by X-ray machines and metal detectors, these sealants are designed to help you comply with Hazard Analysis and Critical Control Point (HACCP) programs in food-processing facilities.

Structural Silicone Sealants
with Material Certification

These sealants include a material certificate with traceable lot number, test report, and product shelf life.

Submersible Sealants

These sealants are marine grade, so they stand up to water, corrosion from salt spray, mildew, and UV light.

Self-Leveling Oil- and Fuel-Resistant Sealants

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

Oil- and Fuel-Resistant Sealants

These non-sagging sealants will not drip while hardening on vertical and overhead surfaces.

Structural Oil- and Fuel-Resistant Sealants

Impervious to the swelling effects of oil, fuel, and solvents, use these high-strength sealants to assemble and repair fuel systems and tanks.

Concrete Joint Sealants

High-Strength Self-Leveling Concrete Joint Sealants

Thinner than non-sag sealants, these flow easily into cracks and have a smooth finish.

High-Strength Concrete Joint Sealants

These non-sagging sealants will not drip while hardening on vertical and overhead surfaces.

Concrete Joint Sealants

Seal joints and gaps in concrete.

All-Weather Application Concrete Joint Sealants

These non-sagging sealants will not drip while hardening on vertical and overhead surfaces.

Self-Leveling All-Weather
Application Concrete Joint Sealants

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

UV-Resistant Glass Sealants

These sealants don't degrade in sunlight.

Compression Seal Tape

Wrap this tape tightly around pipe and other surfaces to seal cracks and joints without having to shut down your system.

Roof Joint Sealants

Self-Leveling Roof Joint Sealants

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

Roof Joint Sealants

These sealants are non-sagging, so they won't drip from vertical and overhead surfaces.

All-Weather Application Roof Joint Sealants

Fix roof leaks in cold and wet conditions. These sealants can even be applied underwater.

Edge Sealants

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