Electronic Sealants | McMaster-Carr

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For Use On

Stainless Steel

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Less than 250° F

250° F to 299° F

300° F to 399° F

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500° F or greater

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Acrylic Plastic

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Protective Coating

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Mixing Required

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For Joining

Metal to Plastic

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REACH

Minimum Temperature

-100° F or less

-99° F to -75° F

-74° F to -50° F

-49° F to -25° F

Greater than -25° F

Material

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Tensile Strength

Less than 1,000 psi

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi to 9,999 psi

10,000 psi or greater

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91 Products

Potting Compounds

Ready-to-Use Silicone Rubber Potting Compounds

Ready-to-Use Silicone Rubber Potting Compounds

No mixing required—these potting compounds come ready to apply

Epoxy Potting Compounds

Epoxy Potting Compounds

Keep out dust, chemicals, moisture, and vibration

Two-Part Silicone Rubber Potting Compounds

Two-Part Silicone Rubber Potting Compounds

Mix the two components to start the curing process

Heat-Transfer Epoxy Potting Compounds

Heat-Transfer Epoxy Potting Compounds

Formulated to draw heat away from sensitive electronic components

High-Temperature Epoxy Potting Compounds

High-Temperature Epoxy Potting Compounds

Protect circuit boards and other electronics where high heat is a concern

Optically Clear Epoxy Potting Compounds

Optically Clear Epoxy Potting Compounds

Light passes through easily for LEDs, solar cells, and fiber optics

Epoxy Potting Compounds for Harsh Environments

Epoxy Potting Compounds for Harsh Environments

Tough enough to be permanently submersed in seawater

Urethane Potting Compounds

Urethane Potting Compounds

The best choice for cold-temperature applications

Flexible Epoxy Potting Compounds

Flexible Epoxy Potting Compounds

Combine the flexibility of silicone with the durability of standard epoxy

Light-Activated Epoxy Potting Compounds

Light-Activated Epoxy Potting Compounds

Dry quickly when exposed to UV light

Light-Activated Silicone Rubber Potting Compounds

Light-Activated Silicone Rubber Potting Compounds

Dry quickly when exposed to UV light and stay softer and more flexible than epoxy

Adjustable-Hardness Heat-Transfer Epoxy Potting Compounds

Adjustable-Hardness Heat-Transfer Epoxy Potting Compounds

Change the mix ratio to achieve the right hardness for your application

Optically Clear Two-Part Silicone Rubber Potting Compounds

Optically Clear Two-Part Silicone Rubber Potting Compounds

Let light pass through while staying softer and more flexible than epoxy and urethane

Reusable Silicone Rubber Potting Compounds

Reusable Silicone Rubber Potting Compounds

Peel off without damaging equipment

Flame-Retardant Epoxy Potting Compounds

Flame-Retardant Epoxy Potting Compounds

Protect circuit boards and other electronics from fire and heat

Heavy Duty Coatings for Electronics

Heavy Duty Coatings for Electronics

Thinner than standard potting compounds to flow into small spaces between components

Low-Outgassing Heat-Transfer Epoxy Potting Compounds

Low-Outgassing Heat-Transfer Epoxy Potting Compounds

Release almost no volatile emissions that could damage sensitive electronics

Light-Activated Urethane Potting Compounds

Light-Activated Urethane Potting Compounds

Cure into a strong protective layer after 20 seconds under a UV light

Low-Outgassing Optically Clear Two-Part Silicone Rubber Potting Compounds

Low-Outgassing Optically Clear Two-Part Silicone Rubber Potting Compounds

Produce almost no volatile emissions while letting light pass through

Urethane Potting Compounds for Harsh Environments

Urethane Potting Compounds for Harsh Environments

Withstand permanent submersion in water—even salt water

Other Products

Structural Adhesives

Structural Adhesives

Strong enough to replace screws and rivets for many jobs

Conformal Coatings

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

Adhesive Dispensing Gun Nozzles

Adhesive Dispensing Gun Nozzles

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)