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    30 Products

    Ready-to-Use Silicone Rubber Potting Compounds

    Image of Product. Front orientation. Potting Compounds. Ready-to-Use Silicone Rubber Potting Compounds, Cartridge.

    Cartridge

    No mixing required—these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone rubber potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing) compounds because they don’t need heat or UV light to cure.
    UL 94 V-0—Potting compounds that meet UL 94 V-0 have passed a test for flame retardance.
    Container
    Dry Time
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Dielectric Strength,
    V/mil
    Thermal
    Conductivity
    Temp. Range,
    ° F
    Flammability
    Rating
    For Use On
    Color
    Clarity
    Each
    Dow Potting Compounds—Soft
    316510.3CartridgePaste424500Not Rated-45 to 390UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, GlassGrayOpaque8156A17000000
     

    Gasket Tape for Enclosures

    Image of Product. Front orientation. Gasket Tape. Gasket Tape for Enclosures.
    Stick these gaskets around door and vent cutouts, or replace worn seals to maintain your enclosure's NEMA rating. The adhesive backing holds them in place.
    For NEMA 4X—Gaskets for NEMA 4X enclosures protect your enclosure from rain, snow, and washdowns.
    Silicone Foam—Silicone foam gaskets resist temperatures up to 390° F. They meet UL standards for flame retardance.
    For Enclosure
    Rating
    Thk.
    Wd.
    Lg.,
    ft.
    Material
    Cell
    Type
    Temp. Range,
    ° F
    Flammability Rating
    Each
    NEMA 4X
    1/4"3/4"10Silicone FoamClosed-65 to 390UL 94 HF-1, UL 94 V-0
    3641N13000000

    Self-Fusing Rubber Sealing Tape

    Image of Product. Front orientation. Repair and Duct Tape. Self-Fusing, Sealing.
    Bonds to itself for a permanent, watertight seal. This tape has no adhesive, so it won't dry out and crack, which can cause standard tape to fail over time. The rubber backing molds to irregular surfaces and withstands demanding conditions, making this tape a good choice for patching and sealing anything from roofs to pipes.
    Silicone Rubber—Your best choice to repair pipe, this tape withstands harsh chemicals and the widest temperature range. However, it breaks down when exposed to oil, grease, or fuel.
    Max.
    Pressure, psi
    Wd.
    Lg.,
    ft.
    Temp. Range,
    ° F
    Tensile Strength,
    psi
    For
    Fluids
    For
    Gases
    Color
    Flammability
    Rating
    Each
    Silicone Rubber
    1"12-130 to 5001,200150150BlueUL 94 V-0
    5496N11000000
    2"12-130 to 5001,200150150BlueUL 94 V-0
    5496N1200000
     

    Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Aerosol Can.

    Aerosol

    Can

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Bottle.

    Bottle

    Image of Product. Front orientation. Conformal Coatings. Conformal Coatings, Pen.

    Pen

    These coatings protect circuit boards and other electronics from moisture, dust, and static. They’re thinner than potting compounds, so they flow into the smallest contours of your components to cover them completely. Apply these coatings without needing a potting box or other container. You can remove them if necessary.
    Acrylic Plastic—Acrylic plastic coatings are our thinnest option, so they’re the easiest to apply. They’ll also come off the easiest when you have to rework or repair your component—just use a solvent. These coatings dry in a day or less.
    Silicone Rubber—Silicone rubber coatings protect components over a wide range of temperatures. They’re also the most flexible of our conformal coatings, so they won’t crack from vibration. However, they’re thicker than acrylic coatings, so they’re more difficult to apply and remove.
    Silicone/Acrylic Plastic—Silicone/acrylic plastic coatings combine the flexibility and temperature resistance of silicone with the thinness of acrylic for easy application. Use them in the environments you’d use silicone coatings, such as high-vibration and high-temperature areas.
    Urethane Rubber—Urethane rubber coatings are the best choice for harsh environments. They have the best chemical resistance in our offering, and they’re extra hard for the best resistance to scrapes. Plus, they won’t crack in low temperatures. However, they aren’t as flexible as silicone coatings, so they’re worse at handling vibration. They’re also harder to apply than acrylic coatings because they’re thicker.
    Bottle—Coatings in a bottle come with a brush for touch-ups.
    Pen—Coatings in a pen are best for precise application. Use them to repair scratches and chips on components, or touch up areas you missed while coating. They’re also good for blocking off areas you don’t want solder to flow into.
    Ultraviolet—Coatings with ultraviolet visibility show up under a black light, so you can easily check if you’ve applied them evenly.
    IPC-CC-830—Coatings that meet IPC-CC-830 are certified for use on circuit boards.
    UL 94 V-0—Coatings that meet UL 94 V-0 have passed a test for flame retardance.
    Cannot Be Sold To—Coatings that cannot be sold to the listed areas are restricted due to VOCs (volatile organic compounds) regulations.
    Dry Time
    Temperature,
    ° F
    Container
    Size, fl. oz.
    Container
    Net Wt., oz.
    Touch,
    min.
    Overall
    Color
    Visibility
    Dielectric Strength,
    V/mil
    Min.
    Max.
    Specs.
    Met
    Flammability
    Rating
    For Use On
    Cannot Be Sold To
    Each
    Acrylic Plastic
     
    Aerosol Can
    12324 hr.ClearUltraviolet1,000-85250IPC-CC-830UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless SteelOutside United States and Canada6801A39000000
     
    Bottle
    1.81024 hr.ClearUltraviolet1,000-85255IPC-CC-830UL 94 V-0
    PlasticCanada6801A20200000
     
    Pen—0.03" Diameter Tip
    0.161024 hr.ClearUltraviolet1,000-85255IPC-CC-830UL 94 V-0
    PlasticCanada6801A20800000
     
    Silicone Rubber—Hard
     
    Aerosol Can
    126072 hr.ClearUltraviolet1,100-85390IPC-CC-830UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless SteelOutside United States and Canada6801A3700000
     
    Silicone/Acrylic Plastic
     
    Aerosol Can
    12848 hr.ClearUltraviolet1,000-40390UL 94 V-0
    PlasticCanada6801A20400000
     
    Bottle
    1.8848 hr.ClearUltraviolet1,000-40390UL 94 V-0
    PlasticCanada6801A20300000
     
    Pen—0.03" Diameter Tip
    0.161048 hr.ClearUltraviolet1,000-40390UL 94 V-0
    PlasticCanada6801A20600000
     
    Urethane Rubber
     
    Aerosol Can
    121524 hr.ClearUltraviolet380-85255IPC-CC-830UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless SteelOutside North America6801A20100000
     
    Bottle
    1.81530 dayClearUltraviolet1,000-85255IPC-CC-830UL 94 V-0
    Aluminum, Copper, Stainless Steel
    Canada6801A20500000
     

    Flame-Retardant High-Temperature Gasket Makers

    Image of Product. Front orientation. Gasket Makers. Flame-Retardant High-Temperature Gasket Makers.
    Often used to create gaskets in ovens and applications where fire is a concern, these gasket makers meet UL 94 V-0 for flame retardance and withstand temperatures up to 500° F. They replace rubber and other traditional gasket materials for a form-in-place seal and make it easy to form irregular-shaped gaskets. Push the plunger to precisely dispense small amounts.
    Container
    Temperature,
    ° F
    Size, fl.
    oz.
    Type
    Max. Gap
    Size Filled
    Begins to
    Harden, min.
    Reaches Full
    Strength, min.
    Cure Type
    Min.
    Max.
    Color
    For Use On
    Each
    1.700Syringe0.250"530Room Temperature-70500GreenAluminum, Copper, Steel, Stainless Steel, Titanium, Ceramic4485N110000000

    Flame-Retardant Protective Coatings for Metal

    Use these coatings on structural steel beams and pipes. Apply with a brush, roller, or sprayer. The size listed is the combined total of the two parts.
    Epoxy—Can
    Image of Product. Front orientation. Protective Coatings. Flame-Retardant Protective Coatings for Metal.
    Dry
    Time, hr.
    Container
    Size, gal.
    Solution
    Type
    Touch
    Overall
    Approx. Coverage
    @ Thk.
    Mixing
    Req.
    Mix
    Ratio
    Application Time
    After Mixing, hr.
    Max. Temp.,
    ° F
    Application
    Temp. Range, ° F
    Flammability
    Rating
    For Use
    Outdoors
    For Use On
    Color
    Each
    1Water Based848110 ft² @ 15 milYes100:202.530040 to 100UL 94 V-0
    YesAluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Iron, Galvanized Iron, Galvanized Steel, SilverFlat White2557N30000000
     

    Flame-Retardant Epoxy Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.

    Cartridge

    Rated UL 94 for flame retardance, these epoxies self-extinguish within 10 seconds. Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Cartridge—To mix and dispense these adhesives, you'll need a mixer nozzle and dispensing gun.
    Thick Liquid—Flow into narrower gaps than gels and pastes, but thick enough to stay put on uneven surfaces.
    Material Certificate Icon
    Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Container
    Strength
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, hr.
    Shear,
    psi
    Peel, lbf/in.
    wd.
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    Flammability
    Rating
    For Joining
    Each
    3M
     
    Scotch-Weld
    DP100FR1.64Cartridge5481,10021:1Thick Liquid73,750-65 to 300UL 94 V-0
    Metal, Plastic, Rubber7467A28000000
     
    Accessories and Replacements for Structural Adhesives

    Flame-Retardant Epoxy Potting Compounds

    Image of Product. Front orientation. Potting Compounds. Flame-Retardant Epoxy Potting Compounds , Cartridge.
    Image of Product. Front orientation. Potting Compounds. Flame-Retardant Epoxy Potting Compounds , Can.

    Cartridge

    Can

    Protect circuit boards and other electronics from fire and heat. These self-extinguishing compounds meet UL 94V-0 for flame retardance and withstand temperatures up to nearly 400° F. Use them to shield components from dust, moisture, chemicals, mechanical shock, and vibration. Since they’re epoxies, they won’t break down from chemicals or moisture. They’re also excellent electrical insulators. These compounds have the consistency of honey once they’re mixed, so they seep into crevices to encase intricate components.
    Cartridge—Cartridge compounds dispense through a mixer nozzle for precise application. Use them with a dispensing gun.
    Can—Can compounds are easier to apply in high volumes than cartridge compounds. Mix them together and pour them over components inside containers, such as a potting box. If you see air bubbles after mixing, put the mixture in a vacuum chamber to remove them.
    Cannot Be Sold to Canada—These compounds cannot be sold to Canada.
    Dry
    Time, hr.
    Container
    Size
    Consistency
    Touch
    Overall
    Mixer Nozzle
    Included
    Mix
    Ratio
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    Flammability
    Rating
    For Use On
    Cannot Be
    Sold To
    Each
    Cartridge Potting Compounds—Extra Hard
    15.2 fl. oz.Thick Liquid248Yes2:13950.5-110 to 390UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Plastic, Rubber, Composite, Fiberglass, Ceramic, GlassCanada6184N11000000
     
    Can Potting Compounds—Extra Hard
    3 qt.Thick Liquid2482:13950.5-110 to 390UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Plastic, Rubber, Composite, Fiberglass, Ceramic, GlassCanada6184N12000000
     
    Guns

    Flame-Retardant Protective Coatings

    Use these coatings in kitchens, furnace areas, and ships on plastic, metal, wood, and masonry. Apply with a brush, roller, or sprayer. The size listed is the combined total of the two parts.
    Epoxy—Can
    Image of Product. Front orientation. Protective Coatings. Flame-Retardant Protective Coatings.
    Clear—Clear coatings are frequently used on wood—use one coat on sealed wood and two on unsealed. They can be used outside without breaking down, but prolonged exposure to UV light may cause them to yellow.
    White—White coatings are frequently used on walls, ceilings, doors, and stairwells.
    Dry
    Time, hr.
    Container
    Size, gal.
    Solution
    Type
    Touch
    Overall
    Approx. Coverage
    @ Thk.
    Mixing
    Req.
    Mix
    Ratio
    Application Time
    After Mixing, hr.
    Max. Temp.,
    ° F
    Application
    Temp. Range, ° F
    Flammability
    Rating
    For Use
    Outdoors
    For Use On
    Color
    Each
    1Water Based848150 ft² @ 10 milYes100:262.525040 to 100UL 94 V-0
    YesAluminum, Copper, Steel, Stainless Steel, Galvanized Iron, Galvanized Steel, Plastic, Rubber, Composite, Fiberglass, Ceramic, Glass, Masonry, Concrete, Stone, Asphalt, Drywall, WoodGloss Clear2557N20000000
    1Water Based848150 ft² @ 10 milYes100:202.530040 to 100UL 94 V-0
    YesAluminum, Copper, Steel, Stainless Steel, Galvanized Iron, Galvanized Steel, Plastic, Rubber, Composite, Fiberglass, Ceramic, Glass, Masonry, Concrete, Stone, Asphalt, Drywall, WoodGloss White2557N1000000
     

    Component-Concealing Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Component-Concealing Conformal Coatings.
    Hide proprietary information on electrical components while also protecting them from moisture, dust, and static. All it takes is a single thin layer of these black coatings. They’re often used to protect custom parts while prototyping. Place them under a UV curing lamp to fully harden them in just 5 seconds. Made of urethane rubber, they resist chemicals and scratches and won’t crack in low temperatures. That means they’re great for harsh environments. These coatings meet UL 94 V-0 for flame retardance.
    These coatings are thinner than potting compounds, so they flow into the smallest contours to cover your parts completely. They also don’t require a potting box or other container. Dispense these coatings with a gun (sold separately).
    Dry
    Time, sec.
    Container
    Size, fl. oz.
    Consistency
    Touch
    Overall
    Mixing
    Req.
    Dielectric Strength,
    V/mil
    Thermal
    Conductivity
    Temp. Range,
    ° F
    Light Intensity Req.
    to Reach Full Strength
    Cure
    Type
    Flammability
    Rating
    For Use On
    Color
    Each
    Urethane Rubber—Medium
     
    Syringe
    1Thick Liquid55No1,200Not Rated-40 to 3005 sec. @ 50 mW/cm²UV LightUL 94 V-0
    Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Silver, FiberglassBlack6331N11000000
     
    Guns

    High-Temperature Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. High-Temperature Conformal Coatings.
    Even in furnace-like heat, these coatings protect your electronics from moisture, dust, and static. They withstand temperatures up to 270° higher than standard silicone rubber coatings while remaining flexible enough to not crack and peel from vibration. Whether your circuit board is in a hot, humid shop or inside heavy machinery that heats up and vibrates, these coatings keep it protected. Made of silicone, they won’t cloud from humidity.
    They’re thinner than potting compounds, so they flow into the smallest contours of your components to cover them completely. Simply spray these coatings on your device without needing a potting box or other container. They contain a UV indicator, so you can use a blacklight to check if they’ve been applied evenly. You can remove these coatings if necessary.
    These coatings are IPC certified for use with circuit boards. For flame retardance, they meet UL 94 V-0.
    Cannot Be Sold To—They cannot be sold in California or outside North America due to regulatory limits on VOCs.
    Dry Time
    Container
    Net Wt., oz.
    Touch,
    min.
    Overall,
    hr.
    Mixing
    Req.
    Dielectric Strength,
    V/mil
    Temp. Range,
    ° F
    Specs.
    Met
    Flammability
    Rating
    For Use
    Outdoors
    For Use On
    Color
    Visibility
    Cannot Be Sold To
    Each
    Silicone Rubber—Extra Hard
     
    Aerosol Can
    124524No560-40 to 660IPC-CC-830UL 94 V-0
    NoAluminum, Copper, FiberglassClearUltravioletCalifornia, Outside North America6138N11000000
     

    Optically Clear Conformal Coatings

    Image of Product. Front orientation. Conformal Coatings. Optically Clear Conformal Coatings.
    Protect LEDs, solar cells, and fiber optics with a coating that’s clear enough to see through. These coatings let optimal light pass through and repel dust and moisture, so they won’t distort your view of what’s underneath. Made of silicone rubber, they won’t cloud in hot, humid environments. That means they’re great for use outdoors, such as on signs and instrumentation panels. These coatings are thinner than potting compounds, flowing into the smallest contours on your device to cover it completely. Silicone rubber conformal coatings are the most flexible kind of conformal coating, so they won’t crack or peel from vibration. To protect sensitive equipment, these coatings also prevent static discharge.
    Simply spray these coatings on your device without needing a potting box or other container. Since they cure at room temperature, you won’t need UV lights or cure ovens either. You can remove them if necessary.
    These coatings are IPC certified for use with circuit boards. They also meet UL 94 V-0 for flame retardance.
    Cannot Be Sold Outside North America—These coatings cannot be sold outside of North America due to regulatory limits on VOCs (volatile organic compounds).
    Dry Time
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Dielectric Strength,
    V/mil
    Thermal
    Conductivity
    Temp. Range,
    ° F
    Specs.
    Met
    Flammability
    Rating
    For Use On
    Color
    Cannot Be Sold To
    Each
    Silicone Rubber—Hard
     
    Bottle
    19Thin Liquid3072720Not Rated-75 to 390IPC-CC-830UL 94 V-0
    Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Rubber, Composite, Fiberglass, Ceramic, GlassClearOutside North America6402N11000000
     
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