Chemicals, Sealants & Silicone

Our chemicals, sealants, and silicone products are engineered for demanding automotive and marine applications. Designed to withstand heat, vibration, friction, and pressure, these formulas provide long-lasting seals and bonds for gaskets, sensors, housings, and more. Whether you're sealing engine components or performing routine maintenance, these high-performance solutions meet OE-level durability and compatibility standards for professional results.

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15 products

  • Dynatex Brake System Silicone Lubricant Compound 5.3 Oz. Tube - Boxed

    Brake System Silicone Lubricant Compound - 5.3 oz Tube - 1 to 12 Pack - Made in USA

    Brake System Silicone Lubricant Compound is a 100% silicone-based formula engineered to protect rubber and plastic components from...

    $15.99 USD
    $15.99 USD
  • DYNAGREY SILICONE GASKET MAKER - 85g

    DYNAGREY SILICONE GASKET MAKER - 85g

    Dynatex® DynaGrey® is a low odor, sensor safe, non-corrosive silicone gasketing compound. Designed for high torque applications. Remains...

    $5.95 USD
    $5.95 USD
  • DYNABLACK SILICONE GASKET MAKER - 85g

    DYNABLACK SILICONE GASKET MAKER - 85g

    Dynatex® DynaBlack® is a low odor, sensor safe, non-corrosive RTV form in place gasketing compound. Designed for high...

    $5.95 USD
    $5.95 USD
  • Gray RTV Silicone Instant Gasket, 3 OZ

    Gray RTV Silicone Instant Gasket, 3 OZ

    Replaces most pre-cut gaskets by forming gaskets in-place. Will not foul computer sensors. May also be used as...

    $8.55 USD
    $8.55 USD
  • Pro Seal Black RTV Silicon Gasket Maker, 3 oz

    Pro Seal Black RTV Silicon Gasket Maker, 3 oz

    Forms gaskets in-place instantly. Replaces cork, paper, asbestos and felt pre-cut gaskets. Dries tough and flexible. Withstands temperatures...

    $8.35 USD
    $8.35 USD
  • WELDIT # WS-1P Radiator Cooling System Stop Leak Sealer - 20 Gram Each - 24 Vials / Sleeve

    WS-1P Radiator Stop Leak Sealer - 20g Tube - 24 Vials per Sleeve - Made in the USA

    WS-1P Radiator Stop Leak Sealer is formulated to quickly locate and seal leaks in radiators, heater cores, cylinder...

    $18.49 USD
    $18.49 USD
  • Pro Seal Medium Strength (blue) Thread Locker, 50 ml

    Pro Seal Medium Strength (blue) Thread Locker, 50 ml

    Removable strength blue anaerobic threadlocker for fasteners up to 3/4" in diameter. Resistant to gasoline, antifreeze, transmission fluid...

    $26.37 USD
    $26.37 USD
  • Pro Seal High Strength (Red) Thread Locker - 50 ml

    Pro Seal High Strength (Red) Thread Locker - 50 ml

    Permanent strength red anaerobic threadlocker. Resistant to gasoline, diesel, antifreeze, transmission fluid and oil. Prevents galling and corrosion...

    $25.76 USD
    $25.76 USD
  • Proseal Clear Silicone 3 Oz.

    Proseal Clear Silicone 3 Oz.

    Bonds, seals, caulks and insulates. Withstands temperatures from -75ºF (-60ºC) up to 400ºF (204ºC) continuous and up to...

    $8.57 USD
    $8.57 USD
  • Grote Ultra-Seal Corrosion-Preventive Sealant - 4 oz. Tube

    Grote Ultra-Seal Corrosion-Preventive Sealant - 4 oz. Tube

    Grote 99170 Ultra-Seal Corrosion-Preventive Sealant (4Oz Tube)

    $8.99 USD
    $8.99 USD
  • ProSeal Yellow Weatherstrip and Gasket Adhesive, 5 oz

    ProSeal Yellow Weatherstrip and Gasket Adhesive, 5 oz

    ProSeal Yellow Weatherstrip and Gasket Adhesive, 5 oz

    $1.49 USD
    $1.49 USD
  • Permatex Dielectric Tuneup Grease, 3 0z

    Permatex Dielectric Tuneup Grease, 3 0z

    Protects electrical connections and wiring from salt, dirt and corrosion. Extends the life of bulb sockets. Prevents voltage...

    $15.95 USD
    $15.95 USD
  • Black RTV Silicone Instant Gasket, 10.3 Cartridge

    Black RTV Silicone Instant Gasket, 10.3 Cartridge

    Forms gaskets in-place instantly. Replaces cork, paper, asbestos and felt pre-cut gaskets. Dries tough and flexible. Withstands temperatures...

    $23.69 USD
    $23.69 USD
  • K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair

    K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair - 1 or 6 Pack

    This permanent coolant leak repair formula seals cracks and holes throughout the engine’s cooling system. It’s compatible with...

    $21.49 USD
    $21.49 USD
  • Blue RTV Instant Gasket, 3 oz

    Blue RTV Instant Gasket, 3 oz

    Replaces most pre-cut gaskets. Will not foul computer sensors. May also be used to coat gaskets for reliable...

    $8.26 USD
    $8.26 USD