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Silicones from Dow Corning
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Engine Seals, Gaskets

Provide dependable engine sealing and gasketing

Choose proven Silastic® brand elastomers and Dow Corning® brand sealants to withstand high temperatures, extreme pressures and harsh fluids that can cause organic rubber seals and gaskets to fail.

Dependable silicone rubber engine seals and gaskets

You have tough, critical underhood sealing and gasketing

  • Need assembly solutions? Try dispensable Dow Corning silicone and fluorosilicone sealants for formed-in-place, quick-curing engine and component seals.
  • Want sealing integrity? Try Silastic silicone and fluorosilicone rubber for precisely fabricated, high-volume seals and gaskets.

Learn more about Dow Corning adhesives and sealants for powertrain applications.

Silicones withstand conditions that can cause many organics to fail
Engine seals and gaskets made with Silastic elastomers and Dow Corning sealants:

  • Maintain sealing strength without softening, aging or compression set.
  • Perform reliably over a wide temperature range from -40 to 200°C (-40 to 392°F).
Fluorosilicone elastomers and sealants add fuel and oil resistance.

We have solutions for your sealing and gasketing needs

Get the materials and support you need for dependable engine sealing and gasketing.

Talk to Us
  • Get a product suggestion
    Let us suggest products to meet your engine sealing and gasketing needs.
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  • Request a customized material
    Get the material properties and performance you require.
Special Request
  • See additional powertrain solutions
    In addition to specialty sealants, elastomers and lubricants, we also offer more material options for other powertrain applications.

Silastic® FSRs in the Media

Learn how smart science is driving FSR innovation.

Rubber World Cover

FSR Technology for Extreme High Temperatures

Discover how new Silastic® brand FSRs can help meet your needs in challenging automotive applications.

View more solutions for powertrain applications

Radiator/intercooler seals
CVJ boots
Engine mounts
Muffler hangers, dampers
Turbocharger/intercooler hoses
Coolant/radiator hoses
Powertrain component lubrication
Dry-film corrosion protection
Fuel quick-connect seals
Flexible diaphragms
Piston anti-friction coatings
Vibration & wear control
Other powertrain solutions

Learn more

Improve Efficiency, Smoothness, Durability: Smart Science Drives Powertrain Systems Innovation (1.10 MB PDF)
Adhesive/Sealant Solutions for Smart Vehicle Systems Design (PDF)

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In the 1960s, more than 1,200 pounds of silicone and fluorosilicone rubber parts per plane were used for critical seals on the U.S. Air Force's C-5 Galaxy transport.

Learn more about the properties and performance advantages of silicone and fluorosilicone engineered elastomers.

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