Dow Corning Cookie Policy

We use cookies to enhance your experience with Dow Corning. Learn how cookies are used on this website and view our privacy statement.

By continuing to browse this site, you agree and consent for cookies to be used.

Silicones from Dow Corning
Log In | Profile/Preferences | Customer Support | Contact Us      Global (English). Change
Products             Technical Library             Premier Services             About Dow Corning             Careers
What Do You Need To Do?
What Is Your Application?
Our Materials Expertise
Product Resources
Technical Resources
Services & Support
Contact Us
Content Guide

Radiator/Intercooler Seals

Increase sealing integrity under high temperatures and pressures

Use Silastic® brand silicone and fluorosilicone elastomers and Dow Corning® brand silicone sealants for tough, flexible seals that perform reliably and can last longer than many organic rubber seals in harsh engine environments.

Tough silicone rubber radiator/intercooler seals

Give your customers service reliability:

  • Radiator seals with improved resistance to advanced coolant blends and organic acid treatments (OAT)
  • Intercooler seals that retain flexibility and sealing strength when exposed to high heat from turbochargers, including temperatures > 200°C (392°F)

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

Silicones can outperform many organics in harsh environments
Radiator seals and intercooler seals with Silastic elastomers and Dow Corning sealants:

  • Withstand increasingly higher underhood temperatures and resist softening, aging or compression set.
  • Stay flexible with less cracking, brittleness or leaking in numbing cold.
  • Resist degradation from engine fluids, solvents and environmental contaminants.

Extend your options for productivity, cost and performance
You can meet requirements for higher productivity, lower cost and special performance attributes with standard blends and custom compounds of:

Get the elastomers, sealants and support you need to improve radiator and intercooler sealing reliability.

Talk to Us
  • Get a product suggestion
    Let us suggest products to meet your radiator and intercooler sealing needs.
Product Suggestion
  • 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.

View more solutions for powertrain applications

CVJ boots
Engine seals, gaskets
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)
Case Study: Silicone Improves Charge Air Cooler Performance, Reduces Costs (PDF)
Adhesive/Sealant Solutions for Smart Vehicle Systems Design (PDF)

Ask an expert

Identify your radiator and
intercooler sealing
needs. Get
Dow Corning help.

Contact Us

Stay informed

Sign up for free e-mail updates on automotive solutions from Dow Corning.


The unique high-temperature sealing properties of silicones are valued for joints in the water tank, radiator tubes, radiator cover and openings. Silanes are added to engine coolant to enhance coolant anticorrosion performance.

Learn more about the properties and performance advantages of silicones and other specialty materials from Dow Corning.

Media Center    |    REACH    |    Site Map    |    Other Dow Corning Websites         
Using this website means you understand our Privacy Statement and agree to our Terms & Conditions.
©2000 - 2018 Dow Corning Corporation. All rights reserved. Dow Corning is a registered trademark of Dow Corning Corporation, a wholly owned subsidiary of The Dow Chemical Company.
The Corning portion of the Dow Corning trademark is a trademark of Corning Incorporated, used under license. XIAMETER is a registered trademark of Dow Corning Corporation. We help you invent the future is a trademark of Dow Corning Corporation.®™Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow.
Dow Corning complies with the California Transparency in Supply Chains Act.