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Silicones from Dow Corning
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Coolant/Radiator Hoses

Boost fluid delivery performance with extended hose durability

Choose Silastic® brand silicone elastomers from Dow Corning to help improve reliability and service life in high- and low-pressure coolant hoses for engine cooling and vehicle heating.

Reliable silicone rubber radiator and coolant hoses

Use proven silicone elastomers to give your customers:

  • Radiator and coolant hoses with multiple-ply construction and fabric or wire reinforcement to match system operating pressures
  • Heater hoses with long-term flexibility and abrasion-wear resistance
  • Reliability with high burst strength, pinhole-free leak protection and long-term durability in severe-duty service

Silicones are proven, economical and effective answers
Silastic silicone elastomers (HCR and LSR) can offer both reliability and economy to vehicle manufacturers and aftermarket service providers. You can rely on silicone coolant, radiator and heater hoses to:

  • Resist hardening, cracking, cold leaks and aging in harsh underhood operating conditions.
  • Remain flexible over a wider temperature range than organic elastomers.
  • Withstand aggressive coolant blends, oil, ozone and road salts.
  • Meet or exceed industry specifications for hose performance.

Silastic fluorosilicone elastomer provide resistance to degradation from fuels, oils, solvents and harsh chemicals.

Get the coolant and radiator hose materials and support you need to meet or exceed industry specifications.

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  • Get a product suggestion
    Let us suggest products to meet you radiator, coolant and heater hose needs.
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  • Request a customized material
    Get the material properties and performance you require.
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  • See additional powertrain solutions
    In addition to specialty sealants, elastomers and lubricants, we also offer more material options for other powertrain applications.

As automotive underhood temperatures increased and the reliability of electrical systems became critical, silicone rubber became the insulation of choice for ignition cables and spark plug boots.

Learn more about the performance advantages of silicone elastomers from Dow Corning for ignition cable insulation and spark plug boots.

View more solutions for powertrain applications

Radiator/intercooler seals
CVJ boots
Engine seals, gaskets
Engine mounts
Muffler hangers, dampers
Turbocharger/intercooler 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)

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