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Silicones from Dow Corning
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Increase Water Repellency

Increase Water Repellency

Many plastics applications require excellent hydrophobic properties. Moisture can affect part dimensions and mechanical properties, accelerate aging and degrade performance of the end application. Unfortunately, not only do some resins such as PA, polyester and PC absorb significant moisture, but many fillers used in compounds are also highly hydrophilic.

Solving Your Application Challenges

Our additives boost water repellency in a range of applications, including automotive under-hood components, kitchen appliances, electrical housings and fuse boxes, power tools and wire and cable insulation.

Our hydrophobic improvement technology offers these additional benefits:

  • Maintains mechanical properties
  • Prevents premature aging
  • Improves dispersion and de-agglomeration of inorganic fillers

Product highlights include:

  • Dow Corning® 11-100 Additive (PDF): Contains alkoxy and ankyl functional groups on siloxane to transform hydrophilic resins and inorganic fillers into hydrophobic materials.
  • Dow Corning® 4-7081 (PDF): silicone powders delivering hydrophobization in typical highly filled HFFR compounds.

Find out how Dow Corning can help you improve application performance with silicone-based material reinforcement additives. It's as easy as contacting your Dow Corning representative.

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