Monday, May 28, 2018
Publication Date: 08/1/2010
Archive >  August 2010 Issue >  Electronic Mfg. Products > 

NuSil: Curable Silicoating with Low Friction
Protective coating assumes substrate's properties.
Carpinteria, CA — NuSil Technology LLC has released R-2182, a curable coating designed to alleviate surface tackiness and blocking (sticking to themselves by virtue of chemical affinity) in applications in which silicones come in contact with each other or other surfaces. Such surfaces include precision molded parts, molded rubber stoppers, O-rings, gaskets, accordions or cables/cable coatings. The new coating can also be used to control the flow of hydrophilic fluids.

Silicone elastomers inherently have a high degree of surface tack which can present problems when storing, especially in cases where the silicone is likely to fold and unfold or spool together. R-2182 decreases the coefficient of friction of a cured silicone surface by at least 50 percent as compared to a non-coated silicone surface, so it is very well suited for these situations. In addition, it reduces the surface energy for masking by approximately 50 percent and has a high contact angle of 123°.

According to the company, the coating chemically bonds to the underlying silicone substrate and resists abrasion, eliminating the concern of migration commonly associated with lubricants such as fluids and greases. It is a two-part, low-coefficient of friction silicone coating dispersed in xylene. A thin coat cures rapidly with elevated temperatures and, once cured, it chemically bonds to the silicone elastomer substrate, mimicking its mechanical properties. The result is a smooth and durable, yet flexible, coating that resists abrasion, stiction and friction from moving, sliding and rubbing parts.

Contact: NuSil Technology LLC, 1050 Cindy Lane, Carpinteria, CA 93013 800-424-9300 or 805-684-8780 fax: 805-566-9905 Web:

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