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Conformal Coatings


Dow Corning's line of conformal coatings includes three basic families:

  • RTV Elastomeric Coatings, the newest of these, are designed to provide fast to very fast room temperature curing in a soft, stress-relieving material.
  • The next group, the RTV Elastoplastic Coatings, is either traditional or ozone-safe solvent-based coatings that provide good abrasion resistance with the expected good board protection.
  • The third group, the Solventless Heat Cure Coatings, is fast heat-curing one-part coatings that again combine excellent protection in a soft, stress-relieving material.

All conformal coatings contain a UV indicator enabling blacklight visualization of the coating.

Learn more from the Conformal Coatings Tutorial.

PDF Links will download files in Adobe Acrobat PDF format. For technical information, or to download the free Acrobat Reader, go to Acrobat help.

RTV Elastomeric Coatings Overview
Type: Noncorrosive, one-part, solventless, RTV moisture curing silicone elastomer; most are fast cure
Physical Form: Translucent liquid available in different viscosities
Special Properties: Heat accelerable; transparent to translucent; resists humidity and other harsh environments; good dielectric properties
Potential Uses: Low-stress protective coating for rigid and flexible PWBs
Technical DataTutorial

RTV Elastoplastic Coatings Overview
Type: One-part RTV silicone resins
Physical Form: Translucent liquid, cures to clear elastoplastic resin
Special Properties: Heat accelerable; transparent to translucent; resists humidity and other harsh environments; good dielectric properties
Potential Uses: Abrasion resistant protective coating for rigid and flexible PWBs, plus a variety of ceramic and hybrid circuits, components, connectors and connections
Technical DataTutorial

Solventless Heat Cure Coatings Overview
Type: One-part solventless silicone elastomer
Physical Form: Translucent liquid
Special Properties: Fast thermal cure; transparent; resists humidity and other harsh environments; good dielectric properties; self-priming adhesion
Potential Uses: Protective coating for rigid and flexible printed circuit boards
Technical DataTutorial

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