DOWSIL™ 3-1953 Conformal Coating

One-part, translucent, fast moisture RTV cure with mild heat acceleration possible, soft, stress-relieving, contains UV indicator.

Uses:

Elastomeric conformal coating
Suitable for lighting, industrial and automotive industries requiring various reliability standards as a coating for rigid and flexible circuit boards, electronic printed wiring boards (PWB), sensitive components and fine pitched designs.

These values are not intended for use in preparing specifications.

Adhesion to Yes No Aluminum, Ceramic, FR4, Metal, Plastic
Color Yes No Clear
Curable Coating Yes No true
Cure Characteristics Yes No Fast Room Temp Tack-Free Time < 10 min
Cure Type Yes No RTV
Dielectric Strength Yes No 425 volts per mil v/mil
Dispensing Characteristics Yes No Fast, Very High Flow < 350 cps
Dissipation Factor at 100 Hz Yes No 0.0007
Dissipation Factor at 100 kHz Yes No < 0.0002
Durometer - Shore A Yes No 34 Shore A
Durometer / Hardness Yes No Stress Relieving 15A-40A
Dynamic Viscosity Yes No 350 Centipoise
Elongation Yes No 60 %
Flowable Yes No true
Hydrophobic Yes No true
Low Odor Yes No true
Nonvolatile Content Yes No 99.4 %
Number of Parts Yes No One
Polyesters Yes No true
Primerless Adhesion Yes No Primerless
Resistance Type Yes No Oxidation Resistance, Ozone Resistance, Thermal Resistance, UV Resistance, Water Resistance
Self Leveling Yes No true
Solvent Type Yes No Solventless
Solventless Yes No true
Special Characteristics Yes No IPC-CC-830B Recognized, MIL Spec, UL Recognized
Specific Gravity @ 25°C Yes No 0.98
Temperature Range Yes No -45 to 200 °C
Temperature Stable Yes No High, Low
Thermosetting Yes No true
Water Resistant Yes No true

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