LOCTITE® 3900

Features and Benefits

Acrylic resin conformal coating which provides a tough, solvent-resistant coating for PCBs, electronic components, thick-film circuits, etc.
LOCTITE® 3900 is a transparent, colorless to slightly amber, acrylic resin conformal coating free of chlorinated solvents or CFCs. It is spray-applied and air dries tack-free in five mins to provide a tough environmental and solvent-resistant coating for printed circuit boards, electronic components, thick-film circuits, etc. Its normal operating range is -40 °F to +257 °F (-40 °C to +125 °C).
  • High dielectric strength
  • Fast drying
  • Free of chlorinated solvents and CFCs
  • Precision spray nozzle
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Technical Information

Application method Spray
Colour Light amber
Cure type Room temperature (ambient) cure
Number of components 1 part
Shore hardness, ISO 868 Shore D 60.0
Specific gravity, @ 25.0 °C 1.14
Storage temperature 8.0 - 12.0 °C