| APTEK 2503-A/B is an unfilled, two component, electrically insulating, transparent, flexible urethane coating system designed for the encapsulation and protection of electronic services mounted on printed circuit boards. For coating applications that require toughness, this system provides a combination of excellent flexibility and optimum tensile strength/elongation characteristics Qualified to Mil-I-46058C and SCD 6528981; Non-TDI based for safety; Excellent reversion resistance for good physical stability under high heat and humidity environments; Tg below -70ºC for excellent low temperature cycling, storage and performance; Excellent substrate adhesion, no primer needed, superior to silicones; Exceeds NASA outgassing requirements for high vacuum environments; Fluoresces under black-light (UV) to facilitate QC inspection of coating coverage; Low viscosity and long work life for spraying or dipping operations Information provided by Aptek Laboratories, Inc. |
