Hydrolytic Stability of Potting Compounds for Electrical Connectors
Technical rept. Aug 1968-Apr 1970
AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
An extensive evaluation of elastomeric potting compounds for their ability to withstand long term exposure to high temperature and humidities is described. This work was initiated as a result of the reversion of potting compounds in the electrical connectors on the F-4 in which the compounds softened and liquefied. Materials tested included polyurethanes, epoxies, silicones and polysulfides. Coatings and tubing were tested in addition to the potting compounds. This effort involved the establishment of more severe humidity-temperature tests than were previously used in military specifications. The results of testing many specification and non-specification compounds to the more severe conditions are included.
- Miscellaneous Materials
- Elastomers and Rubber