METHOD FOR MOISTURE PROTECTION OF EPOXY FOAMED COMPOUNDS WITH BROKEN SURFACE FILM OF ARTICLES FOR RADIO- AND ELECTRICAL PURPOSES Russian patent published in 2011 - IPC C09D163/10 

FIELD: chemistry.

SUBSTANCE: invention relates to moisture protection of epoxy foamed compounds with a broken surface film used for sealing articles for radio- and electrical purposes, which work in harsh climatic conditions. Parts of the epoxy foamed compound are cleaned. The cleaning products are removed, a protective composition is deposited and hardened. The protective composition used contains the following, pts. wt: epoxy organosilicon resin SEDM-2 90-110; low-molecular weight polyamide resin L-20 45-55, and hardening is carried out at temperature 25±10°C for 20-24 hours.

EFFECT: invention lowers water absorption of the foamed compound and reduces the effect of climatic conditions on its radio characteristics.

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