Accession Number : AD0437252

Title :   MATERIAL - SEALANT, SYNTHETIC ELASTOMER - EVALUATION OF MODIFIED EC-1610 TYPE,

Corporate Author : GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s) : Warren,J. M.

Report Date : 15 APR 1964

Pagination or Media Count : 21

Abstract : Specimens of modified EC-160 and PR-9422 B1/2 were tested. Results indicated: (1) Both materials have approximately the same application time. The modified EC-1610 developed hardness considerably faster than PR-9422 B1/2. (2) Modified EC-1610 and PR-9422 B1/2 had about the same resistance to thermal rupture and thermal shock after soaking in jet reference fuel (JRF). Both sponged to some extent. (3) Comparison of thermal extrusion of the two sealants showed the modified EC-1610 to have less extrusion from small tubes than PR-9422 B1/2. (4) Both sealants showed comparable losses of adhesion to substrates after immersion in a 2-layer media, JRFsalt water, at 140 F. In resistance to JRF alone at 140 F, PR-9422 B1/2 appeared to have the advantage over modified EC-1610. (5) Both sealants showed good repairability. It was concluded that modified EC-1610 was the better structural void repair sealant. (Author)

Descriptors :   (*SEALING COMPOUNDS, FUEL TANKS), (*PLASTIC SEALS, FUEL TANKS), (*FUEL TANKS, SEALING COMPOUNDS), JET ENGINE FUELS, JET BOMBERS, SEA WATER, ENVIRONMENTAL TESTS, MECHANICAL PROPERTIES, ADHESION, ELASTOMERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE