SEALING COMPOSITION (OPTIONS) Russian patent published in 2003 - IPC

FIELD: sealing materials. SUBSTANCE: invention relates to sealing and tightening compositions operated both in air medium and in fuel and oil media. Composition consists of sealing and curing pastes at weight ratio from 1: 1 to 20:1. Sealing paste contains, wt parts: polysulfide oligomer 8-25, filler 40-80, phthalic acid dialkyl ester 10-30, adhesive 0.1- 5.0, and pigment 1-80. Curing paste contains, wt parts: manganese dioxide 20- 50, phthalic acid dialkyl ester 20-40, filler 15-45, and curing accelerator 5- 15. Alternatively, composition contains sealing and curing pastes with following components, wt parts: polysulfide oligomer 20-45, phthalic acid dialkyl ester 10-15, curing accelerator 0.9-20, catalyst 0.5-1.5, filler 40-50, pigment 10- 100, and thixotropic agent 5-20. EFFECT: increased resistance to corrosive media and prolonged vitality. 2 cl, 1 tbl, 6 ex