COATING COMPOSITION Russian patent published in 1996 - IPC

FIELD: anticorrosive compositions. SUBSTANCE: composition is prepared on the basis of low-molecular butadiene rubber - 100 mas. p. The latter is stirred with 40-50 mas. p. sulfur, 5-10 mas. p. altax, 5-10 mas. p. plasticizer - n-tert. -octylphenolformaldehyde resin, 30-40 mas. p. aerosil and applied on the prepared surface by two layers. Vulcanization is carried out in layers at 150 C x 1 hr. Both layers - at 150 C x 3 hr. Coating properties: impact strength is 5 HM, steel adhesion is 13.0-14.9 MPa, mass change in media: in 20% HCl - 3.2-3.8%, in 20% H₂SO₄ - 3.4-3.9%, in 20% NaOH - 2.2-3.1%. Composition is used for protection of equipment working in strong corrosive media at increased temperatures. EFFECT: enhanced quality and effectiveness of composition. 6 ex, 2 tbl