INSULATING BITUMEN-BUTYL RUBBER MASTIC Russian patent published in 1999 - IPC

FIELD: making insulating mastic for roofings, temperature seams, hydroinsulation of reinforced concrete and concrete structures, protection of metal surfaces from soil and atmospheric corrosion. SUBSTANCE: claimed mastic comprises the following components (wt %): 28.0-30.0 bitumen; 6.0-8.0 butyl rubber; 2.0-4.0 indene coumarone resin; 10.0-11.0 turpene; 2.0-6.0 transformers oil; 10.0- 15.0 kaolin; and up to 100 nephras. The claimed mastic is less toxic and need not be stirred before use. EFFECT: improved properties of the mastic. 3 ex, 1 tbl