| abstract |
A low viscosity functional fluid composition or brake fluid, exhibiting a dry equilibrium reflux boiling point (ERBP) of at least 260°C and/or a wet equilibrium reflux boiling point (WERBP) of at least 180°C, comprising (A) from15 to 90%of alkoxy glycol borate esters [R 1 -O-(CH 2 CH 2 -O) n ] 3 B, wherein R 1 is a C 1- to C 8- alkyl radical and n has a value of from 2 to 6,10 (B) from 5 to 80% of alkoxy glycol components R 2 -O-(CH 2 CH 2 -O) m- H, wherein R 2 is a C 1- to C 8- alkyl radical and m has a value of from 2 to 6, (C) from 0.1 to 10% of an additive package comprising additives with corrosion inhibition action, wherein at least one of the additives contained in the additive package is selected from alkylamine ethoxylates. |