NISOTEC K4 is a synthetic brake fluid based on polyglycol esters and polyglycol ethers. It is intended for hydraulic transmission mechanisms for braking motor vehicles where the use of DOT 4 quality brake fluid is recommended. Thanks to its low viscosity, it is recommended for brake systems with ABS and ASC. They can also be used for similar hydraulic systems for which manufacturers recommend this type of fluid. It must not be mixed with mineral oil-based brake oils.

NISOTEC K2 is a synthetic brake fluid based on polyglycol esters and polyglycol ethers. It is intended for hydraulic transmission mechanisms for braking motor vehicles of all types where the use of brake fluid of DOT 3 quality is recommended. They can also be used for similar hydraulic systems for which manufacturers recommend this type of fluid. It must not be mixed with mineral oil-based brake oils.