GEISS^® PER NS (Perchloroethylene normal stabilised, Tetrachloroethylene) is a chlorinated hydrocarbon solvent for surface cleaning.

GEISS^® PER NS does not have a flash point.

GEISS^® PER NS is a non-polar solvent and particularly suited for cleaning of parts and surfaces with non-polar impurities. The solubility of polar substances is very low.

Thanks to the almost infinite distillation capability of perchloroethylene, a closed loop can be permanently applied. In comparison to the production of fresh products, up to 90 % of CO₂ can be saved.