Environmentally friendly, thermally stable, mineral-oil free quenchants. THERMISOL QHY products have a considerably higher flashpoint than equiviscous products based on mineral oil, therefore there is less evaporation. Synthetic quenchants also provide easier cleaning than mineral oil based products. THERMISOL QHY 10 is a low viscosity product to minimise drag out losses. Recommended for applications such as screws, springs, chains, hand tools and mass produced components that are difficult to harden.