Castrol Hysol™ ALS is a high performance soluble chlorine free metalworking fluid. It contains a unique additive package that works in synergy to enhance machining performance and surface finish, provide excellent product stability, improve bio-resistance properties and lower the overall operations costs. Hysol ALS is suitable for large central systems and single sump machines. Hysol ALS is especially designed for machining of aluminium alloys. The product can also be used for machining of low-medium alloyed steel.