Saf-T-Cool 450 forms a premium quality micro-emulsion for machining and grinding. Starting dilutions for machining operations should be between 5 – 10%. For grinding operations, the suggested starting dilutions should be between 4 – 6%. Make-up fluid is typically added at half the target concentration. For proper mixing it is recommended that Saf-T-Cool 450 concentrate be added to water with agitation.