Radiator Specialty Company was founded in in 1924 and, at that time, manufactured only radiator repair products. With the growth of the company over the past eight decades, RSC now manufactures a multitude of chemical solutions for a wide variety of industries. We have streamlined these products to fall into one of three core product categories, each focused on providing you with the right solution to fit your project's unique chemical needs.

• Gunk DOT 3 brake fluid conforms to Motor Vehicle Safety Standard No. 116 and SAE No. J1703. It is approved for all ABS systems and will work in all disc and drum brake systems where DOT 3 fluid is specified.
• For manual shift vehicles