Product Description ER-83A is a concentrated “detergent” used diluted with water to emulsify Sherwin’s fluorescent penetrants, such as the Sherwin “RC-” designated products. ER-83A removes surface, non-water-washable penetrants by spray or immersion following a pre-wash step. The product meets low-sulfur, low-halogen, and low-sodium requirements, has a flash point over 200F, and is an OSHA Class IIIB material.
