Valvoline Cummins Ltd. Offers Diffuses Ultraviolet Light Car Paint Sealant. The Ultraviolet Light Car Paint Sealant minimizes direct contact with environmental contaminants. The fortified paint sealant containing silicone that protects the vehicle`s finish from sun, salt, grease, tar, acid rain and industrial fallout, while sealing in a deep and durable shine. It is available in 5 ltr. And 1 ltr packs.