RMP Citrus Solvent is 98% citrus peel oil and 2% water, a natural replacement for mineral spirits and paint thinner for thinning tung oil, cleanup and degreasing.
It's the natural way to thin tung oil, and it cleans brushes and tools and strips wax, oil and residue off a surface before you finish it. The FDA rates it GRAS (generally recognized as safe) for food-related use, which is why RMP pairs it with tung oil on food-contact work. It's combustible, with a flash point of about 116°F. The shop smells like oranges instead of a refinery.
RMP Finishes started in 1993 as D.O. Siever Products, a side business selling pigments that grew out of Dwayne Siever's antique restoration work in a renovated barn in Pennsylvania, and its Real Milk Paint followed in 1995. The family-owned company moved its manufacturing to Hohenwald, Tennessee, in 2014, and in 2025 it changed its name from The Real Milk Paint Co. to RMP Finishes.