Check the Technical Data and Product FAQ below for answers to your most common questions. Archival, professional artist-quality, and non-yellowing. Excellent for creating washes, under-paintings, drip effects, etc. Extremely effective for cleaning and restoring brushes thoroughly. 100% plant-based and natural. Tested by professional toxicologists. Does not emit harmful vapors. Does not irritate the skin. Does not pollute the soil or waterways. Eco-Solve pairs perfectly with our natural oil painting products, like the Complete Eco-friendly Oil Paint Kit, allowing oil paint artists to have a completely safe painting experience. It is compatible with all mainstream oil paints as well. Comes in three sizes - 8 oz, 16 oz and 64 oz. Natural product - color varies between batches.