RMP Citrus Half & HalfA perfect blend of Pure Tung Oil and natural, food grade Citrus Solvent. Most projects require the thick viscosity of Pure Tung Oil to be thinned for better absorption into the surface. Half & Half is great for projects large and small. The Citrus Solvent option uses biodegradable, food grade solvent derived from citrus peels and offers a light, fresh aroma while delivering the same full penetration, durable protection.