Nitrate and Butyrate
Nitrate and Butyrate Dope do not mix. Each has its own unique characteristics and uses. Nitrate, which comes only in clear, gives excellent penetration in bare wood. Because Nitrate is not fuel proof, builders often use it for free flight airplanes that are rubber band powered. Butyrate Dope comes in colors as well as clear, and it is fuel proof. To get the excellent penetration into bare wood that you are looking for, thin Butyrate Clear Dope to 70 percent. It will sink in and seal the wood, giving you a drum-tight finish. Remember, Butyrate Dope can go over Nitrate, but Nitrate cannot go over Butyrate Dope.