FB 100 by Eagle Specialty Products is a silicone-modified hydrocarbon blend. Acts as a defoamer. Provides rapid defoaming in solvent systems without causing film defects such as craters, crawling and fish eyes. FB 100 improves flow and leveling and can often reduce or eliminate cratering and crawling on hard to wet substrates. Used in oil and alkyd modified urethanes, epoxies, chlorinated rubber and moisture-cured urethanes. Its recommended dosage level is 0.5-1.0%.