What are Special Industrial Solvents (SIS)?
Special Industrial Solvents are General Use Formulas and therefore are denatured SDA’s. All SIS’s are derivatives of SDA-1, SDA-3A or SDA-3C. There are many possible SIS formulas. While the Federal Government does not issue the formulas, the Government has established certain guidelines for the balance of the denaturants. Any interested party may petition the BATF for approval of a new General Use SIS Formula. Over the years many of these formulas have become “standardized” in the industry with number and letter designation (Formula A-1, etc.)giving the impression that the Federal Government has issued rather than simply approved them. Pharmco Products is capable of manufacturing all of these products but chooses not to manufacture Special Industrial Solvents with carcinogenic additives or those that pose an extreme risk to the safety of our employees. The Federal Government sets the guidelines for the starting material (SDA-1, SDA-3A & SDA3C) as well as the type and minimum level of d
