KATHON FP 1.5 is effective against bacteria and fungi in a wide range of fuel preservation applications. Manufactured exclusively for the fuel market, KATHON FP 1.5 contains the widely used CMIT/MIT active in a solvent of dipropylene glycol (mixed isomers), rather than water. Low product dosages of 0.01% to 0.04% (100 to 400 ppm) product, as supplied, are required for antimicrobial efficacy. The maximum dosage of 400 ppm product delivers only 1.4 ppm sulfur, and the minimum dosage of 100 ppm product delivers 0.3 ppm sulfur.