Blue Monster ZERO from Clean-Fit Products, a division of The Mill-Rose Co., is an industrial strength, eco-friendly PTFE-enriched pipe thread sealant with zero VOCS, zero PFOA and zero lead. ZERO with PTFE is an all-purpose non-seizing thread sealant that is extremely effective sealing all types of metal and plastic threads, carrying water, steam, natural gas, LP and more, the company