Permatex

Permatex is one of the longest-standing names in automotive chemistry, founded in 1909 and now a division of Illinois Tool Works (ITW). The brand built its reputation in professional repair shops with gasket makers, thread lockers, and RTV silicone sealants that became standard issue in dealership service departments and independent garages alike. That professional credibility carries through to their lubricant and maintenance line — the same formulators who designed sealing compounds for engine assembly also make the silicone spray that goes on door weatherstripping. Their catalog spans a wide range of chemistries: silicone lubricants, dielectric grease, anti-seize compounds, penetrating oils, and specialty adhesives. The product codes (80070, 81730, etc.) are consistent across professional distributors and retail channels, which makes SDS sourcing and professional documentation reliable.