Loctite

Loctite was founded in 1953 by Dr. Vernon Krieble, who invented anaerobic adhesive technology — the chemistry that hardens in the absence of air and in the presence of metal. That origin story defines the brand: chemistry engineered for fasteners, threads, and mechanical joints in demanding conditions. The brand is now owned by Henkel (Rocky Hill, Connecticut) and operates across industrial, aerospace, and automotive markets worldwide. In the automotive service space, Loctite is best known for thread lockers (the blue 243 and red 271 are standard shop inventory), but the product line extends to anti-seize compounds, penetrating oils, and metal conditioners. The LB (Loctite Brand) numbering system — LB 8008, LB 8150, LB 8504 — covers the anti-seize range. Their Henkel corporate backing means SDSs are maintained to GHS standards and updated on a regular revision cycle, which is a meaningful trust signal compared to smaller brands that let documentation lapse.