Chesterton 785 500g penetrating oil

Containing Chesterton's proprietary blend of very fine solid inorganic lubricants in a non-gumming and ash-free synthetic carrier, 785 can be used in extremely harsh temperature and pressure conditions to facilitate the assembly and disassembly of parts. It does not contain toxic heavy metals. It protects installed components from corrosion and prevents the effects of moisture, steam, seawater, high temperatures, and corrosive chemicals. A food-grade version of the product, 785FG, is also available.