| abstract |
Corrosion- and chip-resistant coatings for highntensile steel components, such as automotive coil springs,nare formed from a coating powder composition ofn"toughened" epoxy resin. In a single coat embodiment, thenentire coating is loaded with at least 75 phr zinc powder.nIn a dual coat embodiment, an inner coat is loaded with atnleast 75 phr zinc and an outer, zinc-free coating isnreinforced by the addition of fibers and/or by a foamingnagent which renders it porous. |