Emerald Paint–Prep 389 NP is a phosphate–free cleaner coater with no regulated heavy
metals. It is designed to provide an effective cleaning and a conversion coating that can
be applied successfully at temperatures ranging from 80掳贵 to 110掳贵 in spray wand
applications. Emerald Paint–Prep 389 NP provides a microcrystalline surface in the
nanometer (10–9m) while conventional iron phosphate coatings are usually in the
micrometer (10–6m) range. These 鈥渘anocrystals鈥 increase the surface area of the
substrate thus enhancing paint adhesion, corrosion protection and consequently salt–
spray results.