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°F to 110°F 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 “nanocrystals” increase the surface area of the
substrate thus enhancing paint adhesion, corrosion protection and consequently salt–
spray results.
