Fast MP20 Metal Etch Primer is a quick drying acid-hardened etch primer that contains Zinc phosphate pigment which provides excellent anti corrosive properties. Fast MP20 Metal Etch Primer dries to a smooth matt finish and can be top coated with decorative PVA�s, roof acrylics and enamels. Available in Venetian Red in 1L, 5L & 20L pack sizes.