A holding primer, supplied in one-pack form, for blast, cleaned structural steelwork. Also recommended for use on galvanized iron surfaces, hard polished alloys etc. When applied to blast cleaned iron and steelwork, provides protection against corrosion during the fabrication period. A coat of conventional rust-inhibiting metal primer should be applied over the Etch Primer, within a one month period, where severe corrosive conditions, particularly in coastal regions are present or evident.
Characteristics: A single-pack etch primer based on modified Polyvinyl Butyral resin and rust inhibitive pigments and acid.
Advantages: Affords maximum adhesion on galvanized surfaces and all smooth ferrous and non-ferrous metals. Provides limited protection during fabrication. Quick-drying. High spreading capacity. Ideal where chemical preparation is impractical.
Application: By brush or conventional spray.
Thinning: Supplied ready for use no thinning required.
Drying time: Touch dry: 20 minutes. Through dry: 1 hour Re-coatable: 4 hours
Spreading Capacity: 18-20 m2/l when applied by brush or spray on smooth surfaces. 10-12 m2/l when applied to blast cleaned surfaces at 12 microns DFT
Colour range: Yellow (semi-transparent)
Pack sizes: 1 litre, 4 litres and 20 litres
Ferrous and non-ferrous metals: Prepare surface (refer Data sheet SP 3)
Metal surfaces: Apply liberally by brush or spray, one coat of Crown Etch Primer. Overcoat with a conventional metal Primer within six months for maximum protection especially on exposed metalwork and on all steelwork in coastal and damp conditions.
For health & safety information, please refer to our Material Safety Data Sheet (MSDS)