Surface treatment

Metal Finishing Chemistry

Prepaint & Conversion Coating

Our Metal Finishing Chemistry solutions for prepaint and conversion coating applications are engineered to enhance paint adhesion, extend corrosion resistance, and improve surface durability across iron, steel, aluminum, and zinc substrates. These iron phosphate and zirconium-based treatments create uniform, tightly bonded conversion layers that serve as robust foundations for downstream coatings.

Suitable for use in spray washers, immersion tanks, or steam gun applications, they provide flexibility across a range of finishing systems. For added performance, final rinse technologies such as reactive sealants improve coating quality and can even serve as phosphate or aluminum conversion coating alternatives.

These chemistries are ideal for industrial applications seeking long-lasting protection, superior coating performance, and environmentally responsible processing.

Product Name Process Type Concentration pH
ZS 7585S Seal Rinse 1.0% - 2.0% 3.5 - 4.0 Data Bulletin
Metal Medic 7153 Iron Phosphate 4.0% - 4.6% 4.5 - 5.5 Data Bulletin
Metal Medic 7153SPR Iron Phosphate 4.0% - 4.6% 4.5 - 5.5 Data Bulletin
Metal Medic 7155 Iron Phosphate 4.0% - 4.6% 2.5 - 3.0 Data Bulletin
Metal Medic 7166 Iron Phosphate 4.0% - 4.6% 3.5 - 4.5 Data Bulletin
Metal Medic 7173 Zirconium 3.0% - 4.0% 3.5 - 4.5 Data Bulletin

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