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BONDERITE® M-ZN 958 is a polycrystalline metal pre-treatment designed for aluminum, steel, zinc alloy coated steel, electro-galvanized steel, and galvanized steel. It provides high alkaline resistance and a processing temperature of 115°F±5°F.
Appearance: clear, green liquid
Density: 1.5 g/cm³
pH value: 1.0
Total acid: 18─26 points (ml)
Free acid: 0.6 ─1 points (ml)
Accelerator: 2.0─3.5 points (ml)
Time: 2─5 minutes
Temperature: 115°F±5°F;
Primary Chemistry:
Zinc phosphate
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BONDERITE® M-ZN 958 is an eco-friendly, nitrite accelerated tricationic metal pre-treatment processed using immersion application. It is recommended for use on various metal substrates, including aluminum, steel, zinc alloy-coated steel, galvanized steel, and electro-galvanized steel, which can be processed individually or in mixed metal productions. Upon application, this solution forms a fine crystalline coating of manganese and nickel-containing zinc-phosphate, with excellent durability and protective properties for paint finishes, organic coatings, and electrocoating applications.
Poor adhesion of paints or adhesives to metal surfaces
Corrosion of metal surfaces
Metal pre-treatment for steel, galvanized steel, electro-galvanized steel, zinc-alloy coated steel and aluminum
Pretreatment for electrocoat applications
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