ST2900 Anti-Corrosion topcoat is a specific two-component glossy acrylic clear topcoat that adheres to metals and protects against the appearance of oxidation (rust).
ST2900 Anti-Corrosion topcoat adheres directly to steel, galvanised metal, zinc, aluminium, copper, alloys and stainless steel. High resistance to UV radiation.
The anti-rust topcoat has a pigment which prevents the appearance or progression of oxidation : indeed, even if an adhesion topcoat is applied to a metal, residual oxidation can nevertheless develop under it, even if there are no visible traces of rust at all before coating. Rust will develop over time unless the anti-corrosion topcoat has been used.
ST2900 Gloss* has a good transparency (slightly less than a conventional bodywork clear topcoat).
Available in matt or satin (minimum order of 10 litres).
anti-corrosion topcoat all metals ST2900, the following offers
Complete kit with topcoat, hardener and thinner
ST2900-140 kit 1.4L : Topcoat 1L, Hardener H3116 250ml, Thinner 710 150ml
ST2900-700 kit 7 Litres : Topcoat 5L, Hardener H3116 1,25L, Thinner 710 750mL
The mixture :
100 parts ST2900 topcoat
25 parts hardener H3116
Dilution of 10 - 15 % Acrylic thinners 709/710/711
Theoretical yield : 6-8 M2 / L
Applicable by spray, brush or roller
1.3 to 1.8mm HVLP gun
Gun pressure : 3 bars
INSTRUCTIONS FOR USE
Over degreased, dry, dust-free backgrounds
The mixture must be perfectly homogeneous.
±80-100 Gr./ M2.
Suggested thickness : 25-35 µm dry
One pass process :
Apply a moderate, continuous coat, followed by a solid coat. The first coat should be applied over the entire surface or all repaired parts before the second coat is applied. For less than 3 parts, 2 to 3 minutes of "flash off "* should be observed. For more than 3 pieces, no flash off is required.
Standard 2-coat process :
Apply 2 moderate coats with 5 minutes of flash off between each coat.
Do not apply more topcoat than indicated.
At a temperature of 20°C :
Dry to the touch : 60 min
Recoverable after 1-2 hours
PERSOZ UN EN ISO1522 hardness : 48H : 260