Steel and Cast Iron
Any welding residues must be removed and the joints sanded. The surfaces to be coated must be free from dirt, oil, grease and impurities; Salts and other contaminants can be effectively removed by high-pressure washing with fresh water before sandblasting.
Sandblast to cleanliness level Sa 2½ according to ISO 8501-1.
Average surface roughness degree RZ ≥ 50 μm.
After sandblasting, carefully clean the surface by removing dust and abrasion residues.
Pre-existing paints
Manual or mechanical preparation (St2 or St3 according to ISO 8501-1) or sandblasting until old paint and oxides not perfectly anchored to the support are completely eliminated. Clean the surface carefully, removing dust and abrasion residues.
Galvanized steel
Washing with biodegradable detergents in accordance with SSPC-SP1 to remove dirt, oil and grease. Roughening sandblasting with non-ferrous abrasive, average surface roughness RZ ≥ 10 μm.
Galvanized sheet metal
Sandblasting with non-metallic abrasives up to grade Sa2 in accordance with ISO 8501-1, commercial sandblasting SSPC-SP6 to remove all encrustations, rust and foreign bodies. The surface does not have uniformity as a fundamental requirement, both in terms of the degree of cleanliness and in terms of appearance. At the end of this process the surface has a predominantly gray color and a roughness suitable for ensuring a firm adhesion of the layers of paint that will be applied.
Where it is not possible to prepare by sandblasting, roughen the surface of the support mechanically or manually, then clean carefully. In this case the adhesion of the product must be confirmed.
Aluminum
Sandblasting with non-metallic abrasives up to grade Sa2 in accordance with ISO 8501-1, commercial sandblasting SSPC-SP6 to remove all encrustations, rust and foreign bodies. The surface does not have uniformity as a fundamental requirement, both in terms of the degree of cleanliness and in terms of appearance. At the end of this process the surface has a predominantly gray color and a roughness suitable for ensuring a firm adhesion of the layers of paint that will be applied.
Where it is not possible to prepare by sandblasting, roughen the surface of the support mechanically or manually, then clean carefully. In this case the adhesion of the product must be confirmed.
The support must have a temperature at least +3°C higher than the dew point to reduce the risk of condensation or bleaching of the finish.
Combine the two components in the indicated mixing ratio. Add component B (hardener) to component A (base) and mix thoroughly until the product is completely homogenized. It is possible to dilute the Syntech Primer Metal with 5-10% of Syntech Epoxy Thinner for applications with cup, airless and airmix airbrush.
Adherence to steel
Brilliance
EN ISO 2813
Touch hardening at 20°C
Complete hardening at 20°C
Time before second coat at 20°C
Salt spray
EN ISO 9227
Viscosity
Dry residue
in peso
Working temperature
Approximately 0.18 kg/m2 of Syntech Primer Metal for a dry thickness of 80 μm.
Do not apply on surfaces that are not adequately prepared
Product intended only for industrial work by professional applicators
Respect the mixing ratios, consumption and overapplication times indicated
The use of unsuitable thinners different from those indicated can create problems for the product both of an aesthetic nature (color change, sedimentation of the product, variation in the degree of brightness, formation of surface hazes, etc.) and in terms of technical performance . The use of the wrong thinners can also create problems during the application phase. Azichem srl therefore does not guarantee any product performance if its dilution is carried out with unsuitable products or products other than those indicated.
