Rotocoat performs the hot-dip galvanising of steel in accordance with NEN-EN-ISO-1461. This standard describes the functional requirements the anti-corrosion effect of the applied zinc layer must meet.
For a good galvanising result, materials delivered must meet the following conditions:
- materials must have the correct steel quality;
- materials must comply with the general principles of design as defined in NEN-EN 14713-1 and NEN-EN 14713-2;
- inlet and outlet holes must be correctly applied;
- materials must be free of contaminations and impurities that cannot be removed by chemical pre-treatment.
That means materials must be free of:
- paint and/or varnish (or traces),
- welding sprays that are too thick or contain silicone,
- welding slag,
- thick oil and/or grease layers,
- marks with pastel crayon, paint or inappropriate markers (consult galvanising plant),
- adhesives, glues, stickers etc.
Specific requirements apply for the materials that are also going to be powder coated. For more information see technical information coating.