Samand
40
Technical description
Painting galvanised sheet
The structure of the paint system is by and large the
same as before. Only in regard to rubbing down and
filling have the methods and materials changed.
Different paint suppliers recommend different
procedures for their particular products. However, they
all emphasise the extreme importance of thorough
cleaning and point out that acid-hardening (etching)
materials are required for adhesion to galvanised
surfaces. We recommend paint shops to get in touch
with the paint supplier concerned in each separate
case.
Important.
An exposed zinc surface will begin to oxidise
immediately. After grinding and exposing zinc coated
sheet metal it is therefore extremely important that the
exposed surface is primed within a couple of minutes.
Use an acid-hardening (etching) primer. See
Adjustments and replacements.
If filler is to be used on the surface, use only epoxy
primer.
All new methods and materials can be used on cold
rolled sheet.
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