Galfan is supplied passivated and/or oiled to temporarily limit any risk of white rust formation. During transport and storage, all necessary precautions must be taken to keep the material dry and to prevent the formation of condensation. Improved rust prevention can be obtained by the application of Easyfilm® (please see data sheet E80 for the specific properties of Easyfilm®).
Forming and joining
The forming and joining techniques currently used for uncoated steel sheets are also suitable for galvanised steel.
The coating thickness must therefore be compatible with both the desired degree of corrosion protection and the requirements of the forming and welding processes envisaged.
Forming performance will be improved if galfan is coated with an Easyfilm® thin organic coating.
The organic paintability of galfan is very good both before forming (coil coating) and after forming (post-coating).
Degreasing and a suitable surface treatment are necessary before painting when the material is supplied oiled. Galfan supplied with an Easyfilm® thin organic coating can be painted directly without any surface treatment. However, the paint used must be compatible with the Easyfilm® resin.