Coloured aluminium roofing sheet
KALZIP® COATED
Kalzip
Modern building technology makes the highest demands on the resistance of the materials employed to weathering and corrosion. Coloured Kalzip aluminium profiled sheets are the result of state-of-the art surface refinement technologies.
Consistent colour quality
The aluminium strips, which are coated using the coil-coating process, undergo a large number of elaborate work steps. Depending on the type of coating, they undergo different pre-treatment processes and are finished in the colour requested or sealed with a clear varnish. Aluminium strips with a single-sided coating are provided with a protective coat of varnish on the rear side. Only highquality stove enamels which have a polyester, PVDF or CFTE base are used in order to achieve a weather-resistant and colourfast coating.
The coil coating process is monitored in accordance with the standards of the ECCA (European Coil Coating Association). Important criteria here are: colour tone, degree of shine, thickness of varnish, hardness of varnish, adhesion of varnish and malleability. Long-duration tests such as acid salt spray tests, QUV B tests, condensation tests in an SO2-saturated atmosphere and outdoor exposure tests in aggressive environments are also carried out.
