Alupur® must be transported and stored in a sheltered, moisture-free environment.
Alupur® can be bent, roll formed and seamed without risk of damaging the coating, provided that certain precautions are taken, particularly with regard to bending radii.
In order to avoid cracking, it is recommended to limit the radius of curvature to three times the sheet thickness when the thickness is less than 1.25 mm, and to four times the sheet thickness when the steel strip is thicker than 1.25 mm.
The aluminium coating precludes direct contact with:
- Copper and its alloys
- Uncoated steel
- Run-off water that has been in contact with these materials
Please consult the CSTB Technical Advice document 5/85-502.
In order to ensure that Alupur® products retain their appearance over time, it is recommended to use fasteners with high durability, made from materials such as stainless steel or aluminium.
Alupur® can also be painted after appropriate degreasing and chemical surface treatment.