The quality of the pre-treatment is critical to the final result of the powder coating process. The surface pre-treatment at Indulak in Denmark is handled in a 56 meter long spray tunnel. The treatment is done according to the GSB AL 631 standard. The aluminum workpieces go through the following treatment steps:
The rinse water is lead through the line in a reverse cascade rinse to minimize the consumption of rinse water. Furthermore, the used rinse water is recycled over two parallel demineralizers to ensure continous operation. Fresh make-up water is added by reverse osmosis unit.
Reference ID: 134234
Industry: Surface treatment industry
Application: Rinse water