Abstract
The solvent fluorine resin paintings are widely used for the surface finish of the aluminum alloy building materials for the long-term durability. In Japan, the powder coatings which doesn't contain the solvent are remarkable, because of the VOC exhaust problem.In the last presentation,we gave an account of the evaluated results about the cured powder coating's film on the aluminum alloy. We experimentally made the powder coating by adding oriented thermosetting fluorine resin with high weather resistance to polyester resin. This study is advanced aiming at practical use. In this report we present next three matters,1st:The outdoor weathering test results for three years in Okinawa.2nd:The evaluation for practical use by the large-scale painting material.3rd:The verification of mechanism that fluorine resin make the transition to surface layer.
