VERFAHREN ZUM BESCHICHTEN EXTRUDIERTER ALUMINIUMFORMKOERPER

摘要

Shaped aluminum bars fresh from an extruder machine are coated with a specific organopolysiloxane composition while remaining uncooled and staying at temperatures not lower than about 250 DEG C, or at a temperature between about 550 DEG and 250 DEG C. The thus coated aluminum bars are then, preferably, subjected to annealing. The coatings formed on the surfaces of the aluminum materials have a superior resistance to attack by chemicals, weather, stains and heat as well as excellent adhesion and mechanical properties.