We offer both galvanized doors and galvannealed doors, along with galvanized frames and galvannealed frames at Mesker. So, we think it's important that you know about each of them. Both galvanized steel and galvannealed steel are "hot dipped" into a bath of molten zinc that
produces a pure zinc coating on their steel surfaces.
Galvannealed steel receives a second step. The zinc-coated steel is super heated in an oven so that a zinc coating and the top layer of the steel surface meld together to form a zinc-iron alloy (approximately 90% zinc and 10% iron).
Why do we take that second step to "galvanneal" the steel for our galvannealed doors and galvanneled frames? For three good reasons - painting, welding and scratch resistance. Try painting or welding a galvanized door and galvanized frame - the result will probably be a mess. Galvanized door and galvanized frame steel is only available from Mesker unprimed. Galvannealed doors have more adhesive surfaces, so they're simple to paint and to weld. Third, a galvanized door or galvanized frame coating is soft and easily scratched. A galvannealed door and galvannealed frame coating is very hard, and not as easily scratched. We invite you to ask us more about choosing a galvannealed door and galvannealed frame or a galvanized door and galvanized frame.