The RV-10 has 4 unique hinges for the doors. They are plain 'ol steel and are partially exposed to the elements. I'm tempted to have them chrome plated to avoid the chipping/rust that (I think) would happen due to the relative motion of the hinge halves if I painted the hinges. On the other hand, I've read about hydrogen embrittlement, but don't really understand it. What I wouldn't want to do is create a structural problem in the hinges with the plating process - the hinges are part of a fairly weak door attachment system and I don't want any of them to crack/break. So, what questions do I ask at a chrome plating shop to make sure they know what they are doing and to avoid hydrogen embrittlement?