I have heard that DIR dictates that a backplate must be stainless steel? Is this so?
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Boogie711:That's not what you asked. You just asked if it had to be SS.
But yes - I don't think anyone would deny that Aluminum is more durable than plastic, correct.
diverkim:But I wonder just how durable and tough plastic has to be?
Spectre:A buddy of mine once got on the boat trying to figure out what was wrong with his rig. The ABS plate had broken through at one bolt point, and was almost gone on the other bolt point. He was probably about 1/2 inch from the whole thing falling apart on him.