I'm building an engine stand for a buddies airboat, using 4130 tubing, 1" and 1.5" x .120 wall, using ER80S-D2 filler. Question is this, after completion he plans to have it powder coated. I'm afraid that the heat from baking the powder coat (450 F) is going to have a bad affect on the tubing and/or the welds. Do I have a valid concern? If so do any of you know of anyother rust preventive coatings (other than paint) that we might be able to use instead?
Thanks in advance.