I am having my car media blasted and have talked to 2 Pros who say I can have my car media blasted and leave it bare metal while I replaced 1/4's,trunk,shave firewall and few patches.The car will be in a closed garage but I will probably open main garage door from time to time and I live in North Carolina. I just wanna make sure this is ok to do as body work might take 3 months. I just wanna work with clean metal so blasting then replacing is what I perfer. Any advice or tips from you pros?????
As long as you wipe it down after you touch the metal with your hands, get water on it, etc. You can keep it in bare metal for quite a while with the humidity low.
what do you consider low humidity? Down here it is least 40% humidity i would say or more this time of year but will be garage kept. Also what do you recomm to wipe it down with if touched or work is done? Brandon
You are better to seal it, or you are going to have to blast it twice.
Bare metal starts to corrode in 30 seconds when exposed to the elements.
If you are trying to do your metal work first, why not prime the areas that do not need metal work and leave the repair areas bare..
Then the roof and maybe 1/4 of inside would be in primer!!!!! why not try to work faster and wipe clean each time after working on it?
also what primers do you guys recomm to use?????
If you think that you will not take that long on the metal repairs, leave it bare and do all of your metal work. When all the welding and repairs are done, give all the bare metal a through sanding and cleaning, and coat it in EPOXY, product choice is up to you, just pick a quality product, IE: PPG "DP" line, Sherwin Williams "DTM" line......
Use some etch primer as soon as it is blasted. It will not absorb water and it can be removed with some thinner when you are ready to do the final body work.Usually sold in quarts at the local bs supply store.
It will all depend on what type of media is used to blast the body. If the blaster uses soda or plastic media, you'll have a few days provided the humidity is very low. If they use anyting course like sand or aluminum oxide, you will need to prime it as soon as you get it home. Course media will open the pores of the metal and allow moisture to penetrate deep. It wont show right away, but when it does, it will come with a vengance. Most blasters will use course media in areas where there is visible rust or scaling. What I tell all of my customers is its better to be safe than sorry, etch or epoxy prime it as soon as you get it back from the blaster.
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
media blasting and primer ?????? Pros help me
Linear Mode
