Remove Undercoating and Seam Sealer
#1
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Remove Undercoating and Seam Sealer
I am in the process of removing the undercoating and as much seam sealer as I can. I have been working on it for quite a long time, and am getting to the point that I will have to pull the subframes and fuel tank to get all of it.
I have weighed only a portion of what I have removed, and have officially confirmed at least 10 pounds. I have almost 4 pounds of seam sealer alone. I would estimate that I have actually pulled at least 15 pounds total. I wish I would have collected all of the material from the beginning to get a real accurate measure.
Some of the material was not possible to collect due to removing some of it with a drill driven brush, much of which is lodged in my eyeballs.
Has anyone here gone through a total undercoat strip? Any suggestions on the best way to get it clean economically and relatively swift?
I have weighed only a portion of what I have removed, and have officially confirmed at least 10 pounds. I have almost 4 pounds of seam sealer alone. I would estimate that I have actually pulled at least 15 pounds total. I wish I would have collected all of the material from the beginning to get a real accurate measure.
Some of the material was not possible to collect due to removing some of it with a drill driven brush, much of which is lodged in my eyeballs.
Has anyone here gone through a total undercoat strip? Any suggestions on the best way to get it clean economically and relatively swift?
#2
From the 949racing blog post about the shell they dipped for Crusher:
"Just got the enduro tub back from Strip Clean in Santa Ana, CA. Was 495 lbs, now 461 lbs."
So they got 34 lbs out of an acid dip. Id say the 80/20 rule would apply here? Maybe 27.2lbs would be removable by tool/dry ice? I'd say 15lbs is a great start without pulling subs.
"Just got the enduro tub back from Strip Clean in Santa Ana, CA. Was 495 lbs, now 461 lbs."
So they got 34 lbs out of an acid dip. Id say the 80/20 rule would apply here? Maybe 27.2lbs would be removable by tool/dry ice? I'd say 15lbs is a great start without pulling subs.
#5
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I need to try the larger size brush. I have been using the brush that sticks straight out. I have a little wheel brush, but it cut in to the metal too much. Perhaps I need one with a softer brush.
I spent a lot of time scraping, and found the best results with wood chisels of various sizes. To get the dynomat material in the drain locations on the floor, on the firewall, and in the trunk, I used a heat gun to soften it followed by a scraper and clean up with WD-40.
I am doing a lot of the detail with steel wool and WD-40 underneath. I think I would like to try some Scothbrite pads.
I spent a lot of time scraping, and found the best results with wood chisels of various sizes. To get the dynomat material in the drain locations on the floor, on the firewall, and in the trunk, I used a heat gun to soften it followed by a scraper and clean up with WD-40.
I am doing a lot of the detail with steel wool and WD-40 underneath. I think I would like to try some Scothbrite pads.
#7
Dry Ice Blast Cleaning | Dry Ice Blasting
it is used in aviation to remove sealant without damaging the aluminum surface. might be costly, but it never hurts to ask for a quote.
it is used in aviation to remove sealant without damaging the aluminum surface. might be costly, but it never hurts to ask for a quote.
#11
Cleaning the bottom of my car I used a wire wheel on an angle grinder and a sand blaster (less effective on undercoating) along with the usual hand tools (wire brush, putty knife, flat screwdriver etc).
I was doing it to remove rust and then paint / re undercoat so I wasn't as fastidious about removal of every last little gram.
Sand blasting made a mess (you will have sand coming out of places days after despite full hazmat suit and mask) and can be frustrating unless your compressor is large. It worked great if you used it in conjunction with a scraper to give it a notch in the material to work with.
I was doing it to remove rust and then paint / re undercoat so I wasn't as fastidious about removal of every last little gram.
Sand blasting made a mess (you will have sand coming out of places days after despite full hazmat suit and mask) and can be frustrating unless your compressor is large. It worked great if you used it in conjunction with a scraper to give it a notch in the material to work with.
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