OK, I'll try to answer all the questions (good job I have dual monitors
).
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That stripper is pretty good, how long do you leave it on for and removal is done how? Never used stripper before hence the dumb questions.
The paint stripper we use is pretty strong stuff, stronger than your DIY store Nitromors stuff, that barely does anything. We leave it covered for 20-30 minutes. We use a normal paint scraper for removal...to start with.
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What's the thinking behind taking what looked like sound paint off?
I believe you've asked this before Jon. See below.
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I think Mart has taken most of the resto's to bare metal prior to going to the body shop. It will help keep costs down and I suppose that paint quality/type may be unknown and bare metal might prevent a reaction. Possibly.
Ken is correct. But the main reason I do it is because you just don't know what's under the paint. You can see a few examples in my previous resto threads. Take the last resto, VHK, the rear panel looked fine but once I started to remove the paint it became obvious there was a lot of filler underneath and indeed it needed a new rear panel. Also look at the PUS resto. The paintwork on the 1500 I used for the reshell looked really good. But when I got to the left rear passenger door, a half inch thick slab of filler was hiding a nasty dent that could easily (and was by my sprayer) have been pushed out.
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That paint stripper looks to be most effective (the chemical one, not the human one)...!!!
The plastic bad technique seems to work a treat... Does this allow the chemicals to 'sweat' the paint off a little better than it would if exposed to the normal atmosphere?!
The plastic bag thing is a tip I got from my sprayer. You are correct in what you said.
Now I need to insert a caveat here regarding the paint stripper. If you put it on paint which just has a primer under it, it works pretty well and peels off. But, if you have filler of any type under the paint it's still a bit of a pig to remove, ask Mary. You may have to do it two of three times. On the pics below the front door has just had the plastic removed and as you can see, not a lot of the paint has peeled off. The pic of the rear door is the best we could do after one coat of stripper. We applied another coat and got a bit more off but then I moved in with the knotted wire brush to remove the rest.
The main reason I use paint stripper is because it makes a lot less mess, not necessarily because it is quicker. When I stripped JYD I used sanding discs and the dust got everywhere, about an inch deep in places.
Pics of the bad bits so far...
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1997 TVR Chimaera 450