Blimey you got through that quick!! I used those discs when i stripped the interior sheetmetal and they are good. Minimal heat, you do get a nice black smoke effect in the air of the garage though as the material breaks down
I must have gone through between 5 to 10 of them.
I used Panther paint stripper from Toolstation (heard that nitromors has got pretty weak as time has gone on due to compliance needs). They do a 1 litre and 4 litre, worth getting the 4 litre if you're doing a car. Works damn quick, especially if you put a large blob on. They tell you to brush on, but i poured straight out of the container that way you get a lot of stuff on the surface in several places and by the time you spread it out with a brush it's already bubbling away.
You made some great progress there having stripped and epoxied it all in one day! I wish i could work that fast
So what's next, flat sand and fill?
p.s glad you got the doors sorted (well, found at least)
Cheers!
Ray
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