Paint stripping without a D/A

Those flap discs will heat up your metal and worp it easily. You can strip with 80 grit on a DA, but on that right angle grinder and an 80 grip flap it will leave bad scratches that will take lots of sanding with finer grit to get rid of those scratches.
Paint striper is a nasty *** mess. Not so bad if original paint and willing to come loss. Like said, it has to be neutralized good, never get it into any seams!! It has to stay wet long enough, cover it with plastic, temp and humidity has an effect. Be prepared to cuss the stiff. Sanding with a good DA and a big compressor is best IMO.