What is the best way to remove the last bits of softened paint in the panel crevices after applying paint stripper, shown above at right?
I'm stripping 100+ years of paint (including lead paint) from wood doors, jambs and portals.
I've applied multiple passes of Dumond SmartStrip; each time I've covered the surface with either Dumond's paint stripping paper or plastic wrap, similar to the technique mentioned here, and waiting a full 18 hours before using a plastic putty knife to scrape off the liquified paint. Interestingly, in my half-and-half tests (below, second image from right) between Dumond paper and regular plastic wrap, the plastic wrap consistently worked a bit better, helping the stripper to soften and remove more paint.
Here's a sequence of four such passes on a door:
I've been using paint prep TSP-replacement cleaners, but it's not that effective on the paint while discoloring the wood, as shown below on this jamb:
As shown in the right-most photo, the cleaner is removing the 100 year old finish under the layers of paint.
I'm worried that the cleaner is actually discoloring the wood, rather than leaving a neutral bare surface that I could sand and stain.
Does anyone have any suggestions for a minimal regimen to remove the last bits of paint and stripper? This is oil-based paint with lead, so water cleanup doesn't do much.
Am I right to be worried that the wood will be damaged by Krud Cutter / Goof Off / et cetera, or can I use those solvents to scour the surface and then restain without a sign of a struggle?