We took off the front doors and blocked off the vestibule so the stripper can get some warmth while it incubates. In the close up picture you can see the stain which has become liquified, leaking through the cracks in the paint. Lead paint cracks differently than latex paint. It dries out and cracks in squares. The stripper quickly went through the cracks and penetrated to the wood, but the lead enamel paint from 1929 is still holding on light to the wood. Every day we peel back a little to see how far along the stripper has gotten.