The yard / Reuse guides / G-01
Reuse guide 01 - bin B-04 stock
Stripping a painted door without losing its face
Forty panel doors came off a school corridor and leaned into bin B-04. Half of them are worth stripping; the other half are worth paint. This is how the yard takes the paint off the good ones without taking the face off with it. The method is slow on purpose. Fast methods are how a hundred-year-old door ends up looking like a piece of furniture that has been in a fight.
The paint is not the enemy. The hurry is.
Assume every door from a building that old carries lead paint, because on balance it probably does. That assumption changes two things: you do not sand dry, and you do not use an open flame. Everything else is patience and a scraper that has been sharpened this year rather than last.
The strip, in order
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Take the door off and lay it flat
Two sawhorses and a pair of battens across them. Remove every piece of hardware - hinges, latch, strike, the escutcheons people forget - and put it in a bag labelled with the door. Paint the hinge side of the bag too; a door that goes back on the wrong side never hangs right again.
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Assume lead and dress for it
Respirator rated for lead dust, gloves, long sleeves, and a drop cloth that gets folded into a bag at the end of the day. No dry sanding, no torch, no burning. Work outside or in a cross-draught, and keep children and dogs out of the space until the cloth is bagged.
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Warm the paint, do not cook it
Heat gun on medium, moving steadily, about a hand's width ahead of the scraper. You want the film to blister and lift, not to smoke and run. Smoke means you are scorching the wood underneath, and scorched wood will show through every finish you ever put on it.
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Lift with the grain on the flat panels
Pull scraper behind the heat, following the grain, taking off what lifts and leaving what does not. Several light passes beat one hard one. When the scraper starts to chatter, the paint is cold; warm it again rather than leaning on the blade.
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Do the mouldings last and by hand
The stuck and ovolo mouldings are where a door loses its face. Heat them briefly, then work with a card scraper and a hooked pick, never with a steel edge dragged along a profile. If a moulding is fragile, leave the paint on it. Painted moulding is a door; ruined moulding is firewood.
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Get the corners with a folded edge
Panel corners hold the most paint and the most dust. Fold a card scraper to a point, or use a cabinet scraper cut to fit the corner, and work in short strokes out of the corner rather than into it.
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Stop the moment the grain fuzzes
Fuzz means the fibres are tearing and you are removing wood, not paint. Stop. Let the door cool, mist it lightly with water, wait ten minutes, and come back with a sharper blade and less pressure. A dull scraper is the single most common reason a stripped door looks tired.
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Hand-sand with 120, then tack it off
With the grain, by hand, lightly, only where the scraper left a mark. Then a tack cloth and a damp rag, and let the door dry. Do not use a random-orbit sander on a panel door unless you enjoy explaining the swirl marks later.
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Seal it this week, not next month
Bare wood drinks moisture out of a Dallas afternoon and moves. Prime or oil within a few days of finishing the strip, and keep the door flat and out of the sun until it goes back in its frame. A door left bare for a season will cup, and nothing you do after that will straighten it.
When the yard says leave the paint on
If the paint is sound, even, and not peeling, and the door is going back into service, paint over it. Stripping is for doors where the face is the point - a moulded panel, a quarter-sawn rail, a door that has to match three others in a hallway. Otherwise you are adding work and risk for a look nobody will notice.
The whole job is about six to eight hours for one door with two faces, and the last hour of that is the corners and the mouldings. Budget for it. The doors in B-04 have waited forty years; they can wait until you have a free day and a sharp blade.