The old windows have sometimes accumulated so many layers of paint that they must be stripped so that they find a beautiful appearance. The chemical stripper is the most appropriate for this work because the heat of a torch would be fatal to the windows if you do not want to replace them (unlike this site).
- Scrubber brush
- Rubber gloves
- Metal brush, tongs
- Spatula or coating knife
- Knife to remove
- Gel stripper
- Nail set
- Clean the rabbet
- Strip the carpentry
Clean the rabbet
1. A real window renovation can really be done only after the removal of the old windows. Here, the window is equipped with cathedral glasses which will be replaced on this occasion by normal clear windows. The old putty is removed with a knife to remove. If it adheres too much, soften it with the flame of a blowtorch. Do not bring the flame too close to the glass or you will see it break.
2. With the glazing removed, dust off the rebate. A good brushing will make you realize if it is in good condition. It should form a right angle and have a depth of about 10 mm for a width of 15 mm. The first brushing (scrub brush) reveals the remains of mastic in the rabbet.
3. Blow up the remnants of putty with a wire brush. Be careful not to mark the wood, especially if it is soft enough. The rebate must be perfectly clean. Check that there are not any of the glazier's points that held the old glazing. You will tear them eventually with a pincer. If the oxidation has ruptured them at the edge of the wood (the case is frequent), do not try to remove them because they do not have a catch: push them in the wood using a nail-chaser.
Strip the carpentry
1. Begin deep stripping of the layers of successive paintings that cover the wood. Two methods: flame burning a soldering lamp (with the risk of damaging the wood) or with a stripper. We opted for the second solution. Use a gel stripper that you will spread with a brush. In a few minutes the product acts, the paint blisters and no longer adheres to the wood. Work on the leaf still placed horizontally to allow the stripper to penetrate into every corner of the carpentry.
2. Remove the "coarse" layer of paint with a spatula (or a coating knife) that you will use when pushing it.
Warning to hold it parallel to the wood, so as not to break it, the latter being very softened by the stripper. During all stripping operations, wear rubber gloves to avoid contact with the skin. In case of splashing in the eyes, wash immediately with clear water.
3. For a good renovation, the wood must be completely exposed.
Warning oak windows on which the painting is deeply encrusted. Brush the wood with a scrub brush or nylon bristles that will not be attacked by the stripper. The wire brush is to be avoided, it would irreparably mark the wood.
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