Paint wooden windows - this is how it works


After a few years, wooden windows always need a new paint job. Permanent over-glazing is harmful to wooden windows. What you have to consider when repainting, how to sand and what else is important, explains the following comprehensive guide.

Important before painting

  • Correct grinding
  • Mending the windows
  • Osh

Correct grinding

Before painting, the window must be completely removed from old paint layers. Flaking paint can be easily removed with the spatula. Grinding must be done until all old layers of paint are completely removed.

It should as possible even the top layer of wood still be sanded with.

Paint wooden windows - this is how it works: wooden

Before sanding, the puttied areas should already be masked with a painter's crepe. Glass panes should be covered so that the sanding dust does not scratch.

Alternatively, it is also advisable to recut the windows in the course of repainting. Then you can first remove the old kit residues completely and remove the discs before sanding and set aside. The grinding of the window sash is also easier.

In difficult to access areas and in the folds and corners you have to rework by hand, a good alternative to provide multi-sander with correspondingly small essays.

Removal of sticky paint layers

Some types of paint become sticky when trying to sand them. These types of paint are unsuitable for windows, especially when renovating older buildings you will find them frequently. There are two ways to remove it: burning and shaving off.

For burning you can use a blowtorch. But you should be extremely careful, and have also removed the glass and the putty before. Thoroughly sand again after firing.

Shaving with the smallest possible removal (about 0.5 to 1 mm) can also remove the non-sandable layers of paint. A secure edition and a little skill in guiding the planer but it is necessary.

In both methods, the corners and folds must be reworked by conventional grinding.

  • Mending the windows

Chipped corners, cools and holes can be compensated with wooden spatula. After hardening the wood filler (it is ready to buy) once again grind finely.

  • Osh

When grinding, a dust mask and gloves are recommended. When painting, ensure that there is plenty of draft and fresh air so that no dangerous vapors can accumulate.

Painting step by step

  • primer
  • paint
  • fine and very sandpaper
  • masking tape
  • possibly putty
  • possibly wood putty
  • Grinding machine (triangular grinder, multi-sander)
  • spatula
  • vacuum cleaner
  • Paint roller, brush
  • Working blocks as a support
  • Dust mask

1. Preparation

Unhook the window sash. Place on the work stands with a blanket underlay. Remove peeling paint with a spatula. Completely remove the putty with a knife or spatula and remove the windows, or mask the putty and window panes. Mask metal parts clean.

2. grinding

Thoroughly sand off old paint coats on the window sashes and on the window frame, or burn off or shave off, and then sand again finely. Repair damaged areas with wood filler. Once again grind fine

3. Painting

Apply the primer and let it dry. Apply thinly the first layer of lacquer with the paint roller. Follow the instructions for use. In some cases, the first layer of lacquer must be applied diluted. Use brushes for the corners. Sand very finely after drying and carefully remove the sanding dust. Apply the second coat of varnish.

4. Finish

If necessary, rewind, hang window sash.

Tips & Tricks

A very durable wooden putty can also be made from sanding dust and wood glue. Add so much sanding dust to the glue until you get a tough, malleable mass.


Video Board: How To Paint a Wood Window Sash