Removing old surfaces can be a tedious task. But it's important to remove the wooden surface from all traces
old coats of paint must be thoroughly cleaned, as the residues will later cause stains. Removing old paint or polishing wood can be a relatively easy task if you use chemical paint strippers. However, you have to work extremely carefully to protect your skin, eyes and environment.
An alternative to stripping is the removal of the surface with scraper blades or grinding. However, both are more time-consuming and produce hardly any better results. In addition, peeling or sanding also removes the patina that certain types of wood, such as mahogany, get over time. In addition, the remnants of old coatings are not removed from the depths of the wood pores during sanding, and there is a risk that the surface will become uneven and individual areas will be sanded too deeply. You can also place the workpiece in a specialized leaching plant where it is sandblasted or immersed in an etch bath. In Atzbad, unfortunately, the wood connections of furniture and doors often also become detached. Sand blasting is suitable for complex shaped and carved pieces. If you want to remove the paint yourself, the choice of paint stripper depends on the type of workpiece and the coating to be removed. It's ver-
It is equally easy to distinguish between a wax coating and a varnish coating, but with other surfaces this becomes more difficult.
Strippers are ready-to-use in the trade, they consist of a solvent mixture (usually methylene chloride) and a paraffin additive that delays evaporation and are used to remove shellac polishes, nitrocellulose lacquers, oil and wax coatings. It may be necessary to apply the stripper several times until the old coating is completely removed. Some strippers must be neutralized before the workpiece can be further processed.
Always follow the manufacturer's instructions for use. Remember that some solvent-based stripping pastes contain caustic soda, which changes the colour of many types of wood; only work in a well-ventilated room and never with an open flame. Observe the manufacturer's instructions for storage.
Painting is one of the easiest ways to protect wood and give it colour, but the paint will eventually return to its original colour.
But it's the only way to make sure that your
the coating applied later will be flawless.
. rubber gloves and goggles
. solvent stripper
. glass cups
. old brush
. paint scraper or spatula
Neutralizing agent according to manufacturer's instructions
Wear protective goggles and rubber gloves and ensure good ventilation of the work area, pour a small amount of paint remover into a glass bowl. Using an old brush, apply a lot of paint remover to the surface of the workpiece.
2. the first bubbles appear in the old colour after the time recommended by the manufacturer. Now scrape off the paint with the flat side of the paint scraper in the direction of the grain. In corners and edges you work with the tip of the scratch.
Depending on the thickness of the old coating, you have to apply the stripper again, even inaccessible areas need a second treatment.
4) While the chemical agent is still working in one place, you can scratch off the paint elsewhere. As the remainders are still very etched, pack them thickly in old newspapers and put them in the special waste.
5. depending on the paint stripper, neutralise the wood surface with clear water, turpentine or a mixture of soda and water. Follow the manufacturer's instructions on the packaging and wear rubber gloves even now.
Tips and Tricks
If you use a paint remover that makes the stain bubble-free, apply a second coat and press the blisters again so that the stain will come into contact with the substrate again.
Apply a thick layer of paint and lightly tap the following layers to make sure that there are no residues of the paint stripper at the end. They react otherwise
later with the surface treatment.
Remember to take off the watch, some means may attack the bracelets or the glass.
Chemical agents can be expensive and must be treated with utmost care because of their hazardous solvents. The purchase of a hot air gun is a more environmentally friendly solution and is worthwhile if you want to work on several objects.
Removing old varnish from wood is no problem with chemical pickling, but you have to work with the greatest care so that these products do not get into other objects, to the skin or even into the eyes. Some stains attack plastics such as the glass of your watch, so put your watch down and work only in well-ventilated rooms, avoid an open flame and follow the manufacturer's instructions.
. rubber gloves and goggles
. glass container
. old brush
. scraper or paint spatula
Apply the product like paint with a brush. Protect your hands with rubber gloves and your eyes with a protective glove.
Goggles and work only in a well ventilated room, pour a small amount of the stripper into a glass bowl.
Always work on a limited area.
When the paint becomes soft and detaches from the base, begin to draw the flat side of a paint scraper over the surface, always in the direction of the grain. You may have to repeat this process two or three times, as modern coatings adhere very well. Dip the ink residues soaked with chemicals into thick packs of newspaper and dispose of them in an environmentally friendly manner.
Health and safety:
Wear rubber gloves and protective goggles.
Wash off splashes of water on the house immediately,
Be careful when opening the can with the paint stripper, as possible overpressure can cause the agent to spatter out.
Only use pickling agents outdoors or in well-ventilated rooms.
Stripping agents can cause dizziness.
Wrap the greasy colour paste thickly in newspaper to dispose of,
Do not smoke trnd avoid any open fire:
Before touching the workpiece, make sure that the last remnants of the stripper are also removed.
Wear a dust mask or respirator mask with filter when using a paint remover from the aerosol can.
Working with gel
. gloves and goggles
. stripping gel
. old brush
Steel wool or pot cleaner
Instead of liquid paint remover, you can also use paint remover in gel form. As they adhere to the surface, they are particularly suitable for vertical surfaces.
Remove the stripping gel from recesses and corners with a piece of steel wool or a pan cleaner. They probably need more than one, because they clog with the gel. Dispose of them carefully.
Stripper from the spray can
. rubber gloves,
. goggles and dust mask
. spray can with paint remover
. fine copper wire taps
. cotton cloth
1. for decorations and other places that are difficult to reach, a paint remover from the spray can is the solution. However, you must wear a protective mask to avoid inhaling the mist and cover everything that is not affected.
2. if the stripper has reacted, remove the old paint with the fine copper wire brush. How to get the varnish
even from corners that are difficult to access. Finally, neutralize the workpiece by washing it with clear water and rubbing it dry.
AFTER THE BATTLE:
Pickling often reveals damage that was previously hidden under generations of paint layers, glue connections may have been broken or some areas may need to be cemented. Finish the stitching with sandpaper, starting with IOO granularity and then becoming finer to 240, remember that some types of wood will get a patina after aging, which would be removed by too much scoring, check the surface for paint residues or dents before touching on.