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“Very effective!”
Do you want to give a second life to varnished, yellowed, or painted wooden furniture? Stripping is often an essential step to restore the wood to its raw state before applying a new finish.
Here is a clear and effective guide based on a project completed at Colobar: stripping an old oak bench covered with a thick, old varnish.
What you need for effective stripping
Prepare your workspace and gather the right materials:
First and foremost, a word on safety
Working with a stripper requires some basic precautions:
- Wear resistant gloves, safety glasses, and a mask.
- In case of skin contact: rinse with a damp cloth.
- In case of eye contact: rinse thoroughly with water for 20 minutes.
- If inhaled or ingested: call a doctor or Info-Santé. Do not induce vomiting.
- Keep a clean cloth and a bucket of water handy to quickly wipe away any splashes that come into contact with your skin.
- Work in a cool, shaded, well-ventilated area.
- Keep products away from heat sources (flames and sparks)
- Keep out of reach of children.
01
Sanding to properly prepare the surface
Start with a quick sanding using 60 or 80 grit paper to dull the varnish or paint. This allows the stripper to penetrate better.
IMPORTANT: Always sand in the direction of the wood grain. Cross-grain sanding marks can remain visible after finishing.
02
Applying the stripper
Pour the stripper directly onto the surface and spread it with a bristle brush.
If you cannot pour the stripper directly onto the surface (e.g., on moldings or vertical areas), transfer it to an aluminum plate, then dip your brush into it.
NOTE: Avoid nylon or polyester brushes: most strippers will melt them.
03
Removing residue
After 15 to 30 minutes, you will see the varnish or paint soften. Use your scraper to remove the finish layer without damaging the wood.
Often, a second application is necessary to properly dislodge residue embedded in the grain or corners.
For details and moldings, synthetic stripping pads are perfect:
- More durable than steel wool
- Reusable
- Do not leave metallic residue (no risk of rust)
04
The neutralizing bath (stripper neutralization)
Once stripping is complete, some product often remains in the wood pores. It must be neutralized to prevent reactions with the new finish.
- Use methyl hydrate (also called wood alcohol): it’s fast, has no strong odor, and evaporates in seconds.
TIP: Some brands recommend rinsing with water, but moisture raises wood fibers and can warp thin pieces. Use with caution.
05
Finish sanding
When the wood is dry, sand in three steps:
80 â 100 â 120 (or up to 220 if you want an ultra-smooth surface).
If you are working on an antique, avoid over-sanding to preserve the patina, which is part of the piece’s value.
06
Safe waste disposal
Stripper residue, rags, pads, and accessories impregnated with stripper are flammable. They should not be stored indoors or within 4 meters of a dwelling.
IMPORTANT: Do not leave impregnated pads or rags in a closed workshop. Store waste in an airtight metal container, outdoors, away from the house. During the annual collection of household hazardous waste (HHW), bring your container clearly labeled “Stripper Residue.”
Strip like a pro, starting at Colobar
If you need an effective stripper, suitable tools, or advice for your project, come see us in-store. We have everything you need and, most importantly, we know exactly what to recommend based on the type of wood or the finish you want to achieve.
Do not hesitate to consult our blog section dedicated to furniture finishing to learn more about the subject. Consult the Wood Treatment section to discover new finishing products for your freshly stripped furniture!
Products found in this article.
Gel Wood Stripper
Methyl Hydrate
Wooden Stripping Scraper
Q&A
Q- How do I know if my furniture is worth stripping⊠or if it's too damaged?
Furniture can look very worn on the surface while still being perfectly salvageable. What you need to check is primarily the condition of the wood beneath the finish: presence of rot, lifted veneer, deep cracks, or sections swollen by water.
If the structure is solid, stripping can often completely transform the furniture. Even yellowed varnish or very thick old paint does not mean the underlying wood is lost.
Q- Why do some areas remain sticky after stripping?
This often happens when stripper remains in the wood pores or moldings. The finish you apply over it may dry poorly, become sticky, or stain.
The problem is particularly common on very porous woods like oak. In this case, it may sometimes be necessary to perform a more thorough neutralization and allow more drying time before sanding or applying a new finish.
Q- Can stripping damage wood veneer?
Yes, especially on old furniture. Many antique pieces are not made of solid wood: they are covered with a very thin veneer.
Overly aggressive sanding or a rigid scraper can quickly go through the veneer. If you suspect your furniture is veneered, work more gently, avoid overly powerful sanders, and limit aggressive sandpaper.
Q- What if the old varnish barely comes off?
Some old industrial finishes or catalyzed varnishes are extremely resistant. If the product barely softens after 30 minutes, it doesn’t necessarily mean you’re doing something wrong.
In many cases, you need to:
apply a more generous coat;
allow it to act longer;
repeat applications several times;
or use a more powerful stripper adapted to the type of finish.
Temperature also plays a role: a stripper works much less effectively in an environment that is too cold.
Q- Why did my wood change color after stripping?
This is normal in several situations. Some woods naturally darken with age and regain a lighter color once stripped. Conversely, some strippers can also react with wood tannins and slightly alter the shade.
You may also discover color differences hidden under the old varnish: areas exposed to the sun, old repairs, or sections replaced over time.
This is one reason why a finish test is always a good idea before treating the entire piece of furniture.
Q- Can furniture be stripped indoors?
Yes, but only if the space is very well ventilated. Even less aggressive strippers release fumes and can impregnate surrounding fabrics, curtains, or textiles.
To avoid unpleasant surprises:
- protect the floor with a drop cloth;
- work near an open window;
- use a fan to circulate the air;
- and avoid humid or poorly ventilated rooms.
If you are working on a large piece of furniture, the garage often remains the simplest option.
