Want to give a new life to a piece of furniture or an object made of varnished wood? Over time, varnish can become dull, yellowed, or simply no longer match your interior decor. Good news: it is entirely possible to paint varnished wood as long as you follow a few key steps.
In this complete guide, we will detail the preparation, application, and finishing steps needed to achieve an aesthetic, durable, and resistant result.
Preparing varnished wood before painting
Lightly sand or scuff
Even though some tutorials claim you can paint directly over varnished wood, it is highly recommended to scuff the surface to improve paint adhesion.
- Use medium-grit sandpaper (120 to 180).
- Sand lightly, without trying to completely remove the varnish.
- Dust off thoroughly after sanding.
👉 This step ensures that the paint adheres properly and prevents the risk of peeling or premature flaking.
Clean the surface
First of all, it is essential to remove all impurities from the varnished wood: dust, grease marks, and residues of cleaning products.
- Use a mild cleaner or degreaser, such as Savon Noir SN800
- Then carefully wipe with a clean, dry cloth to achieve a smooth surface.
👉 A poorly cleaned surface will reduce paint adhesion and compromise the durability of your project.
Apply a bonding primer
For the paint to adhere effectively to varnished wood, applying a bonding primer is highly recommended.
- Choose a suitable product, such as Primaire Bouche Pores BP400 (or Primaire Anti-Tanins PAT400 for tannic woods).
- Apply it evenly with a brush or roller.
- Allow it to dry completely before painting.
👉 This step helps seal the surface, promotes adhesion, and ensures a smooth finish.
Painting over varnished wood
Choose the right paint
The choice of paint depends on the desired look and technical requirements.
Acrylic paint (water-based):
- Easy to apply.
- Dries quickly.
- Available in several finishes (matte, satin, glossy).
- Eco-friendly (low VOC content).
Oil-based paint (glycero):
- Thicker and more covering.
- However: strong odor, slow drying, high solvent content.
👉 For indoor projects, choose a wood paint such as Peinture Bois Intérieur PBI900, specially formulated for an aesthetic and durable finish.
Applying the paint
Proper application is done in several steps:
- Stir the paint before use to ensure an even color.
- Apply a thin first coat with a suitable brush or roller.
- Let it dry according to the manufacturer’s instructions. (Optional) Lightly sand with very fine grit between coats to improve the finish.
- Apply a second coat for a uniform and durable result.
👉 For best results, work in a well-ventilated room at room temperature.
Finishing and maintenance
Seal the paint (optional)
To protect the painted surface from scratches, stains, and wear, you can apply a clear varnish.
- Recommended product: Vernis Bois Incolore VI500.
- Available in matte or glossy, it provides invisible protection while preserving the color of your paint.
Maintaining painted wood
To preserve the shine of your painted furniture:
- Clean regularly with a soft, slightly damp cloth.
- Avoid abrasive products that could dull the paint.
- Renew the protective finish if necessary after several years.
Painting varnished wood is an excellent way to give a piece of furniture a makeover or modernize an interior without a costly investment. By following the steps—cleaning, light sanding, primer, painting, and finishing—you will achieve a result that is both aesthetic and durable.
👉 For your projects, choose suitable products such as the BP400 Primer, the PBI900 Interior Wood Paint, and the VI500 Clear Varnish available on the Anova Bois website.
FAQ: Painting varnished wood
Light sanding (scuff sanding) is highly recommended to improve paint adhesion, even if some paints claim they can be applied directly.
Opt for a paint specifically designed for wood, such as an acrylic paint or PBI900 Anova Bois.
Yes, a primer such as Primaire Bouche Pores BP400 is highly recommended to promote adhesion. And for tannic woods, we suggest using Primaire Anti-Tanins PAT400.
It is possible with certain specific paints, but the result is likely to be less durable. A minimum of preparation is always recommended.
By applying a clear varnish such as Vernis Meuble VM500, which protects against wear and stains.
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