Applying gel stain over an existing finish is a popular way to update furniture or cabinets without completely stripping the original coating. As demonstrated in the provided reference, you can apply gel stain on top of an existing finish, leading to a significant transformation that can be very cost-effective (like the example transformation for under 25 Canadian Dollars, noted as cheaper than a can of paint).
Gel stain works differently than traditional stain; it's thicker and sits on the surface rather than penetrating the wood grain. This property makes it ideal for use over non-porous surfaces like existing finishes.
Here's a breakdown of how to use gel stain over an existing finish:
Preparation is key to ensuring the gel stain adheres properly and provides a durable finish. Follow these steps for the best results:
1. Clean the Surface
- Thoroughly clean the surface to remove all dirt, grime, grease, and wax. Use a good cleaner or degreaser appropriate for the type of finish.
- Rinse the surface and allow it to dry completely. Any leftover residue can prevent the stain from adhering.
2. Prepare the Existing Finish
- While gel stain is forgiving, lightly scuffing or de-glossing the existing finish can improve adhesion. Use a fine-grit sandpaper (e.g., 220-grit) or a liquid de-glosser.
- The goal is not to remove the finish but to create a slightly dull surface for the gel stain to grip onto.
- Wipe away any sanding dust or de-glosser residue thoroughly with a tack cloth or damp rag, and let it dry.
3. Apply the Gel Stain
- Stir the gel stain well before and during use (do not shake, as this can create bubbles).
- Apply the gel stain using a brush, foam brush, or lint-free cloth.
- Work in manageable sections, applying the stain evenly.
- For a more opaque look, leave the stain thicker. For a more translucent, traditional "stained" look, wipe off the excess stain after a few minutes using a clean cloth or paper towel, following the direction of the wood grain if visible or desired.
- Apply thin coats rather than one thick coat. This allows for better control and drying.
4. Allow Drying Time
- Allow each coat of gel stain to dry completely according to the manufacturer's instructions. Drying times can vary significantly based on humidity, temperature, and coat thickness.
- Applying a second coat before the first is dry can lead to lifting or unevenness.
5. Apply Additional Coats (Optional)
- If you desire a deeper color or more opacity, apply additional thin coats after the previous coat is dry.
- Repeat the application and drying process until you achieve the desired look.
6. Apply a Protective Topcoat
- Gel stain is not a topcoat; it's a coloring agent. You must apply a protective topcoat to ensure durability and protect the finish from scratches, moisture, and wear.
- Choose a topcoat compatible with gel stain (usually oil-based polyurethane, water-based polyurethane, or a polycrylic). Always test compatibility in an inconspicuous area if unsure.
- Apply the topcoat according to the manufacturer's instructions, typically in 2-3 thin coats, allowing adequate drying time between coats. Lightly sand between topcoats with very fine sandpaper (e.g., 320 or 400 grit) for a smoother finish, wiping away dust before the next coat.
Key Considerations
- Ventilation: Work in a well-ventilated area, as gel stains and topcoats can have strong fumes.
- Test Area: Always test the process on an inconspicuous area first to ensure you like the look and that the products are compatible with the existing finish.
- Coverage: Gel stain offers excellent coverage, often requiring fewer coats than traditional stains over existing finishes.
Using gel stain over an existing finish is a relatively simple and effective method to refresh or dramatically change the look of furniture, cabinets, or trim with minimal effort compared to stripping.
