Stripping old varnish or shellac from very old kitchen cabinet doors and drawers can be a labor-intensive task, but there are chemical products available that can help minimize the amount of sanding required. Here's a step-by-step guide to assist you in the process:
Materials you will need:
- Safety goggles and gloves
- Drop cloths or old newspapers
- Plastic wrap or garbage bags
- Paintbrush or paint roller
- Paint scraper or putty knife
- Chemical stripper (either solvent-based or caustic-based, see below for more details)
- Old rags or shop towels
- Neutralizing agent (if required by the specific stripper you're using)
- Fine steel wool or scrubbing pads
- Mineral spirits or denatured alcohol (for clean-up)
Step-by-step process:
Prepare the workspace: Lay down drop cloths or old newspapers to protect your work area from drips and spills. Also, ensure good ventilation in the area by opening windows and using fans.
Remove hardware and doors/drawers: Take off any hardware such as handles, knobs, and hinges from the cabinet doors and drawers. This will make the stripping process easier and protect the hardware from damage.
Choose the right stripper: There are two main types of chemical strippers you can use: solvent-based and caustic-based. Solvent-based strippers are generally milder and safer to use, but they may require more time and multiple applications. Caustic-based strippers are more aggressive and can work faster but can be more hazardous, requiring extra precautions. If you choose a caustic-based stripper, be sure to follow the manufacturer's safety guidelines.
Apply the stripper: Using a paintbrush or paint roller, apply the chemical stripper evenly on the surface of the cabinet doors and drawers. Make sure to work in a well-ventilated area and follow the manufacturer's instructions regarding application and safety.
Wait for the stripper to work: The stripper needs time to soften the old varnish or shellac. Follow the manufacturer's instructions for the recommended waiting time. Typically, it takes around 15-30 minutes for the stripper to start working.
Scrape off the old finish: After the waiting period, use a paint scraper or putty knife to gently remove the softened varnish or shellac. Take care not to dig into the wood; use gentle, controlled movements.
Wipe away residue: Use old rags or shop towels to wipe away the loosened finish and stripper residue. You can use mineral spirits or denatured alcohol to help clean up any stubborn bits of old finish.
Neutralize the surface (if required): Some chemical strippers may require you to neutralize the surface after removing the old finish. Follow the manufacturer's instructions for this step, as it ensures the stripper's residue is fully removed from the wood.
Final sanding (if necessary): While the chemical stripper will minimize the amount of sanding required, you may still need to do some light sanding to achieve a smooth surface. Use fine steel wool or scrubbing pads to sand the wood gently.
Clean up: Dispose of used rags and materials properly and clean any tools you used with mineral spirits or denatured alcohol.
Important safety precautions:
- Always wear appropriate safety gear, including safety goggles and gloves, to protect your skin and eyes from chemicals.
- Work in a well-ventilated area to avoid inhaling fumes.
- Read and follow the manufacturer's instructions and safety guidelines for the specific chemical stripper you choose.
- Keep children and pets away from the workspace during the stripping process.
Remember, stripping old varnish or shellac can be a time-consuming and messy task, but with the right chemical stripper and proper technique, you can achieve good results while minimizing the amount of sanding required. Always take your time and prioritize safety throughout the process.