Lime washing beams, sometimes referred to as liming or even pickling, involves applying a lime-based treatment to the wood. The goal is to highlight the grain, creating a textured, whitewashed effect. This process focuses on working the lime wash (or wax, depending on the desired look) into the wood grain and then wiping away the excess from the surface.
Here's a breakdown of how to lime wash beams:
1. Preparation is Key
- Clean the Beams: Remove any dirt, dust, old finishes, or cobwebs. Use a stiff brush, vacuum, or mild detergent if necessary. Ensure the beams are completely dry.
- Assess the Existing Finish: If there's a thick, glossy finish, you might need to sand it down to allow the lime wash to penetrate the wood. If the existing finish is thin and porous, you might be able to apply the lime wash directly.
- Safety First: Wear gloves and eye protection when working with lime wash, as it is caustic. Ensure adequate ventilation.
- Gather Your Materials: You'll need lime wash (or liming wax), a brush (a stiff-bristled brush is best), clean rags, a bucket, and potentially sandpaper (depending on the existing finish).
2. Applying the Lime Wash
- Mix the Lime Wash (if necessary): Some lime washes come pre-mixed, while others require dilution with water. Follow the manufacturer's instructions carefully.
- Apply Generously: Using your brush, apply a liberal coat of the lime wash to the beam. Work it into the grain. Don't be afraid to over-apply.
- Let it Sit (Briefly): Allow the lime wash to sit for a few minutes (check the product instructions for specific timing). This allows it to penetrate the wood grain.
3. Wiping Back the Excess
- Wipe Away Excess: Using clean rags, wipe away the excess lime wash from the surface of the beam. The goal is to leave the lime wash primarily in the grain, highlighting its texture. You may need to wipe several times to achieve the desired effect.
- Control the Look: The more you wipe, the less lime wash will remain on the surface, resulting in a more subtle effect. Conversely, less wiping leaves a more pronounced, whitewashed look.
4. Optional Steps
- Second Coat: If you desire a more intense effect, you can apply a second coat of lime wash, repeating steps 2 and 3.
- Sealing (Optional): Some people choose to seal the lime-washed beams with a clear matte sealant to protect the finish and prevent dusting. However, this is not always necessary and can change the appearance of the lime wash.
- Waxing (Alternative): For a different approach, use liming wax. Work the wax deeply into the grain. Then, wipe the surface clean, leaving the wax only in the grain. This highlights the grain without a thick, whitewashed coating.
Considerations
- Type of Wood: The type of wood will affect the final result. Oak, with its open grain, is particularly well-suited for lime washing.
- Desired Effect: Experiment on a small, inconspicuous area first to determine the best application technique and the amount of wiping required to achieve your desired look.
- Clean Up: Dispose of rags and used lime wash properly, following the manufacturer's instructions.
