Preventing "Ghosting" in Limewashed Drywall
Limewashing drywall can result in an uneven finish if the wall surface absorbs the limewash inconsistently. This "ghosting" effect reveals the underlying drywall structure.
Cause:
- Drywall has varying absorption rates (paper face, joint compound).
Solution:
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Prime with Water Based Sealing Primer: Apply at least two coats of a high-quality, water-based sealing primer. This creates a uniform base and seals the drywall.
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Patching: For any repairs, prime the patched areas with the water based sealing primer before applying limewash.
Limewash Application for Patched Walls:
- Use a three-step system:
- Water Based Sealing Primer (foundation)
- James Alexander Lime-Prep (bonding primer)
- James Alexander Limewash (1 Coat)
- James Alexander Limewash with Densifer at proper ratio (Finish Coat)
Key Takeaway: Proper preparation is crucial for a successful limewash application. Priming the drywall with a water based sealing primer ensures even absorption and prevents the "ghosting" effect.
Example of "Ghosting". This wall was patched with drywall compound. A water based sealing primer was not used before the Lime-Prep and limewash was applied resulting in the ghosting effect.