If you're wondering whether Limewash can be sealed, the short answer is that Earthaus does not offer a dedicated sealer for the Limewash system at this time. We believe that Limewash performs best when left porous and open, allowing the surface to breathe and be easily repaired or recoated if needed. However, sealing is an option depending on your project's requirements and desired level of durability.
Why Earthaus Limewash Is Typically Left Unsealed
Traditional Limewash is designed to remain breathable and vapor-permeable, integrating naturally with the surface beneath it. This openness allows moisture to pass through rather than becoming trapped behind a sealed film.
Benefits of leaving Limewash unsealed:
Maintains full breathability for healthy wall systems.
Allows for easy repairs and touch-ups — simply reapply Limewash over the surface.
Preserves the authentic matte texture and visual softness characteristic of Limewash.
Using a Sealer (Optional Considerations)
While not required, a sealer can add a layer of protection, making the finish more wipeable and stain-resistant. Earthaus Limewash is compatible with select third-party sealers formulated for mineral-based paints.
Important factors to consider:
Sheen: Applying a sealer may increase surface gloss and reduce the matte appearance.
Touch-up difficulty: Once sealed, the surface cannot be easily repaired or recoated without first applying a primer.
Color change: Sealers — especially on darker Limewash colors — can subtly shift hue or darken the tone.
Recommendation: If you choose to use a sealer, always test it in an inconspicuous area first to confirm that the appearance, sheen, and color remain acceptable for your project.
When a Sealer May Be Appropriate
High-traffic interior areas (e.g., entryways or stairwells).
Kitchens or powder rooms, where surfaces may require occasional wiping.
Accent walls where additional durability is desired without frequent maintenance.
Additional Notes
Once sealed, Limewash loses some of its natural vapor permeability.
Earthaus recommends leaving the finish unsealed whenever possible for longevity and re-coatability.
Always follow the manufacturer's instructions for any third-party Limewash-compatible sealer.
Still Have Questions?
Email support@earthausplaster.com or text 1-800-917-2414.