If you're wondering whether you need to seal your Earthaus Stone Plaster with Olive Oil Soap Sealer, the answer depends on the look and performance you want. The standard Earthaus Stone Plaster finish is sealed with Olive Oil Soap Sealer to enrich color, add slight sheen, and improve surface durability — but sealing is optional depending on the desired aesthetic and performance level.
What the Olive Oil Soap Sealer Does
Olive Oil Soap Sealer reacts with the lime in Stone Plaster to form a natural, breathable protective layer. This process — known as lime saponification — creates a subtle sheen while adding mild water resistance and surface hardness.
Why it matters:
Provides a soft, natural luster without altering the color.
Reduces surface dusting and improves cleanability in high-contact areas.
The Optional Matte (Unsealed) Finish
For a more porous, matte appearance, Stone Plaster may be left unsealed. This approach maintains maximum breathability and a natural mineral texture.
Why it matters:
Produces a matte finish ideal for subtle, natural interiors.
Best for low-traffic, low-moisture spaces where added sheen or water repellency is not required.
Additional Notes on Sealing Stone Plaster
Sealing is recommended for higher-use or moisture-prone areas to prevent surface marking.
Once sealed, the finish cannot revert to its fully matte state without refinishing.
Allow the plaster to fully dry before applying Olive Oil Soap Sealer.
Still Have Questions? Email support@earthausplaster.com or text 1-800-917-2414.