Soap Residue - Onyx
Soap Residue - Onyx
Professional advice and the right Lithofin products for your onyx
MediumSoap residue is a stubborn, milky or cloudy film that builds up on tile and natural stone surfaces, particularly in bathrooms and kitchens. It forms when soap (especially bar soap containing tallow or fatty acids) reacts with minerals in hard water, creating an insoluble calcium or magnesium stearate deposit.
Recommended products
Lithofin MN Power-Clean diluted
View productLithofin MN Wash & Clean as a maintenance cleaner
View productLithofin MN Stain-Stop to reduce future absorption
View productStep-by-step instructions
Apply Lithofin MN Power-Clean diluted 1:5 for light deposits or undiluted for heavy buildup. Leave for 5-10 minutes, agitate with a soft brush, and rinse thoroughly. For regular prevention, use Lithofin MN Wash & Clean as a maintenance cleaner. Seal surfaces with Lithofin MN Stain-Stop to reduce future absorption.
Expert tips
- Do not use acidic cleaners on marble, limestone, or travertine
- Soap residue can penetrate porous stone if left untreated
- Always test cleaner in an inconspicuous area first
Need help?
Use our Lithofinder for personalised advice, or contact us.