ADVICE ON HOW TO REMOVE ”WHITE STAINS” FROM STONE
Here is our pick for July:
I have granite stone on my house. Some of the stones have gone white. It looks like the whiteness is “weeping” from the stone joints maybe caused by lime in the cement mix. Have you seen this before?
Is it possible to clean this off the surface of the stone and also remove the whiteness from the stone joints? Also do you recommend sealing the stone, is this a service you do?
A Stontex cleaner called “Cement Away” will remove efflorescence / lime stains from most materials except limestone, marble or travertine which are acid sensitive. A Hannafin cleaning product called “Eff – Eraza” can also be used on the stone wall or paving. This is a safe acid designed to remove these stains from acid sensitive materials.
The Stone Doctor recommends that all natural stone, concrete and brick should be sealed once the material is clean and dry.
You have two choices:
- Our “Stontex Platinum Stone Sealer” which lasts up to 5 years before you need to re-seal or
- For a permanent solution we recommend our premium sealer “Dry Treat Stain Proof”.
To work out how much sealer you will need please see our Coverage Rates.