Slate indoors doesn’t require anything special—clean water, possibly with a mild, neutral soap, is sufficient. Using appropriate cleaning products for treating indoor slate does most of the work. Below you’ll find two important tips!
What You’ll Need:
Impregnated slate has a protective layer that prevents stains of all kinds from penetrating the stone.
Using fatty or wax-based soaps will leave a greasy residue on top. This is not ideal, as dirt will easily stick to this, and over time, the surface will appear yellow and dirty.
From time to time, it’s a good idea to go over the surface with a deep-cleaning product to break down and remove any embedded dirt and grease stains.
For this, you can use a deep cleaner such as Steinrens—a highly concentrated, acid-free cleaning product that’s also free of phosphates and lye. The surfactants are biodegradable.
Dilute Steinrens in a ratio of 1:1 to 1:500 depending on the level of dirt.
Apply and let sit for 10-20 minutes.
For heavy dirt, scrub with a brush if necessary.
Wash/rinse thoroughly with water afterward.
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