Marble Shield - Granite Shield of Irvine - Calcite Based Stone Sealer

Marble Shield By Granite Shield
Granite Shield - The best available penetrating sealers for calcite based stones. Keep in mind that etching is not staining. It’s actually liquids under a pH7 eating the surface of your stone but it’s fixable.
Understanding Etching on Calcite Based Stones & Sealing to Protect the Best You Can
Understanding Calcite Based Stones Such As Marble
Acidic liquids, alcohol and vinegar can etch marble, travertine and limestone if left unattended on your stone surface. Water with a lower pH level lower than 7 is considered acidic.
pH Values
Stomach acid 1 to 3
Lime Juice - 1.8 to 2
Lemon Juice - 2.3
Coca Cola - 2.5
Soft Drinks - 2.5 to 3.0
Vinegar - 2.4 to 3.4
Apple Juice - 3
Orange Juice - 3.5
White wine - 3.0 to 3.3
Red wine - 3.3 to 3.5
Drinking alcohol such as gin, rum and vodka - 3 to 6 adding Orange or Lime juice will lower pH
Tomato & Tomato Juice - 4.2
Beer - 4.5
Coffee - 5.5
Normal rain - 5.7
Milk - 6.2
Saliva - 6.3 - 6.6
Dog urine - healthy is 6.2 to 6.5
Drinking water - 6.5 to 8
Water - Under 7 is considered acidic
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Sealing Hard Surfaces - Interior & Exterior
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