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Floors, Tops, Walls, Kitchens,
Baths & Halls
We Seal It!!! All For Life!!!
Understanding
Calcite Based Stones
Such as Marble
Copyright 2011. All rights reserved. Granite Shield is a registered trademark.
White Honed Marble Sealed with Granite Shield
Etching on marble and then sealing with Granite Shield sealers.
Granite Shield Care Products for Honed Countertops
Granite Shield Care Products for Polished Marble Countertops
Granite Shield Care Products for Honed Marble Countertops
Granite Shield Marble Countertop Sealer DIY Kit
Granite Shield Etch Removal Kit for Polished Marble Countertops
The Granite Shield process on calcite based stones will not prevent surface etching but will reduce it about 80%.
Granite Shield does have a repair kit that should etching happen if sealed with Granite Shield sealers
remove etching in minutes on polished or honed surfaces. 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

There is currently no penetrating sealer that can stop etching on calcite based stones.
On
Absolute Black granite etching causes gray rings and spots on the surface. A topical sealer is not recommended
for natural stone because it blocks the pores of the natural stone then can't breathe and the top coating can scratch easy.
So what happens to natural stone that can't breathe? Moisture gets trapped and can cause a chemical and mineralogical
change within the stone. This action of decay in natural stone may take form of pitting, spalling, flaking and oxidation.
You want your natural stone to breathe or it will disintegrate.
The above marble countertop is not sealed with Granite Shield sealers

Photo shows etching on marble caused
by water near kitchen faucet
(not sealed with Granite Shield)
The above marble countertop shows etching on marble and it is not staining on marble.
Countertop is not sealed with Granite Shield sealers.