Etching, Staining, and Which One Granite Actually Gets

Lemon juice on marble leaves a dull mark within minutes and does nothing at all to most granite, and the distinction set out at granite countertops asheville nc firethegrid is the one that decides how a countertop should be looked after. Confusing the two problems is common, and it leads people in Asheville to treat a stain as damage or a burn as a spill.

Etching Is a Chemical Reaction

Acid dissolves calcium carbonate, so it attacks marble, limestone and travertine, leaving a dull patch where the polish has gone. Granite is mostly quartz and feldspar with very little carbonate, so it does not etch in normal kitchen use. A dull mark on a granite top is far more likely to be sealer residue or a cleaner that stripped the shine locally.

Staining Is Absorption

A stain is liquid that entered the pore structure and stayed. Oil is the usual culprit, since it does not evaporate and it darkens the stone from within. Wine, coffee and cooking sauces mark lighter, more absorbent slabs. The mark is inside the material rather than on it, which is why wiping does nothing and why a poultice is the standard remedy.

Telling Which You Have

Look at the reflection. A stain is a darker area that reflects light normally. An etch or a chemical burn is a duller area that may be no darker at all. Wet the patch: a stain looks the same or worse when wet, while a dulled surface often disappears under a film of water and returns when it dries.

The Right Response to Each

A stain comes out with a drawing poultice and patience, sometimes over several applications. A dulled area needs mechanical repolishing by somebody with the pads to do it, which is a fabricator visit rather than a product. Neither is helped by more sealer, and applying a sealer over a stain locks it in place. One practical consequence follows. A cleaner sold as safe for marble is safe on granite, while a general purpose spray may be safe on neither. Buy for the most delicate surface in the house and use that product everywhere, which is simpler than remembering which bottle belongs in which room.