Everything StainLock™ publishes about protecting marble, granite, quartzite, travertine, limestone, and other natural stone from acid etching and staining — in plain language, without marketing jargon.
Core Guides
These four guides answer the questions homeowners, designers, and fabricators ask most about protecting stone.
What an anti-etch (Antietch) sealer is, how it bonds within stone at the molecular level, which surfaces need it most, and how certified installation works. Includes a full comparison against traditional marble sealers.
Read the guideWhat "stainproof" actually means, which countertop stones stain and which also etch, and why a stainproof sealer that is not an anti-etch sealer only solves half the problem.
Read the guidePenetrating, topical, and anti-etch marble sealers compared side by side — plus how often marble really needs sealing and why a "properly sealed" countertop still etches.
Read the guideWhat etch marks look like, how to tell etching from staining, whether etch marks can be removed, and why re-sealing will never fix them.
Read the guideGlossary
The vocabulary of stone care is genuinely confusing, and much of the confusion is created by marketing. Here are straight definitions.
Reading is useful, but every countertop is different. A certified StainLock™ applicator will identify your stone, assess existing damage, and tell you honestly whether anti-etch protection is the right fit. The assessment is complimentary with no commitment.