How to know when resealing is required for Travertine

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Travie

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How to know when resealing is required for Travertine
« on: November 25, 2014, 12:53:15 PM »
When we pour water on a nearly sealed travertine floor it beads.
When the beading stops, does this mean that the tiles need to be resealed?

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Tex Rowe

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Re: How to know when resealing is required for Travertine
« Reply #1 on: November 27, 2014, 06:37:13 PM »
Hi Travie,
all quality penetrating sealers are designed to allow moisture to transfer through substrate. This is also referred to as a breathable sealer. This concept prevents the whitening effect some experience on film forming coatings like an acrylic when a moisture source is present. While allowing moisture to transfer, stains on the other hand are trapped close to the surface enabling maintenance to be substantially easier.
To answer your question, you essentially are looking for water to bead within the first 1-2 minutes. If it does bead, your sealer is still effective and does not require an additional application. If there is no beading at all and substrate darkens, then a re-seal may be necessary.