Some tiles require sealing to stop water absorption. How do I know which ones need it?

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Some tiles require sealing to stop water absorption. How do I know which ones need it?

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Generally, glazed tiles require no sealer. Some unglazed tile requires no sealer either. If in doubt, test the tile with a small amount of water. If the surface darkens, it is probably absorbing water and needs to be sealed. See our sealer products for more information.

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