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My deck has been previously sealed – Will GacoShield adhere to it?

April 26, 2017adhere deck sealed

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My deck has been previously sealed – Will GacoShield adhere to it?

1 Answer

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10 Posted

Do not apply GacoShield over water-repellant sealers. Wood sealers prevent paint or coatings from adhering to the wood. If you have sealed the wood, you must use an oxalic acid-based cleaner, such as Strip XL, manufactured by Bio Wash, to strip off the sealer. Test the surface after stripping the sealer by spraying with water and seeing if the water still beads. If the water does not bead, the sealer has been stripped. After testing, allow the surface to dry for 24 hours.