Size:1 - Gallon Pro-Tect 15 is a water-based, spray on, clear, water-proofing sealer designed for all types of wood, composite lumber, concrete, patio and landscaping stone and brick. Pro-Tect does not sit on the surface it forms an impermeable barrier just below the surface where it is protected from the elements thus extending the life of the sealer to 15 years or greater. Pro-Tect also has a fungicide that will prevent mold stains from appearing.
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