Treating Pressure Treated Decking timber

MisterB

Registered User
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I've a large pressure treated deck, near the sea. It's about 8 years old and I've resprayed it with wood preservative a couple of times after cleaning. I've got a couple of boards that have a small amount of rot, near vegetation and I'll have to replace those.

Has anyone come across a good product that waterproofs. I want to avoid painting it.

I've found one new product called nanoshell which claims to waterproof for up to 10 years!
 
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