Under Caravan Treatment

Mar 14, 2005
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The floors of caravans are manufactured from exterior grades of plywood which use glues that won't absorb moisture therefore they don't require any further protection.
 
Sep 24, 2008
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It is only the ply laminates which are "glued"and the black coat is preservative which over time does wear away leaving the surface open to the elements. I have sprayed mine in places where this has happened. After all its only ply and not something special apart from being a waterproof ply( i hope).
 
Sep 25, 2008
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it is usually pressure treated marine rated ply. nothing should ever be used to underseal. it will stop the timber from breathing and will cause the timber to sweat and rot.
 

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