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Sman · 04-08-2008, 01:14 PM

I have a canvas cover, original, 1980, that was sprayed with silicon each season by the previous owner, for a total of 23 seasons. Although I haven't sprayed it once in the last 4 years, his annual treatment seems to have helped as the boat is bone dry every time I uncover it. It was a 3M product. I don't know if it would do anything for polyester. I dont't think it damaged the interior, the upholstery is still orignal, no tears.

04-08-2008, 01:14 PM	#2
Sman Senior Member Join Date: Apr 2005 Posts: 103 Thanks: 3 Thanked 27 Times in 8 Posts	Waterproofing Boat Covers I have a canvas cover, original, 1980, that was sprayed with silicon each season by the previous owner, for a total of 23 seasons. Although I haven't sprayed it once in the last 4 years, his annual treatment seems to have helped as the boat is bone dry every time I uncover it. It was a 3M product. I don't know if it would do anything for polyester. I dont't think it damaged the interior, the upholstery is still orignal, no tears.