Re-waterproofing Sunbrella

Oct 20, 2011
127
Hunter 30 Green Bay
Is there anything to put on a sunbrella sail cover that will make it waterproof again? Looking for something that will last for at least 1 season each time..
 
Mar 20, 2012
3,983
Cal 34-III, MacGregor 25 Salem, Oregon
some models of sunbrella fabric was never meant to be waterproof, but only as a sunshade and to shed some of the water....
I would think you could scotch-guard it with fair results.... something similar was probably applied to the material at the time it was manufactured.
there may be a better product than the scotch-guard brand, but whatever you choose will likely cause it to shed almost all the water from it rather than leaking thru.... and should last the season.
 
Oct 3, 2008
325
Beneteau 393 Chesapeake Bay
303 Fabric Guard is endorsed and recommended by the manufacturers of Sunbrella as the best solution for restoring water repellency to Sunbrella fabric.
 

Tim R.

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May 27, 2004
3,626
Caliber 40 Long Range Cruiser Portland, Maine
303 Fabric Guard is endorsed and recommended by the manufacturers of Sunbrella as the best solution for restoring water repellency to Sunbrella fabric.
+1 on the 303 but make sure you clean the Sunbrella first. A little Woolite and a hand washing is recommended.
 
Nov 26, 2008
1,970
Endeavour 42 Cruisin
Ditto on 303. But make sure you get the right 303!
There are 2 kinds of 303. I put the wrong kind on our bimini. It then leaked like crazy.

Luckily the tech support is good and they told me how to clean it and prep it for the right 303. Did all that and we have been leak free for over a year.

303 fabric protector is excellent stuff
 
Oct 15, 2009
220
catalina 320 Perry Lake
I too use the 303 but wish they would package it so I could use a brush or roller to apply. It is hard to get it on evenly with the little spray bottle.
 
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Sailm8

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Feb 21, 2008
1,751
Hunter 29.5 Punta Gorda
My canvas guy said 303 and never never use Starbrite stuff on sunbrella.
 
Dec 19, 2006
5,832
Hunter 36 Punta Gorda
303

I have been using 303 for the last few years and very happy with it.
I had never done any thing to my canvas except rinse and wash it but a few years ago I noticed water dripping on the inside into my cockpit.
So for the last 2 years I have been spray 303 on it and it is great and don't
see any problems with it and a matter of fact I saw one spot on my Bimini dripping and so will give it a good application.
What I do is wash it with mild soap let dry real good and lay down on flat spot and spray it all over and let dry.
Nick