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View Full Version : How do you waterproof your sunbrella summer cover?


suedv
07-05-2007, 09:09 PM
Our cover isn't doing it's job now. When it rains hard water soaks through. This seems like an "I can do it project" if I know what product to use and how to apply it. Thanks in advance.

Sodar
07-05-2007, 10:15 PM
Sue,

Purchase some 303 Fabric Guard and spray it on. Try to get the cover as clean as possible before you spray it on. Also, spray it on and let it sit outside and dry. The stuff works great though! Good Luck!

http://www.303products.com/tech/images/products/htfggroup275.jpg

suedv
07-05-2007, 10:31 PM
OK it isn't supposed to rain for a few days so I'll do it this weekend. Do I have to put it on both sides of the cover or just the top side? I'm guessing one of those little spray bottles isn't enough, how much should I buy?

Sodar
07-05-2007, 10:33 PM
OK it isn't supposed to rain for a few days so I'll do it this weekend. Do I have to put it on both sides of the cover or just the top side? I'm guessing one of those little spray bottles isn't enough, how much should I buy?


They have a small spray bottle, a big spray bottle and a gallon jug. I bought two big spray bottles and it was just enough to do my cover, my bimini and my bimini boot cover. Just apply it to the outside....

east tx skier
07-05-2007, 10:39 PM
Use a deck sprayer. Don't do it while the cover, etc. is on the boat.

suedv
07-05-2007, 10:46 PM
I'll spread it on the driveway. Is overspray going to leave stains or marks on the driveway?

bigmac
07-05-2007, 10:47 PM
Coverage is about 75-100 square feet for each 16 oz bottle. Two light coats are better than one heavy coat. The stuff is supposed to cure for about 72 hours. In the hot sun is best. I'd recommend using a small pump-up garden sprayer like you'd use for dandelions, like this (http://www.spray-n-growgardening.com/prodinfo.asp?number=GILPUMP&top=15) or this (http://www.spray-n-growgardening.com/prodinfo.asp?number=ONEGAL&top=15). Otherwise, you won't be able to hold onto a fork after squeeze-pumping two coats on a boat cover.

http://www.spray-n-growgardening.com/images/gilpump.jpg http://www.spray-n-growgardening.com/images/onegal.jpg

The fabric has to be really clean, and completely rinsed of detergent.

suedv
07-05-2007, 11:15 PM
OK you guys keep making me think of more questions. For the "it has to be really clean" comments do I take it to a laundry mat with the extra large washers or would that somehow damage it?

Am I correct in assuming that it has to be dry before application too? Would it ruin it to dry in a commercial dryer on low it if I can wash it?

These may be stupid questions but I don't want to ruin it trying to make it better.

bigmac
07-05-2007, 11:22 PM
OK you guys keep making me think of more questions. For the "it has to be really clean" comments do I take it to a laundry mat with the extra large washers or would that somehow damage it?

Am I correct in assuming that it has to be dry before application too? Would it ruin it to dry in a commercial dryer on low it if I can wash it?

These may be stupid questions but I don't want to ruin it trying to make it better.
I would dry it for a long time in the hot sun and on some kind of a rack ( you can make that out of cheap PVC and it will work great for the application phase too). I'd be worried about putting it in a dryer. Don't lay it on the ground or you'll get condensation on the underside.

Washing it in a washer would be OK on gentle with a gentle detergent, I suppose, but that would have to be one big honkin' washing machine. And I'd rinse it twice.

Look at 303's web site - they have a lot of technical info about the stuff.

Leroy
07-05-2007, 11:29 PM
I need to do the same thing Sue, keep asking questions and I'll know what to do also!

suedv
07-07-2007, 01:16 PM
It's a bright, hot, and sunny day so I did it today. Its all done and drying in the driveway. Thanks for the advice.