I can't honestly say. I've never used it on anything but a leaky shed roof. It didn't blow me kilt up there either. I wouldn't buy any more of it.

Since I see many people have had problems with this website, please see the following comment I made on another reviewer's post:

Note: I have not purchased from either company so I have no first hand experience soo make your own determination.

I searched Homedepot online and found many different sealer sprays that would probably work for a roof. I would recommend that you go to the store if you are interested and ask for advice there since there are so many choices. But then I found this product which seems perfect for your problem.

http://www.jnkproducts.com/instantroofrepair.htm

Some good reviews of the product are on Amazon although the product is not available on the site:

http://www.amazon.com/Rescue-911-Clear-Instant-Concrete/dp/B001R5KGDI

The price is right and the company JNK Products seems to be a real business with a physical mailing address and phone number on their website.

Again I have never used the product nor purchased from this company but it seems good. Why not give them a call?

So has anybody actually bit the bullet and used the stuff? Don't see any indication of what might be a good solvent too remove overspray, (which you know is going to happen) but also can find no reference to a Material Handling Data Sheet, a requirement for any hazardous material.

I river raft, we want to spray the hold bottom, will we be able to fold the raft back up it's13 manraft