dustboy wrote:I think ^^^^this Henry's product is probably good, but DO NOT USE their elastomeric roof coating which is water based. What a nightmare, I applied it one warm afternoon, and by nightfall it was dry to the touch.
When I came out in the morning, it was dripping all over the sides of my camper. Just the overnight dew was enough to re-liquify it, and I spent an hour hosing it off and scrubbing the sides of the camper and driveway. What a mess. It apparently needs 2-3 days of ZERO moisture to dry.
Last summer, I was looking for something to help cool the roof of my trailer down, and spoke with the tech support people at Henry's. I told them that I needed something that would help with the heat and was told that their
Henry 687 was the only material approved for over-the-road use and to stand up to the stretching of expanding and contracting metal.
Here is a link to my experience with it.
http://www.tnttt.com/viewtopic.php?f=2&t=52280#p960440. According to the directions, I should have needed a little over 3 gallon cans to cover my 6x10, but it actually took little less than 2. While not cheap, I was able to buy it from my local Ace Hardware, they have it at the warehouse, and he ordered a case, figuring if it works, it will sell. I really wish that I had been able to set up a scaffold on both sides, the roller and extension at about eye level really gave my shoulders a work-out.
As far as drying goes, this stuff was setting up as I rolled it, and was dry to touch in less than 30 minutes and it was a humid day. (yes, I am one of those people who gotta check wet paint signs).
So far, I have not had any problems with it, going through torrential rains and several ice storms. I am thinking of other uses for the remaining gallon can.