Rated 3.0 out of 5 by 5
Rated 5.0 out of 5.0 by marshy effective gutter seal
I have used this product on several occasions for the end caps, drops and joining two lengths of K gutter; always found it effective, easy to use
August 25, 2016
Rated 4.0 out of 5.0 by Baz Great product
I don't understand how the "Pro" is having an issue being that I am 23 and figured it out easily, first of all the product says it can stick underwater, hence why it stuck to your glove/putty knife. when applying, follow instructions except instead of spreading immediately, allow 30 mins to start to set, the outside will no longer be sticky and the inside still exceedingly pliable,I use my bare finger to press it into where I want it to seal then simply smooth it out, this is a product that is best used when it won't rain for at least 3 days, the seal is completely cured by then.I've used this on gutters, I used it in replace of an actual seal for my mower because the actual seal continually fell out, I've also used it as caulk for my tub ( painted over afterward of course) because it has a better hold than traditional caulk and is mildly flexible, it also seems much more resistant to mold than traditional caulk since it is designed for outdoor use
January 25, 2016
Rated 1.0 out of 5.0 by ArchiContractor Terrible product do not waste your money
I attempted to use the small tube of seamermate on both the inside and outside of the gutter where the roofer had run a screw threw the bottom edge of the gutter. Gutter was dry and clean. The first attempt was to squeeze the seamermate from the tube directly onto the gutter and to smooth the control the material with a clean putty knife. The seamermate stuck to the putty knife and smeared. It had no sticking capability on the inside or outside of the gutter. The next attempt to use seamermate was to use a rubber gloved finger to install seamermate. This was just a mess. The seamermate stuck to the glove and not the aluminum gutter. Money wasted $3.18. Time and energy wasted: Enormous compared to what was to be a simple task .
October 18, 2014
Rated 1.0 out of 5.0 by jimmy junk
used on new gutter install every seam leaked do not buy get the black roll of roof adhesive works well
June 4, 2012
Rated 4.0 out of 5.0 by Eddiemoney So far so good
The old owners of our hope had miter strips (narrow strips of aluminum used as corner pieces) to tie the gutters together at the corner on the home's additions. It makes for a smooth look and a quick install, but it is also a small piece of metal that doesn't cover very much of the adjoining gutters so leaks are more likely to be an issue. One corner was leaking. I picked up some Seamer Mate and Following the directions, I cleaned the seam out as best I could and used a handheld vacuum to get some of the dust out. Then I liberally applied this stuff in the seam and smoothed it out as best I could so the bead wouldn't be so big as to impede water flow. It seems to do the job so far. We had are in another heavy rain just a day after I did this and that corner is not leaking. The only thing is it is a little hard to work with. When you try to smooth it down all of it tends to want to come back up on your glove, finger, napkin, or whatever. Eventually I was able to get it in there by just squeezing the bead out into the seem, waiting a minute for it to start to self settle, then only lightly pressing it in there for even coverage before smoothing the edges out. This stuff isn't like normal caulk where you can stick your finger in there and smooth it out at will. In summary it seems to get the job done but involves a little trial and error to get it to do what you want it to. I'm not sure why the above poster had problems. I wonder if he was a little stingy with the stuff on each seam. Each packet says it is good for two seams but I actually used a full one and then some of a second one to fill the seam completely and smooth it an inch or so in each direction. If you don't use enough you may leave gaps that still allow for a leak.
July 12, 2013