Rated 3.7 out of 5 by 7
Rated 5.0 out of 5.0 by TheSolarDr Great Product
I found this stuff a few years back and it's been in my inventory ever since! I use this stuff to seal roof penetrations for the solar collectors I install. So far I've used this stuff on over 1000 systems and haven't had a single issue with leaks! Yeah, there's less expensive products out there that could probably do the job, but this stuff gives me peace of mind knowing that I won't ever have to deal with an angry customer that has a leak in their ceiling. This stuff applies easily, dries quickly & clear and it doesn't crack or shrink and pull away from the materials it's intended to bond to. I've applied it to metal (copper, aluminum, stainless steel), PVC, wood, Trex, asphalt shingles, pipe insulation and rubber gaskets... and it has provided a water tight seal around all of them! Also, not all silicone's are the same! I tried buying another brand that was 1/2 the price and had what appeared to be all the same ingredients. That product ended up having an acidic reaction with the asphalt singles! It caused damaged wherever it came into contact with a shingle and it also ended up shrinking and pulling the surface off of the shingles allowing water to get underneath the sealant. I don't have that problem with the Silicone II. However I set the product (as a bead or smeared out) it STAYS that way.
HINT: This stuff is sticky! If you are trying to get a nice smooth surface when smearing it out, spit on your finger before smoothing! Yeah, it's kinda gross, but then it doesn't stick to your finger and you'll get a glossy smooth surface! ;-)
December 18, 2012
Rated 5.0 out of 5.0 by HiddenHandyman Best finish caulk you can buy
GE II 100% Silicone caulk does what it says...it sticks to almost every surface (PVC and plastics I'd rate a 7 out of 10). This is NOT a paintable caulk...it's 100% Silicone, so of course you can't paint it! Just follow the directions: TAPE (masking) BOTH SIDES of the joint before filling, apply a 3/16" bead, smooth over the joint with a "gloved" finger (latex or rubber) or tool, then IMMEDIATELY (within 5 minutes) pull off both sides of the masking tape. Guaranteed to get a smooth joint and no mess. The joint will last for years.
One word of caution: the joint must be ABSOLUTELY DRY!! Use Denatured Alcohol (no residue) and a cotton cloth to wipe the joint before you apply the masking tape.
I wish reviewers would know what they're talking about before making statements...the GE II 100% Silicone Caulk is the best in the market.
May 13, 2010
Rated 4.0 out of 5.0 by whiten Peace of Mind
Reading the label "Rainproof in 3 hours: and that it can stand extreme temps and moisture I was given peace of mind. I ended up using his on the threshold between my front porch concrete steps and the doorway. It seems to be working but won't know for sure. Unlike the previous reviewer I couldn't do a uniform caulk with tape because the cracks and gaps were irregular not to mention in hard to see areas.
I will use this again for weatherproofing my windows, backporch steps and any other gaps or cracks I can find.
September 6, 2010
Rated 5.0 out of 5.0 by NYCBK Works great
IF only I had an applicator for this product. I assumed (wrongly) that I could squeeze this out of the tube, but I think you need a caulk gun for it to work. Oops. Oversight on my part.
However, the material itself does work. I used it to adhere wood trim molding to a mirror surface and it's great to use, and easy to clean up. TIP: don't bother washing it off your hands if you get some on by accident. just wait for it to dry and then peel it off. FUN! (if you try not to harp on having chemicals on your skin)
I just used a disposable chopstick and applied this like glue. Even though I made a mess, I just used a razor blade and sliced and scraped away any mess that oozed out where it shouldn't be. Comes off easily when you want it to.
September 26, 2013
Rated 5.0 out of 5.0 by homerepairnut works and lasts great
Used many, many tubes all around our old house everywhere from the roof down to the foundation during a complete remodel, including to repair some leaky gutters. It is remaining flexible/like hard rubber and so far has worked perfectly and is holding up in all locations. Note that you can NOT paint it (paint won't stick).
November 18, 2011
Rated 1.0 out of 5.0 by JeffM Does not dry EVER
This product will NEVER dry if used past it's date code. The problem is that the manufacture does not print the date code on the product so you can easily read it.
July 22, 2014
Rated 1.0 out of 5.0 by BWDBuilder Not paintable
It may say it's for doors and windows, but read the fine print on the label (not mentioned on this site). Unlike most other caulk sealants, this one is not paintable and tends to get everywhere.
November 10, 2009