Auto Glass Sealant Windshield Urethane Glue Sikaflex P2G Primerless Adhesive x 2

I used 10+ tubes of this sika flex this summer. I defogged 15 windows on my Fleetwood rv. It was a big job. Remove, split, scrape, polish, reseal, assemble, install. The product was excellent. Applied smoothly. Good adhesion. Cured quickly. But...... there are some things you should know that will help you avoid the problems and complaints that some people have reported.1. Punch out the seal and make a big hole. Complaints say, the material is old or won't come out. Well, I bought tubes over a 3 month period with no bad. Urethane is a beast, but won't cure until it's out of the tube. And only the product exposed to air will cure. The inside material won't cure when the outside material is. If the tube is compromised, that should be obvious. So, the likely reasons for the complaint are: tube wasn't heated or a small hole was punched in the metal seal. Don't baby this thing. Bust open as much of the seal as possible. This stuff is thick. And cut a minimum 3/16" hole in the plastic nozzle. Let it flow... let it flow... don't hold it back anymore..2. Heat this product well. This stuff is thickkkk. You absolutely must heat it. Let the heat soak all the way thru. The tube needs to be more than warm. I set 2 pieces of wood on top of an electric fre-standing heater. It's one of those 1500 watt oil filled jobs from hd that looks like an old school steam radiator. I gap the wood 8" apart and put 2 tubes across the gap so that the heat radiates onto them. Then, a folded towel on top to hold the heat in. I let it soak for at least an hour on the low power setting. The tube gets to between warm and hot to the touch. I remove a tube when im ready and use it right away. I put a 16d nail into the nozzle when im done to keep it fresh and put it right back onto the heater. If you don't adequately heat soak the tube, the rest of your experience will be memorable.3. Annie get ur gun. A good one. Not a cheap pos. Don't even think about using that thing hanging in your garage. And if you don't do #1, #2, don't even bother continuing. Not even with a bazooka. I had over 180' of seals to apply. I used the ryobi battery op caulk gun. Worked great. Sure i blew the rivets off the end retainer. After an upgrade with hardened bolts, i was back in business. I also bought a Red Devil pro hd manual calk gun as an emergency backup, here on Amazon. Worked great. Slow.4. Be smart, stay clean, clean oopses now. This stuff is awesome for sticking to everything, long term. If you let little smears and globs go, unchecked, you will find it schmeared everywhere. Everywhere. Just like nutella. Hands, face, hair, ears, nose, glasses, elbows, doorknobs, light switches, carpet, countertops, dogs head.... so, keep the overshoot and globs to a minimum. Clean immediately with mineral spirits. Wear disposable gloves and throw them out. Clean your seal punch. Keep a roll of paper towels handy. Use them liberally, regardless of how you vote. Don't let Fido in the area while you're working.May all your seals and bonds last forever.Cheers.

This stuff is WAY less expensive than the stuff you get at the auto glass or parts stores but it works at least as well. No leaks, spreads easily. Slow drying but a FANTASTIC seal all the way around.

Use latext or rubber gloves. Buy glass handling suction handle. Thick deep bead worked great for me. Push push push the glass into place. Great product unless do not use gloves. If it gets on you it will be everywhere and it is black and stays black for days. Brake fluid was good for removal from hands or carb cleaner.

worked as it says but man was it very hard to use it. even after I let it sit in the hot sun all day and put it in a bag then in hot water it was still very hard to squeeze it out the cocking gun I used and messy very very unforgiving messy. overall it was effective for my window install ( after 2 days of cleanup) held good cured fast and was plenty but had to use both tunes because it got harder to squeeze as it emptied. very thick stuff.

I used this Urethane Glue to install my new rear window in my old 96 GMC 1500 Pickup truck. Go heavy with it. Use a bead almost as fat as a sharpy. It cleans up pretty easy with gas and a rag, if cleaning is needed afterwards. This product is securely holding the window in and now it has no leaks. I think it turned out pretty good for my first-time installing a window in a vehicle. I'd say very well worth the price.

Good stuff

You need a caulking gun able to withstand a nuclear blast, or it will collapse under the pressure. I'm pretty sure you could fart through a straw easier.

Chose this because it was a few dollars cheaper than 3M adhesive. Also this one was primerless. I did prep the surfaces with rubbing alcohol I had laying around though. Bought the 2 pack just in case but only ended up using 1 tube for back windshield on my Silverado. Other reviews recommended warming the tubes up with warm water, which I did and it applied very easily with a 26:1 thrust ratio caulking gun. I believe the gun I got was JES brand and it was about $25. I put tape on the glass to hold it in place and removed it after 6 hours. Then after the 7th hour, went on a test drive and the glass was nice and solid.