Permatex 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz.

Already tired of the tiny drip from my home office window, i grabbed this and fixed it on a Saturday before emails piled up again. The tip lets me run a thin bead along the glass edge, then I just nudge it in with a card. No more draft on my keyboard, which made me really glad I tried it bc I can work in a hoodie, not a coat.

I use this flowable silicone for sealing the seams on my silnylon tents (SeekOutside Tipi, NEMO wagon top), it works great, cures within a few hours and keeps the rain out of my tent. I have also used this product to seal cook custom sewing silnylon tarps. The silicone doesn't crack and remains clear, I have had this applied on multiple tarps and tents for years with no issues or need to reapply. I assume it would be good for using with a windshield too, but my primary experience is with waterproofing outdoor gear.

From the package: "Specially formulated wicking action silicone. Flows into hidden and hard-to-reach leaks around glass..." I did not find that it really wicked at all. To me, it is just a more runny RTV silicone sealant. Because is thinner, it will flow somewhat into nooks better than you can squeeze normal silicone sealant yourself. This, overall, seems to contribute to a better seal, so it might be the best product for the application, but it is not anywhere as great as the description might lead you to believe. Also, because it is runny, it is better used on small gaps and where the application is horizontal. If at an angle or vertical, it will tend to run out and drip. You might be better off with two light applications based on this. Based on its performance to claims, I'd give it a bit under 4 stars. One problem that this product (and most Permatex products) has is that it comes with a cut-off nozzle to apply the sealant. After you are done, there is no way to seal up the tube. Unfortunately, this makes it more of a one-time-use product and not so good if you want/need to do multiple applications because you still have a leak and/or the product leaked/ran out. I sealed the tip up extremely well with electrical tape, and it barely lasted overnight. (I had to cut some more of the tube off). Some other products (GE, I think) have a replaceable, screw cap over a pointed nozzle which would be much better. This probably knocks it down to 3 stars since it is not that cheap and not widely available. Finally, it claims to be odor-free. While it is vastly better than the pungent smell of acetic acid, it is not odor-free, but not really bad at all. Very-low odor would be more accurate, although smell is lesser important to me, I round back up to 4 stars. See my customer image of some landscape lights I was trying to seal from irrigation spray (which keeps corroding/ruining them). You can see that it flows better into crevices, but that it also has a tendency to run out. Hope you find my review useful.

I recently bought an 04 Mustang and decided to change the headlights rather than restore them. A typical problem noted on replacement headlights is leakage due to poor sealing. After seeing a recommendation ro use this silicone to go over the seal on the new headlights the day before installing them I bought a tube at the same time I bought the headlights here on Amazon. The silicone works great for going over the seams of the lights. There are many areas that you need to get the sealant down into a crevice to cover the actual seam and this worked great. It oozed into place easily and was not so runny to make it difficult or messy to use. I used a liberal amount on the seams so the sealant would cover more than a little and it would sink into the visible gaps from the poor job the manufacturer did on sealing. I did the job on my counter, with no dripping (YMMV as it does ooze slowly and depending on your light, it could drip) or spilling and no strong odors. The silicone settled into place and I was able to let it set for about 30 minutes until it was tacky and no longer oozing before turning the assembly over and doing the opposite side. I let it sit overnight to cure and installed the lights the next day. While it hasn't been long, I did take it through the car wash and do not see any signs of leaks. Great stuff and cheap to ensure your automotive lamp assemblies don't leak.

Easy fix for my shop’s drafty front door glass. I run a small print store and cold air was sneaking in along the top edge of the window by the counter. Customers sit right there to sign invoices, so that breeze was annoying. I cleaned the gap, ran a small bead of this Permatex, and let it sit overnight. Next morning it was clear and flexible, and the whistle from the wind was gone. I like that the tip is skinny so i can follow the trim line without making a mess. Used the leftover on a small chip around my truck’s windshield and that sealed up fine too. Reallly glad it stays clear.

I'm sure this works great on windshields and as a sealant but I've never used it for that purpose. I bought this because I read you can make homemade friction pads for aluminum yo-yo's with it. That didn't work out so well for me because, while this stuff does adhere to smooth surfaces, it doesn't do so quite enough to deal with the constant rubbing of a yo-yo string. Which is the only reason I put 3 stars. The self leveling nature of this product has a neat little side-effect - it makes perfect little half/quarter domes when you put a drop down on glass. So for example, I've used it to make little invisible bumpers in the corners of my iPhone facecplate so that I can put it face down on a table without it getting scratched up. (I don't like using protective films because they corrupt the feel and tend to be smudgier than the raw iphone glass)

completely fixed my leaky winshield at the top portion of the seal on my 2004 avalanche. with 20 year old rubber and seals, they were at the point of failing sooner than later. after washing the car one day, i noticed a leak from the inside of the car near the sunvisors. tried to take everything apart and clean the area with new gaskets and everything with no luck. then after reaching out to a windshield company to come check and repair it, they wanted $150 to "take the plastic trim off and reapply the sealant" with that information i looked into the glue and just decided to repair it myself trying this permatex windshield sealant. glad that i did, and for $7 i was able to apply a get a solid bead of this silicone across the entire top of the windshield and it stopped my leak. i even did an additional bead at about the 72 hour mark to fully get any spots i missed. its not the prettiest, but im sure if you taped everything off and wiped off the excess off it could come out pretty nice/factory looking. ive attatched a pic of the final out come, as you can see the paint is sun damaged so i wasnt exactly being a perfectionist to get it pretty looking. but it absolutely fixed my leak issue!

Velcro-ing kids into car seats is my daily cardio, so I noticed right away when a tiny leak started at the top of our van windshield. I bought this so water would stop dripping down right onto the diaper bag. The nozzle is skinny so I could run a neat line along the crack without taping anything off. It flows into the gap, then sets up nicely. I did the whole thing during nap time and it was dry enough by school pickup. Last week it poured and that corner stayed totally dry, which made me reallly glad I didn’t have to drag both kids to a glass shop.

I received an opened item that was patched up with tape

Jag tappade över till en spruta. Silikonen var lättjobbat och flöt ut bra. Jag kommer att beställa det på nytt.

Good

Very good super product I use this car front glass for water leaks Now there is no leakage …. Even single drop no leakage

An meine Frontscheibe ließ Wasser durch. Die Werkstatt, meinte der Kleber ist durch und man muss die ganze Scheibe rausnehmen, säubern und neu verkleben. Kostenfaktor in der Werkstatt 1000€ Dank gründlichen Recherche, bin ich auf Permatex gestoßen. Gekauft und angewendet, kaputt machen konnte ich nichts, war ja schon kaputt. Um so mehr bin ich von Permatex begeistert. Die Anwendung verlief erst mal einfach, das Zeug floss wirklich in die kleinste Ritze. Mein Fehler war, ich hatte keine Handschuhe angezogen, so klebte das Zeug nicht nur da wo es sollte, sonder auch an meinen Fingern. Habe es erst mit Aceton von den Finger wegbekommen. Das gut, mein Auto ist seitdem trocken und das erspartes Geld konnte ich wieder woanders wie z.b. by Amazon ausgeben Kann es nur empfehlen