Permatex80050 Clear RTV Silicone Adhesive Sealant, 3 oz

Not much to say. It's a clear silicone sealant/gel in a tube. You squeeze it where you want it; you smooth out/wipe off the excess; it smells like vinegar for a while and cures at room temperature (RTV = Room Temperature Vulcanizing) to a clear, rubbery, waterproof finish. Like any other silicone sealant (not to be confused with "siliconized" acrylic), it won't take paint, so pick a color that's close to what you're working on. Clear works in most situations.I don't bother with the cap after I open the tube. I leave the nozzle in place and thread a tight-fitting screw into the nozzle hole. It doesn't dry out; I don't have to clean out the nozzle each time and there's no waste.

Great value and high quality

Works great to hold down some fine plastic screening over cast iron driveway drainage grates to keep leaves out. The adhesive has been holding strong for about a year, through rain, summer heat, and snow.

Worked great for what I needed it for

Good sealant, works well on plastic, and the applicator tip is nice a addition. Easy to clean and remove.

Great quality, very strong and better than most other brands I have used

The Permatex 80050 Clear RTV Silicone Sealant is my go-to for sealing and bonding around the house. It’s waterproof, flexible, and adheres to metal, glass, plastic, vinyl, and more—no sagging or cracking even in extreme temps from –75 °F to 400 °F.It applies easily and cures to a clear finish that's perfect for weather strips, windshields, electrical connections, and other DIY fixes.Sensor-safe and vibration-resistant, this general-purpose RTV is ideal for indoor/outdoor use. A reliable staple in any toolkit!

Why do I buy Permatex Clear RTV Adhesive/sealant? The only reason is that it comes in smaller handier tubes. Here is my reasoning..."RTV" stands for "Room Temperature Vulcanizing". People don't realize it, but all silicone adhesive/sealants that you purchase at hardware and auto parts stores are "RTV's", no matter if they say it on the label or not. (There are also specialized curing silicone's, such as the ones used in hobby and manufacturing mold making, but a two part mixable silicone is typically used rather than RTV.)Silicone Sealant is the best sealant available for most applications. It is far more resistant to drying out and cracking than latex based sealants, is more waterproof, and is more permanent. I personally like it because it doesn't seem to attract dust and dirt as much as latex sealants. When you absolutely need a waterproof seal (boats, engine cooling systems, etc.) you use silicone.Disadvantages to silicone is it has a very strong vinegar smell while curing, it is not water soluble so it's harder to clean up, and paint doesn't stick to it as well as latex. If you are sealing around something that doesn't see a lot of heat extremes and moisture, and/or needs to be painted, you may prefer latex. Because it isn't very paint-able, silicone is available in several colors.Silicone can have different formulations that change it's characteristics slightly. All silicone's are highly waterproof, but some formulations are even better for 100% water immersion (like on a boat hull). Some have a wider temperature range. Some dry slightly faster, etc. Permatex makes other more specialized formulations which are top notch (mostly for automotive applications), but this particular package is just great plain old clear silicone sealant.Which is better for emergencies, latex or silicone? Let's say your working in a restaurant, and you have a customer restroom sink bowl start leaking that stays wet almost 24/7. You can't close the bathroom for an extended period of time because of constant use. Do you use latex or silicone? I have been in this situation and at first chose latex because of its faster drying time. The problem was, because latex is water soluble and it was exposed to dampness constantly, it never dried, and eventually just washed off. When I switched to silicone, it was waterproof even when not fully cured. Although exposed to the damp environment it did eventually cure, all the while stopping the leak.So would I choose Permatex Clear RTV adhesive/sealant over other brands of plain clear silicone? Probably not, but it does come in that nice conveniently small tube and it is available just about everywhere.Recommended