Best Silicone Adhesives of 2026

"I've tried a lot of sealants, but this one stands out because it never dries out in the tube, even after months in the cabinet. I use it for everything around the house, from gluing to sealing. Just remember, if you're using it as an adhesive, give it a couple of days to fully dry."

"Whenever I need a sealant, Permatex Clear RTV is my go-to. It's waterproof, flexible, and works on metal, glass, plastic, and vinyl. It doesn't crack or sag, even in extreme temperatures, and the clear finish looks great on all my DIY projects. Absolutely essential for my toolkit!"

"I bought this to reattach my Jeep’s rearview mirror, and after three months, it’s still holding strong. I’ve tried other adhesives before, but none lasted this long. I plan to use it for any future repairs, too."

"I used this caulk in my kitchen and was impressed by how smoothly it goes on and how easily it dries to a clean, flexible finish. The seal stands up to water and heat, and so far it’s holding strong without any cracks or peeling. If you need a reliable option for kitchen repairs, this one is definitely worth considering."

"When I recaulked around the base of my toilet, I found this silicone gel very easy to use and quick to dry. It creates a neat, waterproof seal and gave the area a professional look with no gaps or leaks. It’s simple and effective for bathroom jobs, which gives me real peace of mind."

"I’ve used Advanced Silicone Caulk for a few home projects, and it’s proved to be great where flexibility and water resistance are critical. It adheres well to surfaces like glass and metal, offers lasting waterproof protection, and stays flexible over time. It’s not ideal for paintable surfaces, but if you need a sealant that resists moisture and mildew, this is a solid choice!"

"I've struggled with repairing my expensive silicone liners as an amputee, but this adhesive finally did the trick. It forms a solid, flexible bond to existing silicone, something I haven't managed with other glues."

"I used this product to repair a silicone neck seal on my drysuit, and just a few drops saved me from buying a new one. It cures quickly and bonds rubber to silicone effectively, making it a cost-saving solution for small fixes."

"After following the instructions, I used this to fix damaged slots on my Garmin silicone band. The adhesive held up perfectly for weeks, and using minimal glue kept the tube from drying out. It's surpassed my expectations for silicone repairs."

"I've tried several adhesives for my outdoor craft projects, but this one truly stands out for its strong hold and durability. It's my second time buying it—absolutely reliable for my needs."

"As someone who repairs a lot around the house, I was looking for something that's easy to use, dries quickly, and doesn't leave a mess. This adhesive delivered! The reduced odor is a huge plus, and I'm very satisfied with how it works, even on silicone."

"I make mosaic birdhouses that have to withstand the weather, and this glue has performed perfectly outdoors. My only small issue is that the adhesive sometimes hardens inside the tube between uses, but overall, it's been a great product."

"I used this silicone to seal a shower door and repair a plastic light cover. It adhered perfectly to both glass and plastic, cured evenly, and stayed waterproof without peeling. The lack of a strong odor and how easily it smoothed out were big pluses. My only minor issue was the tube splitting near the bottom, which led to some wasted sealant, but overall, the product performed excellently."

"I recently tackled a few household repairs and found this J-B Weld silicone sealant to be a fantastic all-purpose solution for leaks, gaps, and even automotive needs. It’s easy to apply and bonds well to various surfaces like glass, metal, and plastic. I appreciate that it dries clear, is durable, and doesn’t crack or shrink. It’s also mold-resistant and safe for use near sensors. Highly recommend it for DIYers and anyone needing a reliable sealant."

"As someone who needed to bond driftwood to stone for an aquarium, I was pleased that this glue held everything firm and didn’t cause any issues in my tank. It’s a good product for aquarium use."

"I used this adhesive to reattach a seat cushion on my Honda Pioneer SxS. After cleaning both surfaces thoroughly and applying the product, I taped the cushion for a solid fit. It dries fast—I could feel it setting before I finished taping. When I removed the tape the next day, the cushion was firmly bonded. So far, it's holding up well with regular use."

"This silicone sealant is my go-to when I need to bond and seal materials. I applied it to my garage floor in cold weather (about 40 degrees) and it still cured properly, bonding my door seal to the concrete. Very reliable performance even in less-than-ideal conditions."

"I used this to fix a leaky snow globe for my wife. After layering the product and letting each coat set, the leak was sealed and the globe was as good as new. Just a heads-up—if you buy the larger tube, you'll need a caulking gun to apply it."

"I had a large water container with a crack and needed a food-safe sealant. This product was easy to use and the instructions were straightforward. After applying it, the container is as good as new with no leaks. The cost is reasonable considering it saved me buying a replacement. There was a slight smell, but it faded fast."

"I used this glue to repair the carafe on my Cuisinart coffee maker. It sealed perfectly with no leaks and I appreciate that it's safe for food contact."

"I tried this on a glass kettle that’s exposed to high heat and was pleasantly surprised. It held together nicely and prevented any water from leaking out. I definitely recommend it for similar repairs where food safety and durability are important."

"I've relied on this caulk for many construction and home renovation projects—it's never let me down. Application is straightforward, and it seals perfectly every time. I just cut the tip, pierce the seal, and it's ready to use. Definitely my go-to sealant for both professional and home needs."

"As a DIYer, I tried the Gorilla Waterproof Caulk & Seal around my bathroom tub and kitchen windows, and it really impressed me. Dries bright white, resists mold, and is water-ready in just 30 minutes—a huge advantage for busy projects. The adhesion is excellent, and it doesn't shrink or crack. The only downside is the strong smell while applying, but it fades after curing. For the price, it's a top-notch choice for wet areas."

"I picked up this caulk for a shower repair, after the old sealant failed. It was super easy to use and has held up impressively so far. The seal stays flexible and watertight, giving me peace of mind for moisture-prone spots. I’m genuinely satisfied with the durability and performance."

"I've used this clear electronic grade silicone for both DIY and commercial projects and it's become a go-to adhesive for me. The seal is reliable, it bonds well to different surfaces, and I appreciate that it's intuitive to use with clear instructions. It's a dependable product I trust for my business applications."

"This stuff is excellent for electronics projects—I used it to secure loose wires and connectors outdoors and it’s kept moisture out. It spreads easily and the screw-on lid is a nice feature to help prevent it from hardening too quickly."

"I used this for an under-cabinet LED project where an electronics-safe sealant was required. The product worked well for my needs and is basically odorless, but I did notice the tube set up pretty quickly once opened, so it’s best for jobs where you’ll use most of the tube at once."

"I used this sealant for a shower door and a cracked plastic light cover. It bonded perfectly to both glass and plastic, cured evenly, and remained secure even with water exposure. There wasn't any strong odor, and smoothing it out was simple. My only small gripe was that the tube split near the bottom halfway through, so some product got wasted. Overall, the sealant itself performs excellently."

"For a variety of minor household repairs, this silicone sealant has been a fantastic solution. It applies easily and works on all sorts of surfaces—glass, metal, plastic—and dries clear with a strong, weather-resistant seal. I especially like that it doesn’t shrink or crack, and it’s also safe around sensors and in aquariums. I’d recommend it for anyone needing a versatile and durable sealant for both home and car projects."

"I actually used this to solve a problem with my car’s plastic trim getting scratched by a pipe in my garage. I built up a bumper with the silicone sealant, and after three coats, it’s working perfectly—very durable and so easy to use. Definitely well worth the cost!"