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Momentive RTV 109 is a premium one-part silicone sealant offering primerless adhesion to multiple surfaces, FDA-approved for food contact, and engineered to resist extreme temperatures up to 500ยฐF. Its durable, waterproof formula excels in industrial and home applications, delivering professional-grade sealing and bonding with unmatched reliability.

| ASIN | B004V3SJQE |
| Best Sellers Rank | #76,375 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #153 in Silicone Adhesives #448 in Caulk |
| Brand Name | Momentive |
| Color | Aluminum |
| Compatible Material | Glass, Metal, Plastic, Rubber |
| Customer Reviews | 4.6 4.6 out of 5 stars (191) |
| Item Dimensions | 11.2 x 1.9 x 1.9 inches |
| Item Form | Paste |
| Item Weight | 327 Grams |
| Manufacturer | Momentive |
| Material Type | Silicone Rubber |
| Model | RTV109-10.1 |
| Number of Items | 1 |
| Part Number | RTV109-10.1 |
| Style Name | RTV109 |
| Surface Recommendation | Walls, Tub |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |
R**L
Seems To Work Well On Silicone Rubber And Leather
I have some leather welding gloves that don't allow me to hold hot items for very long. I wanted to be able to glue pads of silicone rubber on the finger tips for better heat protection and improved grip. I have struggled finding an adhesive that bonds silicone rubber very well. Once dried the rubber just peels right off until I tried this product. The pads I glued to the gloves with this product adhered perfectly. I have to really pry and pull to get any separation. Even then the rubber tears right as it gets to the point of trying to separate. My next move was to buy the $30 Sil-Poxy. There is some debate whether that will adhere well to leather. I guess I will never know because for 1/3 the price this seems to do the trick where the other 5 or 6 attempts with various other adhesives failed. I will update if any issues with adhesion develop during use.
S**W
Perfect for aquarium rebuilding
This is the same product that many of the aquarium builders use. This is an adhesive, which has a much higher tinsel strength and adhesion strength than the average sealant you get at the pet store. The working time is around 12 minutes. You need to plan out your assembly and go through a dry run or two before actually attempting to put it together for real. The tube was well within date, it was only a couple months old when i got it. If you are doing a tank bigger than 5 gallons, consider the calking tube. This is not the easiest to use to lay down a long even thin bead and keep it smooth and straight. It takes a decent amount of pressure with a thinner bead, you may run into hand fatigue by the time you are finishing up.
W**M
The best of the best
I used this with glass shower door clamps. I tried others which resulted in a slow slip. This is the only thing that worked for me.
G**G
great adhesive silicone
needed "adhesive" silicone for a shower door application. Worked well.
G**.
Expensive and Hard to Find, Works Great
Essential for secure mounting of sliding glass roller brackets on our tub enclosure. Common sealers do not harden and heavy glass doors will slip downward.
A**R
Worked perfectly
Performed the function as seen on the back of the instructions. Excellent buy
K**Z
Best adhesive my frameless shower doors
I was fortunate to find this adhesive as 100% silicone did not provide me with the adhesion needed to mount the roller mounts to my glass frameless shower doors. this stuff is strong. Although make sure you follow the instruction as if not you could end up getting the same result as 100% silicone.
C**N
Great!
I had some sliding shower door handlers that kept coming off. Used this, let it cure for 48 hrs and they are on solid now!
G**A
EASY TO APPLY AND CLEAN-OFF EXCESS MATERIAL WHILE SOFT. BONDED HARD PLASTIC FRACTURES EFFECTIVELY AND ALMOST INVISIBLE. BEST ADHESIVE I EVER WORKED WITH. MECHANICAL ENGINEER.
C**.
Worked very well. My electric element in my mash tun just would not stop leaking. This stopped it completely.
M**L
Trรจs bon produit colle tout ...
W**S
Worked well, dried pretty fast. Leak free
P**O
It got dry before opening the tube
Trustpilot
5 days ago
2 days ago