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🔧 Seal it like a pro — flawless, flexible, and forever waterproof!
Osi Sealants 3 Oz Superflex Clear RTV Silicone Adhesive Sealant delivers a professional-grade, waterproof seal with superior flexibility and adhesion. Compatible with a wide range of materials including glass, wood, metal, and ceramics, this compact 3 oz tube is perfect for detailed repairs and sealing tasks. Trusted by thousands with a 4.3-star rating, it resists cracking, peeling, and shrinking, and is safe for aquarium use, making it the go-to sealant for both home and professional projects.

| ASIN | B0002BBX3U |
| Best Sellers Rank | 9,836 in DIY & Tools ( See Top 100 in DIY & Tools ) 178 in Sealers |
| Brand | Loctite |
| Colour | Clear |
| Compatible Material | Ceramic, Fibreglass, Glass, Marble, Porcelain, Wood |
| Country Of Origin | USA |
| Customer Reviews | 4.4 out of 5 stars 19,061 Reviews |
| Global Trade Identification Number | 00079340308084 |
| Item Dimensions | 32 x 156 x 32 millimetres |
| Item Form | Liquid |
| Item Weight | 0.22 Pounds |
| Item dimensions L x W x H | 32 x 156 x 32 millimetres |
| Item weight | 0.22 Pounds |
| Manufacturer | Henkel Corporation |
| Manufacturer Part Number | 908570 |
| Material | Silicone |
| Model Number | 908570 3oz |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Door,Tile,Windows |
| UPC | 079340308084 |
| Unit Count | 80.0 millilitre |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
S**B
Excellent, long lasting.
Nice clear sealent, I bought the first tube neatly 2 years ago, to fix, and seal, a perspex splash back for the kitchen sink. This is still as good today as it was the day I installed it. The tube allowed me to apply a fine bead of sealent and wasnt as messy to use as the cartridges. I have also used it outside to fill small gaps around a south facing windows, were ants were getting in. The sealent is still usable two years on, as long as it is stored properly. I only bought a second tube because the original metal tube has been squeezed to oblivion and I have other worksurfaces that need resealing. It has stayed clear and hasn't turned milky coloured over time even it a very damp environment.
J**N
Good item
This product worked well in my bathroom
M**A
Good but slowish cure
Does the job but cures slowed than the large tubes in my opinion
L**M
Good value prompt delivery
Good value product. Prompt delivery.
J**N
FOOD just cannot stick to Silicone
For the past few years I've ONLY cooked using Silicone. Using Silicone has saved me a fortune on grease-proof paper; plain flour and oils which BEFORE I always NEEDED to use to prevent food from sticking to the containers I cooked the food in. This sealant adequately glues items together without allowing food to contaminate the adhesive properties of the product and I recommend anyone who cooks as often as I, purchasing it because it will save them lots of money in years to come as it has already done for me. I bought a cheap Silicone container which after its first use came apart. This product prevented me from throwing the item away because I was able to repair it adequately. Trouble with food container manufacturers is they DOWNRIGHT REFUSE to make adequately sized containers so I have to make these myself.
A**R
Nozzle does not stay on, but is useful for small jobs
I needed to seal an added rubber colour co-ordinated strip around my bath/shower, so I needed approx 8 metres of sealant beading. I figured this would be more precise than a large tube and gun. Firstly, the nozzle started moving away from the screw fitting after I first started to press the tube. Within 40 cms of application, both sides of the nozzle had popped and I needed to tape it down with some gaffer tape. About 3/4 the way inyo the job, the sealant started sweeping out of the sides of the gaffer tape so the nozzle had clearly popped off completely. To say there was sealant everywhere was a bit of an understatement. However, I found it cleaned off fairly easily with hand sanitiser so I just cleaned as I went, but it made it a very long and laborious job. Would I buy it again? No, maybe a smaller size so I can switch when it breaks, but I can't use anymore of the tube and it's not even half used - it's a total mess. It also makes your hands really sore where you have to keep pressing the tube (more so when it's coming out of every other available gap and not just the nozzle). Hopefully it does what is says and will allow us to freely use the shower again.
A**R
Did what it said on the tin.
Great
S**Y
Works
This works. Used to seal any joins where aquarium light is fitted together
S**Y
Excellent super glue
This is a nice super glue easy to use with the applicator-also you won’t use too much than required because you can control it with the side pumps. The tip will not be blocked as the cover provided helps that thing to happen HIGHLY RECOMENDED!
G**T
Bonne fixation
J’ai utilisé cette colle pour refixer le capteur arrière d’une Apple Watch avec succès. Le capteur est solidement fixé et l’étanchéité restaurée.
N**M
Clear sealant
Already applied it to perimeters of the sink and found it quite durable.
M**O
Qualità LOCTITE
Ottimo prodotto.
T**.
Nice aquarium silicone
Nice clear silicone & a little goes a long way! Comes with an anpplicator nozzle or you can use whatever you need to spread it out! Easy to apply & once dried holds well. Held handled on my lids & some aquarium items that needed to be repaired held up! The fact it’s clear is a bonus.
Trustpilot
3 days ago
1 month ago