







🛠️ Seal smart, live stylish — the silicone that works as hard as you do!
Otto Seal S 100 is a premium, 1K acetate-based sanitary silicone sealant designed for indoor and outdoor use. It offers superior crack resistance with 50% movement absorption, is mold and bacteria resistant, and comes in 84 colors including trendy mattes. Easy to apply with a short thread pull, it adheres without primer to multiple surfaces, making it ideal for bathrooms, kitchens, and living areas. Highly rated for durability and hygiene, it cures fully in 24 hours and is low-emission certified for safe indoor use.







| ASIN | B009B6HL0Q |
| Best Sellers Rank | 106,565 in DIY & Tools ( See Top 100 in DIY & Tools ) 66 in Silicone Caulk |
| Brand | OTTOSEAL |
| Colour | White |
| Country Of Origin | Germany |
| Customer Reviews | 4.8 4.8 out of 5 stars (565) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 04030574038570 |
| Item Form | Paste |
| Item Weight | 358 g |
| Liquid Volume | 300 Millilitres |
| Manufacturer | UNKWN |
| Material | Silicone |
| Surface Recommendation | tile,pipe,sink,bathtub |
| Tensile Strength | 43.5 Pounds Per Square Inch |
| Unit Count | 300.0 millilitre(s) |
| Water Resistance Level | Water Resistant |
R**N
It's thicker and doesn't flow like most silicon sealants but does the job well. Very good.
Thinker than most silicon sealants. High with and brightness. I used it because the marble worktop fitter used and recommended. It's not cheap but it is good.
P**R
A great sealer but expensive
The sealer works very well indeed, I used it first on a Twusch fitting to my Thetford Toilet, but I will continue to use it elsewhere, but it is expensive compared to the ordinary sealer from a local hardware store. Is it worth it? I'm not sure, but it is very easy to use and, hopefully, will last a long time.
V**D
Avoid this mess
Unless you have 10 years of hands-on experience applying silicone for 10 hours a day, I strongly recommend staying away from this product. It’s incredibly thick, and applying it evenly or neatly is nearly impossible. It will stick to everything it shouldn’t — and almost certainly won’t stick where it’s actually needed. I don’t question the skills of the engineers behind this formula, but they clearly need to sit down with their marketing team. Because before you can appreciate the supposed quality of this product, you have to somehow manage to apply it correctly — and that’s just not going to happen without a five-hour instructional video (which, by the way, doesn’t exist). And here’s the cherry on top: for your £18, they don’t even bother including a nozzle. Apparently, it’s so “premium” you’re expected to go buy one separately.
S**U
Un peut chère mes de très bonne qualité à voir sur le long terme
S**M
Excellent 👍
S**S
Gewohnt gute Qualität. Das Silikon von Otto ist sehr gut zu verarbeiten und macht seinen Job einwandfrei, wenn richtig aufgebracht. Besonders positiv fand ich, dass die Ware gut verpackt, deutlich schneller ankam als versprochen.
C**S
Produit de bonne qualité Je recommande
H**D
Gutes Silikon
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