

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.
🖤 Seal it like a pro, weatherproof your world!
Permatex 81158 Black Silicone Adhesive Sealant is a professional-grade, sensor-safe RTV sealant designed for indoor and outdoor use. It bonds and repairs a wide range of materials including glass, metal, plastics, and vinyl, offering waterproof, weather-resistant, and vibration-proof protection. With a broad temperature tolerance from -75°F to 450°F and a quick tack time, it’s the trusted choice for automotive and home repairs that demand durability and flexibility.














| ASIN | B000AL6WLA |
| Best Sellers Rank | #198 in Automotive ( See Top 100 in Automotive ) #1 in Body Repair & Restoration Adhesives |
| Brand Name | Permatex |
| Color | Black |
| Compatible Material | Fabric, Glass, Metal, Plastic, Vinyl |
| Container Type | Tube |
| Customer Reviews | 4.6 4.6 out of 5 stars (11,344) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00686226811585 |
| Included Components | Auto part, Automotive Accessories, Replacement and Performance parts |
| Item Form | Tube |
| Item Package Quantity | 1 |
| Item Type Name | Silicone Adhesive Sealant |
| Item Weight | 0.2 Pounds |
| Manufacturer | Permatex |
| Material Type | Silicone |
| Model | 81158 |
| Other Special Features of the Product | sensor-safe |
| Specific Uses For Product | Seals, bonds, repairs, mends and secures glass, metal, plastics, fabric, vinyl, weather stripping and vinyl tops, Protects and repairs electrical wiring |
| UPC | 686226811585 |
| Unit Count | 3.0 Ounce |
| Viscosity | Medium |
| Volume | 3 Fluid Ounces |
| Warranty Description | Manufacturer Warranty |
| Water Resistance Level | Waterproof |
M**R
Fixed my door seals !!! 10/10 ! Must buy strong hold !
I read the comments first before purchasing and they were not lying ! So my weather strip on my car both driver side and passenger door start peeling off. I should have made a video so yall can see that this stuff actually works ! Last night it rained and I applied this product before it rained. And guess what I came out side to look inside my car to see if rain got in there ! And yall no rain made it inside my car ! Not even a single drop ! The tackiness is 10/10 ! Yes it’s heat resistant and a cheap fix for fixing your door seals. Now make sure y’all before when squeezing the product out because it can be a little messy , if you’re not careful. But other than that 10/10 so glad I brought this ! No odor smell to it at all and dries fast.
Y**Y
Great adhesive especially for attaching carbon fiber parts to vehicles.
Been using Permatex for several decades and this is my go to brand for most if not all automotive sealants and adhesive. This stuff works great for attaching a carbon fiber cover on my mobile antenna. It takes about an hour to lose it's tackiness and about 24 hours to be fully cured. Also keep in mind this black adhesive is messing especially when it gets on your fingers and hands. Just use WD-40 on a terry cloth to clean your hands and all of the black adhesive should comes off with little fuss. This stuff works great and it's been over 24 hours and there's no leaks even with the past two day it's been raining pretty heavy. The for money, it's great stuff to fix and repair or to fill in gaps and holes on many surfaces.
C**N
It’s versatile, and worth the money!
I picked up this Permatex black silicone adhesive sealant for a few small repairs, and it ended up being one of the most versatile products I’ve used. It applies smoothly, cures to a strong and flexible hold, and bonds well to everything from plastic and metal to rubber and glass. I used it on a weather-exposed automotive trim piece and a small interior repair, and it sealed perfectly with no peeling or cracking. Once cured, it’s tough, completely waterproof, and holds up great against heat and vibration. I really appreciate that it’s suitable for both interior and exterior use, which makes it a reliable go-to for all kinds of DIY fixes. Overall, a dependable, long-lasting adhesive that’s absolutely worth keeping in a toolbox.
S**A
It's RTV ... does what it's supposed to do ... but don't squeeze too hard on the tube
Permatex is a well-known, trustworthy brand. This is RTV. Nothing complicated & does what it should. However, the packaging is weak and if you are a man with a man's grip, be careful. The tube will break & the RTV will be all over your hands rather than on the work space.
D**E
Fine product
Good product bit messy but does a good job
K**D
Good Sealant for Door Weatherstripping
I was replacing all the weatherstripping in my 56 year old Buick muscle car. This was a good adhesive to seal the ends that fit under the door panels. More than enough to do both doors.
J**R
Good product.
It's pretty much the gold standard of RTV sealants. I've been using it for many years and it has never let me down. Just make sure the mating surfaces are clean and oil free so it can make a good bond. Brake cleaner works well for cleaning and degreasing prior to assembly.
D**S
Don't use it on your shoes!
This stuff is NOT the same as Shoe Goo. For a while now I've been almost resoling some back soled shoes (they're no longer made) with Shoe Goo as I have over pronation and the back side of the heel wears out fast. I often would rebuild the heel with SG, then during the first walk it would sort of sand itself back to smooth and blend right in. Foolishly, I tried doing the same thing with this stuff and it behaved very differently. Where SG is more like liquid rubber, this stuff is more just like black caulking. So it rebuild my heel but rather then sort of sanding down like a normal shoe sole (or SG) it instead just sort of tears away and rips. It still sticks to your shoe (so far anyway) but it will forever look messy. I learned my lesson here, as is often true, you get what you pay for. Back to Shoe Goo I go. I'm sure this stuff is great for other things, but I would strongly not recommend it for shoes. FWIW, I don't think they do either but I saw a reviewer or two here who did. There were some parts of the shoe where the sole was pulling away and I tried to sort of glue those spots like I do with SG and it sadly failed there too.
E**S
great stuff, even worked well in the rain
M**T
Not yet tried but it looks great
W**R
グリルマーカーを付けるためにグリルに穴あけをして裏側の配線ごと接着、防水シーリングとして使用。一晩放置で完全に固まって3ヶ月経ってもグラ付きは無いです。効果は文句無し。ただチューブ製なので作業しているとやがて手が真っ黒になって洗い落とすのが大変になるので手袋が必須です。
A**0
It worked really well. Good quality.
E**Z
No es exageración. Un apretón (de acuerdo a las instrucciones y si no puedes ver algún video tutorial por si dudas de cómo aplicarlo, yo dudé) y comienza la magia. Es un polvito negro muy fino por lo que guantes o una limpieza de manos a conciencia es recomendable. Las chapas y cerraduras con problemas de que la llave no entra a la primera, se debe aplicar fuerza o rechina simplemente comienzan a desaparecer al paso de la primer aplicación. Yo juegué un poco con las llaves (meter, sacar, meter, sacar, girar) un par de veces para que el polvo comience a esparcirse. EXCELENTE AHORA! Con el paso de los días (creo porque se va distribuyendo mejor) su funcionamiento se vuelve mejor. Sigan las instrucciones y contraindicaciones ya que parece un artículo fácil pero requiere de su atención. Volveré a comprar sin dudarlo. Lo combiné con un lubricante de litio que también compré en Amazon y la verdad hasta gusto me da abrir mis puertas!
Trustpilot
1 month ago
1 month ago