Permatex 81158 Black Silicone Adhesive Sealant, 3 oz. Tube, Pack of 1

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.

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.

I wanted to wait a while after applying this to my car before leaving a review. It’s been a few months now, and I originally noticed water seeping in through the rear window because of wear and tear on the rubber seal. I was skeptical at first since this product was so inexpensive, but I’m genuinely impressed with how well it sealed the gap. I live in an area where it rains about 80% of the year, and this product has held up perfectly. Two big thumbs up from me!

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.

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.

This sealant is one of those products that earns its place in the toolbox and never leaves. It seals, sticks, and stays put, whether it’s fixing a car gasket, patching a leak, or repairing something around the house that other adhesives just shrug at. The consistency is smooth, it cures evenly, and once it sets, it’s practically part of the material itself. What really stands out is how many uses this little tube quietly handles without fuss or failure. It’s the kind of product that doesn’t need gimmicks or fancy packaging. It just performs flawlessly every single time. After a few uses, you start to realize it’s the sort of thing you’ll keep reordering long before you run out. If you value dependability over hype, this sealant is it. It’s the unsung hero of small repairs. It's strong, tidy, and endlessly useful. Heat resistant and great value for money.

Really nice product, this is a reorder since I have used the first tube. It will last if you seal the tube tightly. Great for repairing shoe's with black soles.

It works and is great . But really a one time use then trash because there is. Nothing to seal it . The inner tube will get clogged

great stuff, even worked well in the rain

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。

It worked really well. Good quality.

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!

Tutto ok