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Permatex

Permatex 25228 The Right Stuff 90 Minute Black Gasket Maker, 3 oz, 1 Count (Pack of 1)

  • Based on 1,544 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Aug 11
Order within 16 hours and 47 minutes
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Size: 3 Fl. Oz.


Style: The Right Stuff 90 Min


Features

  • Strong and Fast Seal
  • Replaces Precut Gaskets
  • Blowout Resistant
  • Ideal Applications Include Valve Covers, Intake Manifolds, Coolant Flanges, Oil Pans, Timing Covers, Heavy-Duty Truck and Fleet
  • An additional application nozzle is included in every package for multiple use convenience.

Description

Are you tired of waiting to road test a vehicle once the job is done? Ever had to hold a customer’s car overnight just to ensure your silicone applications fully cured? Well wait no longer – Introducing The Right Stuff 90 Minute Gasket Maker from Permatex. This superior product not only outperforms conventional pre-cut gaskets, but also cures in just 90 minutes. This is the only silicone on the market available in a squeeze tube that allows record return to service time. The Right Stuff 90 Minute Gasket Maker was formulated to provide a strong and fast high flex silicone seal that offers excellent durability.

Material: Plastic


Brand: Permatex


Style: The Right Stuff 90 Min


Item dimensions L x W x H: 1.5 x 3.81 x 8 inches


Water Resistance Level: Water Resistant


Brand Name: Permatex


UPC: 686226252289


Unit Count: 1.0 Count


Global Trade Identification Number: 89


Number of Items: 1


Part Number: 25228


Model: 25228


Item Type Name: Gasket Maker


Manufacturer: Permatex


Included Components: Gasket Maker


Warranty Description: No_warranty


Water Resistance Level: Water Resistant


Item Form: Liquid


Compatible Material: Metal, Plastic, Rubber


Item Dimensions: 1.5 x 3.81 x 8 inches


Style Name: The Right Stuff 90 Min


Color: Black


Surface Recommendation: Miscellaneous


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Fantastic Gasket Maker for Quick Fixes
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
This gasket maker is a total game-changer for any DIY enthusiast 🔧. It works like a charm and is super easy to use. The best part? It sets in just 90 minutes, so you can get back to your project in no time ⏱️. One thing to keep in mind is that it's a bit on the pricey side 💸, but considering the quality and quick drying time, it's totally worth it. Whether you're a pro or just starting out, this Permatex 25228 The Right Stuff 90 Minute Black Gasket Maker will definitely come in handy for all your sealing needs! 🔥Happy fixing, folks! 🛠️👍 ... show more
Reviewed in the United States on September 29, 2025 by Joyce Tanoury
    • The GOAT of RTVs, worth the money...
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
Used to seal a plain old stamped steel lower oil pan to the aluminum upper oil pan. Followed directions, zero leaks, cures just as fast as directions state: finger tighten, then 60 minutes wait, then torque to spec, then 30 minutes wait, then pour oil in. About the only bad part (and it isn't their fault) is how annoying it is to squeeze it out with a continuous pressure because it's a tube, companies sell "tube dispensing pliers", I just don't do enough of these to justify buying one. Some may wonder just how well it adheres and how easy it is to remove after a fresh application. I had to remove the pan roughly four weeks after resealing with Right Stuff (reason for removal had nothing to do with Right Stuff), so I was able to test the adhesion as well. The old RTV that was on the pan for fourteen years was so weak and already seeping oil past it, that just inserting a putty knife by hand and twisting at one corner removed the entire pan. Right Stuff adhered so well that I had to insert the putty knife into three corners, by hammer, twist just to even start splitting, then do a lot of downward pulling. No damage (or bending) occurred to the pan and it does come off but the adhesion is extremely tight. With the pan bolts on I can see why this wouldn't leak oil and it's been months now with zero drops of oil. Getting the remnants off the lower and upper oil pan was mildly annoying since it was stuck on well, but nothing plastic razor blades couldn't fix. On the second time around re-sealing the pan, I used the same tube of Right Stuff, the pan is 14x9 inches so the tube had enough to do that pan about three times with a ~4mm bead, if you like to smear it rather than bead it, you can probably get more out of it if you smear it without waste. After four weeks the Right Stuff in the tube was just as pliable as when I first bought it, I've never had to re-seal back to back like this with a four week gap between, usually the gap between when I use a tube is months to years and it's dried up by that point, so just know it's going to last a while. Save the plastic nozzle when you're done with it, if you throw the nozzle away you're going to need to buy the nozzle four pack that Permatex sells if you need it again anyway. The nozzle may look like a lost cause because of the RTV in it, but just let it dry and cure, once it dries and cures, it becomes a plug that when pushed (with a pick, ballpoint pen, etc), comes out completely leaving no residue or mess in the nozzle, doesn't adhere to it at all. Also don't attempt to clean the RTV out of the nozzle while it's still wet, you're either going to need solvents which will damage the plastic, or you're just going to spread the RTV thin on the walls of the nozzle and when it dries you're going to have to scrape the inside up to flake it off. Keep it simple, leave the mass of RTV in there whole so that it all comes out together as one piece/plug. ... show more
Reviewed in the United States on December 16, 2022 by J
    • Reliable Sealant for High-Torque Applications
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
I absolutely love the Permatex 25228 Ultra Grey RTV Silicone Gasket Maker for my car repair projects. It consistently delivers a strong, durable seal that can withstand pressure, making it perfect for high-torque applications. The quick setting time and ease of application have made my repair process much smoother. I particularly appreciate that it's sensor-safe and non-corrosive, ensuring the safety of sensitive engine parts. The 13 oz tube size is just right for multiple uses, and the long-lasting results speak for themselves. Say goodbye to leaks and shifting gaskets - this product keeps everything in place reliably. I highly recommend this for anyone in need of a trustworthy sealant. ... show more
Reviewed in the United States on June 27, 2025 by jason fobare
    • Works great for quick repairs
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
Zipping through a weekend project, i used this Permatex gasket maker to seal a small engine part. it’s handy and sets pretty fast which saved me time. no leaks so far and it held up well during a test run. really glad i grabbed this instead of waiting around.
Reviewed in the United States on April 16, 2026 by Stephen M McClellan
    • The correct “right stuff “
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
This stuff is awesome. Used for years. Black for things like valve covers, differential covers, and intake. The grey is used for machine fit. Don’t over apply. Quick drying. Leak free with proper prep.
Reviewed in the United States on June 14, 2026 by kyemt
    • Works fast and seals up tight
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
With two kids and an old SUV, I needed something to fix a small oil leak without losing a whole weekend. I grabbed this gasket maker after seeing a mechanic talk about it online. Cleaned the surface, laid a steady bead, let it sit, then bolted everything back together before school pickup. No drips on the driveway the next morning and that made me so glad I tried it. i like that I don’t have to mix anything or hunt for extra tools. Just squeeze, shape, wait, done. For a quick driveway repair while the baby naps, this works well. ... show more
Reviewed in the United States on June 6, 2026 by Kenneth Cudd
    • Simple and effective for quick setups
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
Satisfied with how quickly it assembles and how it performed during a trial. It didn’t leak at all and held steady. Happy I chose this one instead of delaying the purchase.
Reviewed in the United States on April 22, 2026 by Smitha Devaram
    • Great product
Size: 3 Fl. Oz. Style: The Right Stuff 90 Min
Product always works great
Reviewed in the United States on May 21, 2026 by peter oliviero

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