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J-B Weld

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

    • Based on 14,319 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Monday, Nov 18
Order within 20 hours and 17 minutes
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Color: Red


Size: 3 Ounce


Features

  • HI TEMP RED SILICONE GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550o F or 650o F intermittent might exist
  • COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work. With each product we innovate, we continue to provide the world's strongest bond for your projects
  • EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is sensor safe
  • VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors
  • DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond

Description

J-B Weld Hi-Temp Red Silicone Gasket Maker & Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering, is sensor safe and is great for many automotive applications.

Brand: J-B Weld


Specific Uses For Product: Repair


Material: Silicone


Compatible Material: Metal


Item Form: Gel


Manufacturer: JBWeld


Model: 31314


UPC: 043425313140 043425700193


Global Trade Identification Number: 40


Brand Name: J-B Weld


Container Type: Tube


Water Resistance Level: Waterproof


Item Form: Gel


Special Features: Crack Resistant, Waterproof, Strong


Specific Uses For Product: Repair


Compatible Material: Metal


Volume: 3 Fluid Ounces


Item Package Quantity: 1


Color: Red


Material Type: Silicone


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 18

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Dependable Sealant and Adhesive: A Review of J-B Weld 31319 Black RTV Silicone Sealant
Color: Black Size: 3 Ounce
I recently had the opportunity to use the J-B Weld 31319 Black RTV Silicone Sealant and Adhesive, and I must say, I am thoroughly impressed with its performance and versatility. As someone who frequently tackles DIY projects and repairs around the house, finding a reliable sealant and adhesive is essential, and this product certainly delivers. One of the standout features of the J-B Weld 31319 is its exceptional durability. Once applied, it forms a strong and resilient bond that withstands a wide range of environmental conditions, including temperature fluctuations, moisture, and vibration. Whether I'm sealing gaps in plumbing fixtures or bonding materials together, I can trust that this silicone sealant will hold up over time. Another aspect of this product that I appreciate is its ease of use. The nozzle allows for precise application, minimizing waste and mess during the sealing process. The consistency of the sealant is ideal—not too runny, yet smooth enough to spread evenly and fill in cracks and gaps effectively. Cleanup is also a breeze, as the excess sealant can be easily wiped away with a cloth or sponge. The black color of the sealant is a nice touch, especially for applications where aesthetics are important. It blends seamlessly with dark surfaces, providing a clean and professional finish that enhances the overall appearance of the project. Furthermore, the versatility of this product makes it a valuable addition to any toolkit. Whether I'm sealing leaks in automotive components, repairing household appliances, or even crafting custom projects, the J-B Weld 31319 proves to be a reliable solution time and time again. In conclusion, I can wholeheartedly recommend the J-B Weld 31319 Black RTV Silicone Sealant and Adhesive to anyone in need of a dependable sealant and adhesive for a variety of applications. Its durability, ease of use, and versatility make it a standout product in its category, and I will certainly continue to rely on it for all my sealing and bonding needs in the future. ... show more
Reviewed in the United States on February 29, 2024 by Nathaniel Bornstein
    • Product works great, container broke
Color: Clear Size: 3 Ounce
Review Image by John John
The seal on the backend broke causing glue to shoot out the wrong end. Used as much as I could on a few different things. The glue itself works amazingly well. Just bought another 2 tubes.
Reviewed in the United States on September 18, 2024 by John John
    • Works as it should
Color: Clear Size: 3 Ounce
Review Image by Curtis Curtis
Used this to fill in holes on my homemade solar charged 12v battery pack. Squeezes out of the tube easily and seals very well but is nice and thick. Color is clear and clean. There's not an extremely overpowering scent. Seems like it will work well and last a long time.
Reviewed in the United States on October 23, 2024 by Curtis Curtis
    • The good, the bad, and the sticky.
Color: Clear Size: 3 Ounce
Overall, this product works well and is safe for aquarium use, which is great peace of mind for fishkeepers. The Pros: It's definitely aquarium-safe, and the set time is accurate as advertised. The Cons: Be aware—it has a strong chemical smell. While it's expected for silicone, it's quite intense. The Caution: The silicone is sticky, which is normal, but the real issue is the packaging. The tube is made of metal, and if you squeeze or roll it a bit too hard, it can split open, leading to silicone spilling onto your hands. I’d recommend wearing gloves to avoid a mess. In terms of functionality, I would recommend this product for aquarium applications. However, the packaging could be improved, as I ended up losing a fair amount of silicone due to leakage. ... show more
Reviewed in the United States on November 5, 2024 by MrLakeShow
    • great stuff works well
Color: Clear Size: 3 Ounce
Very easy to use make sure you use it in a well ventilated area
Reviewed in the United States on October 29, 2024 by Buck
    • Durable and Reliable
Color: Red Size: 3 Ounce
This high temperature silicone sealant is a must-have for any DIY enthusiast or professional! It handles high temperatures effortlessly, making it perfect for sealing gaps and joints in heat-prone areas like ovens, fireplaces, and engines. The application is smooth and easy, and the sealant cures to form a durable, flexible, and waterproof seal. I’ve used it for multiple projects, and it has consistently performed excellently, holding up well under extreme conditions. The tube design is convenient, allowing for precise application. ... show more
Reviewed in the United States on August 3, 2024 by A.N.
    • Works well
Color: Red Size: 3 Ounce
It’s quite easy to clean up with Isopropyl alcohol if you make a mess. It takes less 24hrs for it to fully set it works well.
Reviewed in the United States on October 3, 2024 by Sarah
    • Always getting 1 offs..
Color: Red Size: 3 Ounce
Review Image by Brittany perry Brittany perry
I'm sure it was just *packing* error on jb welds part. It seems to be happening with all my orders though. I did splurge a little bit on the name brand. Yes, I am using it for mycology purposes. Having the tip applicator would have made it it a zillion times more easy and clean... 😫 but I needed it.
Reviewed in the United States on October 14, 2024 by Brittany perry Brittany perry

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