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

Based on 5,978 reviews
Condition: New
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$7.89
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Availability: In Stock.
Fulfilled by Amazon

Arrives Nov 4 – Nov 5
Order within 20 hours and 26 minutes

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At a glance

Condition
New
Size
3 oz
Dimensions
1.97 x 1.57 x 6.3 in
Weight
90 g
Color
HI-TEMP RED
Material
Silicone
Style
Compact
In the box
JBWeld 31314
Warranty
LIMITED WARRANTY

Features 5

  • 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

Description

J-B Weld Hi-Temp Red RTV Silicone Gasket Maker and Sealant J-B Weld Hi-Temp Red Silicone Gasket Maker and 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 550 degrees F or 650 degrees 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. Great for: Oil Pans Valve Covers Exhaust Manifolds Water Pumps Timing Covers Differential Covers Drive Housings Oven Doors Use on: Automotive Metal And moreInstructions1. Prepare: Clean surface area of dirt, grease, oil, paint or loose debris. For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the best repair. 2. Apply: Apply even, continuous ¼ inch bead of Silicone to one surface area. Surround all bolt holes with Silicone. 3. Assemble: Reconnect parts while Silicone is wet. 4. Secure: Hand tighten until Silicone begins to squeeze out. 5. Dry: Allow drying for 1 hour and then tighten an additional 1/2 turn. 6. Finish: Scrape or cut away excess cured sealant. Silicone will fully cure in 24 hours. J-B Weld is proudly made in the USA

Specs 23

Material Silicone
Brand J-B Weld
Style Compact
Item Weight 90 g
Item dimensions L x W x H 1.97 x 1.57 x 6.3 inches
Brand Name J-B Weld
UPC 043425313140 043425700193
Number of Packs 1

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 4 – Nov 5

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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Top Amazon Reviews


Good sealant
Size: 3 Ounce
This worked as it should for my exhaust gasket so far, it’s been durable with no leaks.
Reviewed in the United States on September 25, 2026 by Jim S 1959

Overall very pleased for my application.
Size: 3 Ounce
I used this product to adhere new feet to my Wolf Gas Stove Top Grates. Nothing else that I tried worked. This has been the perfect solution for me. Dries quickly, low odor, dries clear, easy to use. Great value as well.
Reviewed in the United States on August 30, 2026 by Kris Walker

Works great to make automotive gaskets
Size: 3OZ 2 Pack
This is pretty good stuff. I bought it to make the china wall gaskets on the ends of my sbc intake. And it works really good. No more leaks. I have always used the grey right stuff rtv. But this has a higher heat rating. So I decided to try it. And it works great
Reviewed in the United States on May 14, 2026 by Bill H.

Good
Size: 3 Ounce
Good
Reviewed in the United States on January 11, 2026 by Tracy F.

works great
Size: 3 Ounce
well packaged received on time
Reviewed in the United States on September 19, 2026 by George R. Cope

Works well
Size: 3 Ounce
All good
Reviewed in the United States on September 6, 2026 by Wallace Haas

Works Great on my Steam Iron Repair
Size: 3 Ounce
Excellent Heat Resistance! Be sure to let it fully cure before putting it through its paces. I used this one inside my wife's 25yr old Steam Iron where the water tank gromets passing water to the hot plate finally gave out. She loves her old Iron and I love her, so the effort was well worth it.
Reviewed in the United States on June 9, 2026 by Steven Hartney

Stick together
Size: 3 Ounce
Stick together
Reviewed in the United States on August 15, 2026 by Jesse E. Gonzales
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