--- product_id: 64478486 title: "J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz." brand: "j-b weld" price: "108.86 DT" currency: TND in_stock: true reviews_count: 13 category: "J B Weld" url: https://www.desertcart.tn/products/64478486-j-b-weld-31314-high-temperature-rtv-silicone-gasket-maker store_origin: TN region: Tunisia --- # Waterproof & weather-resistant seal Withstands up to 550ºF continuous heat Sensor-safe & crack-proof durability J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. **Brand:** j-b weld **Price:** 108.86 DT **Availability:** ✅ In Stock ## Summary > 🔥 Seal the deal with J-B Weld – where heat meets unbeatable hold! 🛠️ ## Quick Answers - **What is this?** J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. by j-b weld - **How much does it cost?** 108.86 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/64478486-j-b-weld-31314-high-temperature-rtv-silicone-gasket-maker) ## Best For - j-b weld enthusiasts ## Why This Product - Trusted j-b weld brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heat-Defying Sealant:** Engineered to endure extreme temperatures up to 550ºF continuous and 650ºF intermittent—perfect for high-performance mechanical assemblies. - • **DIY-Ready Versatility:** Ideal for automotive, metal, and household repairs—whether it’s oil pans, exhaust manifolds, or oven doors, get professional results at home. - • **Trusted Legacy of Strength:** Backed by 40+ years of innovation, J-B Weld delivers the world’s strongest bond trusted by pros and enthusiasts alike. - • **Long-Lasting Waterproof Bond:** Forms a tough, flexible seal that resists cracking, shrinking, and weathering, ensuring your projects stay leak-free and flawless. - • **Easy Application & Fast Curing:** Moisture-activated curing means no hassle—just apply, let air do the work, and enjoy a sensor-safe, resilient gasket every time. ## Overview J-B Weld 31314 High Temperature RTV Silicone Gasket Maker & Sealant is a red, room-temperature vulcanizing silicone designed for mechanical assemblies exposed to extreme heat up to 550ºF continuous and 650ºF intermittent. It cures upon exposure to moisture, creating a waterproof, crack-resistant, and sensor-safe seal ideal for automotive and metal applications. Trusted for over 40 years, this compact 3 oz. tube offers professional-grade durability and versatility for DIY enthusiasts and pros alike. ## Description From the manufacturer J-B Weld Silicone Sealant & Adhesive 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 550°F or 650° intermittent might exist. Upon curing, which occurs when the product is exposed to the moisture in the 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. Review: Good quality product - I had to rebuild and repair an old 1940s copper diesel tank, the original cork gasket was disintegrated so I used this to make a seal around the hatch and after two months of use it seems to be holding its own. I’d buy again if required. Review: Really useful high temp sealant that works very well. - Great high temperature sealant, if stored properly a tube will last you years (writing this review nearly 2 years after my purchase) and its still good with no seperation. If you properly prepare the surfaces by removing all debris and grease this sealant will work for many different applications and materials - if using it on oil pans it is critical you clean the mating surfaces meticulously and degrease them thouroughly, apply a bead and smear it with a gloved finger or plastic spatula and reapply some where it thins out so you get a good even coverage to avoid it blobbing out and don't forget to retorque the pan with a criss cross pattern to make sure you're evenly spreading the torque so the rtv doesn't thin out where there are machining imperfections on the mating surfaces - if you're failing to get a oil pan seal you have a very distorted pan head which is very common, you might be better off using the proper gasket for the pan with loctite 5923 as a liquid gasket and apply this rtv on any joints using the smear technique. I've used it recently as a make shift gasket to replace a impossible to source gasket for a throttle body in a 2012 kia ceed 1.6 crdi that has a EGR and DPF, it's easy to apply with the tapered cap, it cures within a really reasonable amount of time, it's affordable and it has many applicable uses. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00ID8IUJY | | Best Sellers Rank | 3,015 in DIY & Tools ( See Top 100 in DIY & Tools ) 61 in Sealers | | Brand | J-B Weld | | Colour | Red | | Compatible Material | Metal | | Country Of Origin | USA | | Customer Reviews | 4.6 out of 5 stars 6,969 Reviews | | Global Trade Identification Number | 00043425313140 | | Included Components | JBWeld 31314 | | Item Dimensions | 50 x 40 x 160 millimetres | | Item Form | Liquid | | Item Type Name | SEALANT | | Item Weight | 90 Grams | | Item dimensions L x W x H | 50 x 40 x 160 millimetres | | Item weight | 90 Grams | | Manufacturer | JBWeld | | Manufacturer Part Number | 31314 | | Material | Silicone | | Model Number | 31314 | | Number of Items | 1 | | Product Warranty | No Warranty | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Door | | UPC | 043425313140 043425700193 | | Unit Count | 85.0486 gram | | Water Resistance Level | Waterproof | | Water resistance level | Waterproof | ## Product Details - **Brand:** J-B Weld - **Item dimensions L x W x H:** 50 x 40 x 160 millimetres - **Item weight:** 90 Grams - **Material:** Silicone - **Style:** Compact ## Images ![J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. - Image 1](https://m.media-amazon.com/images/I/71m-6gPy-6L.jpg) ![J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. - Image 2](https://m.media-amazon.com/images/I/61MJViFZ49L.jpg) ![J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. - Image 3](https://m.media-amazon.com/images/I/71A4pIyfsvL.jpg) ## Questions & Answers **Q: Is this OK with petrol fuel** A: I used it for the gasket sealer in the cylinder of my petrol/ 2 stroke oil chainsaw and all is good six months later. Mine was however, black and not red although I am aware that red sealer is used on the stihl chainsaws from new. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality product *by I***S on 16 April 2026* I had to rebuild and repair an old 1940s copper diesel tank, the original cork gasket was disintegrated so I used this to make a seal around the hatch and after two months of use it seems to be holding its own. I’d buy again if required. ### ⭐⭐⭐⭐⭐ Really useful high temp sealant that works very well. *by D***L on 2 September 2025* Great high temperature sealant, if stored properly a tube will last you years (writing this review nearly 2 years after my purchase) and its still good with no seperation. If you properly prepare the surfaces by removing all debris and grease this sealant will work for many different applications and materials - if using it on oil pans it is critical you clean the mating surfaces meticulously and degrease them thouroughly, apply a bead and smear it with a gloved finger or plastic spatula and reapply some where it thins out so you get a good even coverage to avoid it blobbing out and don't forget to retorque the pan with a criss cross pattern to make sure you're evenly spreading the torque so the rtv doesn't thin out where there are machining imperfections on the mating surfaces - if you're failing to get a oil pan seal you have a very distorted pan head which is very common, you might be better off using the proper gasket for the pan with loctite 5923 as a liquid gasket and apply this rtv on any joints using the smear technique. I've used it recently as a make shift gasket to replace a impossible to source gasket for a throttle body in a 2012 kia ceed 1.6 crdi that has a EGR and DPF, it's easy to apply with the tapered cap, it cures within a really reasonable amount of time, it's affordable and it has many applicable uses. ### ⭐⭐⭐⭐ Did the job but cheaper options out there. *by O***S on 13 May 2025* Used as a sealant for a motorcycle paper gasket, for the price it was OK. It did the job but I think they may be alternative products that would have done it cheaper. ## Frequently Bought Together - J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz. - 1/4" ID Silicon Tubing, JoyTube Food Grade Silicon Tubing 1/4" ID x 3/8" OD 10 Feet High Temp Pure Silicone Hose Tube for Home Brewing Winemaking - ANPTGHT 1/4” Thru-Bulk Bulkhead Plastic Hose Barb Fittings Union Adapter Fittings for Aquarium Fuel Gas Liquid Air with Metal washers (Pack of 6) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/64478486-j-b-weld-31314-high-temperature-rtv-silicone-gasket-maker](https://www.desertcart.tn/products/64478486-j-b-weld-31314-high-temperature-rtv-silicone-gasket-maker) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-21*