---
product_id: 17058346
title: "J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz."
brand: "j-b weld"
price: "€ 12.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "J B Weld"
url: https://www.desertcart.ie/products/17058346-j-b-weld-31314-high-temperature-rtv-silicone-gasket-maker
store_origin: IE
region: Ireland
---

# 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:** € 12.25
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with the heat-proof hero of your toolbox!

## 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?** € 12.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/17058346-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

- • **Built to Last:** Resists shrinking, cracking, and weathering for a reliable, long-term bond.
- • **Trusted Legacy:** Over 40 years of industry-leading strength and loyalty from pros who demand the best.
- • **DIY-Ready Formula:** Easy air-moisture curing means you get a tough, professional-grade seal without the hassle.
- • **Heat-Defying Sealant:** Handles extreme temps up to 550ºF continuous, 650ºF intermittent—no meltdown here.
- • **Versatile Application:** Perfect for automotive, metal, exhaust, water pumps, and even oven doors—one tube, endless fixes.

## Overview

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker & Sealant is a professional-grade, red silicone gel designed to create durable, waterproof seals that withstand continuous temperatures up to 550ºF and intermittent spikes to 650ºF. Sensor-safe and weather-resistant, it cures quickly with air moisture to form a crack-proof gasket ideal for automotive and mechanical repairs, trusted by experts for over four decades.

## 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.

Review: Lasted over a year & counting. Great quality! - Quality is great! I used on a waterpump install on a Nissan Xterra and no leaks or issues after a year! Product is still usable and hasn't went bad in tube.
Review: Fixed the oven door - Bought this because the trim on our gas range oven door kept popping off. So I bought this silicone for the fix. Works great with a nice thick bead around the trim, no more popping off.

## 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 | #6,522 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Silicone Adhesives |
| Brand | J-B Weld |
| Color | Red |
| Date First Available | September 1, 2004 |
| Global Trade Identification Number | 00043425313140 |
| Is Discontinued By Manufacturer | No |
| Item Form | Gel |
| Item Weight | 3.17 ounces |
| Item dimensions L x W x H | 1.97 x 1.57 x 6.3 inches |
| Item model number | 31314 |
| Manufacturer | JBWeld |
| Material | Silicone |
| Number of Items | 1 |
| Product Dimensions | 1.97 x 1.57 x 6.3 inches |
| Style | Compact |
| Surface Recommendation | Door |
| UPC | 043425313140 043425700193 |
| Unit Count | 3.0 Ounce |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** J-B Weld
- **Item Weight:** 90 Grams
- **Item dimensions L x W x H:** 1.97 x 1.57 x 6.3 inches
- **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)

## Questions & Answers

**Q: My portable convection oven (heats to 500 degrees) glass door fell out of the metal bracket. Would this work to glue it back in?**
A: Be careful of sealant giving off toxic fumes the first few times you use it.  Try heating up the oven 2-3 times before actually placing food inside that could absorb the toxic off-gasses.

**Q: Would this be a good product for sealing a crack in a dishwasher liner?**
A: Yes- I did this, along with filling in a gap on the dishwasher door gasket (which was ultimately replaced).  
Worked great!  
Be sure to clean the surface and rough it up a little (a bit of sandpaper, then clean the sandpaper dust off before application of the RTV).  
Used it a few years ago- is still sealed; all is well.

**Q: Can I use it to glue shower mirror to tile in my shower**
A: I wouldn't use it for that purpose myself.  I qouls suggest an industrial caulking-type adhesive such as Loctite or Tough As Nails.

**Q: Can you remove it if needed?**
A: Believe the instructions are on the back side of the package.   You can use acetone or paint thinner to remove.Its great stuff. Works well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lasted over a year & counting. Great quality!
*by C***. on October 5, 2025*

Quality is great! I used on a waterpump install on a Nissan Xterra and no leaks or issues after a year! Product is still usable and hasn't went bad in tube.

### ⭐⭐⭐⭐⭐ Fixed the oven door
*by A***. on January 10, 2026*

Bought this because the trim on our gas range oven door kept popping off. So I bought this silicone for the fix. Works great with a nice thick bead around the trim, no more popping off.

### ⭐⭐⭐⭐⭐ Wirks as advertised!
*by A***R on November 1, 2025*

Man this red stuff really works. My house has old steam radiators that were leaking, and not heating correctly; I applied this stuff about four years ago and not a leak since. The his really stands up to very hat temperatures as advertised!

## Frequently Bought Together

- J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-25*