---
product_id: 286747770
title: "J-B Weld Black RTV Sealant - 3 oz. 3 Ounce Blue 31316"
brand: "j-b weld"
price: "₨192"
currency: SCR
in_stock: true
reviews_count: 13
category: "J B Weld"
url: https://www.desertcart.sc/products/286747770-j-b-weld-black-rtv-sealant-3-oz-3-ounce
store_origin: SC
region: Seychelles
---

# Cures in ~1 hour Waterproof & weather-resistant Strong bonding power J-B Weld Black RTV Sealant - 3 oz. 3 Ounce Blue 31316

**Brand:** j-b weld
**Price:** ₨192
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it like a pro — don’t let your projects settle for less!

## Quick Answers

- **What is this?** J-B Weld Black RTV Sealant - 3 oz. 3 Ounce Blue 31316 by j-b weld
- **How much does it cost?** ₨192 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/286747770-j-b-weld-black-rtv-sealant-3-oz-3-ounce)

## 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

- • **Waterproof Seal:** Creates a durable, weatherproof barrier that won’t crack or shrink.
- • **Easy, Reliable Use:** Smooth application with flexible nozzle options for precision or broad coverage.
- • **Pro-Grade Strength:** Trusted by builders and mechanics for tough, lasting bonds.
- • **Versatile Application:** Bonds uneven surfaces across automotive, household, and industrial projects.
- • **Long-Lasting Durability:** Holds heavy loads and withstands harsh environments without fail.

## Overview

J-B Weld Black RTV Sealant is a professional-grade, room temperature vulcanizing silicone adhesive and sealant. It forms a tough, waterproof, and weather-resistant bond on uneven surfaces, curing in about an hour. Highly rated and trusted by builders and mechanics, this 3 oz tube is perfect for automotive repairs, household fixes, and industrial applications where durability and reliability are non-negotiable.

## Description

Buy J-B Weld Black RTV Sealant - 3 oz. 3 Ounce Blue 31316 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: perfect size and quality - perfect size and quality
Review: Works great - At first i used it with the nozzle but its hard to squish it out so I had to cut it from the second circle to make the hole bigger which worked, please do not force it through the smallest hole since Ive seen some comments complaining that it bursted open and made a mess. I would recommend you remove the nozzle when you are almost done and clean it properly by passing tissue through it, using some of that product leftover. While this might be messy and a bit wasteful it will prevent both the tube and the nozzle from drying up since the nozzle doesnt have a seal. Now i use it without without nozzle and it still works nice for areas that dont require precise application or tight areas and its an amazing adhesive, it says it dries in 1h but id recommend leaving it at least half a day, do the work at night and leave it overnight maybe. Ive used it to glue some shelfs in the kitchen and put spices and sauces which can be quite heavy, left milk and other heavy items to test the durability and its been 3 weeks holding all that weight, also used the glue to seal corners in the bathroom and its completely waterproof once dry. The next time u open the tube there will be a dried up crust on the top, if u squeeze a bit it should come out, i didnt throw it away and actually placed it back once im done using the product and this actually works as a second seal that prevents another dry crust. Overall amazing product.

## Features

- RTV SILICONE SEALANT & ADHESIVE: Is a general purpose RTV (Room Temperature Vulcanized) Silicone, designed for sealing and bonding uneven surfaces
- WHAT THE PROFESSIONALS USE: Builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments. Choose the product pros trust for your project
- EASY TO USE: Upon curing, the silicone forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is great for many automotive accessories and household uses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LIRG8VY |
| Best Sellers Rank | #12 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Fillers, Adhesives & Sealants |
| Brand | J-B Weld |
| Customer Reviews | 4.3 4.3 out of 5 stars (15,275) |
| Date First Available | 16 September 2014 |
| Item Weight | 90 g |
| Item model number | 31316 |
| Manufacturer | JBWeld |
| Manufacturer Part Number | 31316 |
| Model | 31316 |
| Product Dimensions | 5 x 4 x 16 cm; 90 g |
| Special Features | Strong, Waterproof |

## Product Details

- **Brand:** J-B Weld
- **Item dimensions L x W x H:** 50 x 40 x 160 millimeters
- **Item weight:** 0.09 Kilograms
- **Material:** Silicone
- **Style:** Classic

## Images

![J-B Weld Black RTV Sealant - 3 oz. 3 Ounce Blue 31316 - Image 1](https://m.media-amazon.com/images/I/81mYGbFpgjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ perfect size and quality
*by G***. on 13 November 2025*

perfect size and quality

### ⭐⭐⭐⭐⭐ Works great
*by A***I on 4 February 2025*

At first i used it with the nozzle but its hard to squish it out so I had to cut it from the second circle to make the hole bigger which worked, please do not force it through the smallest hole since Ive seen some comments complaining that it bursted open and made a mess. I would recommend you remove the nozzle when you are almost done and clean it properly by passing tissue through it, using some of that product leftover. While this might be messy and a bit wasteful it will prevent both the tube and the nozzle from drying up since the nozzle doesnt have a seal. Now i use it without without nozzle and it still works nice for areas that dont require precise application or tight areas and its an amazing adhesive, it says it dries in 1h but id recommend leaving it at least half a day, do the work at night and leave it overnight maybe. Ive used it to glue some shelfs in the kitchen and put spices and sauces which can be quite heavy, left milk and other heavy items to test the durability and its been 3 weeks holding all that weight, also used the glue to seal corners in the bathroom and its completely waterproof once dry. The next time u open the tube there will be a dried up crust on the top, if u squeeze a bit it should come out, i didnt throw it away and actually placed it back once im done using the product and this actually works as a second seal that prevents another dry crust. Overall amazing product.

### ⭐⭐⭐⭐⭐ Good seal
*by N***I on 31 January 2025*

Amazing

## Frequently Bought Together

- J-B Weld 31316 RTV Silicone Gasket Maker and Sealant - 3 oz. - Blue
- Permatex 85080 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Flex And Oil Resistant Applications 9.5 oz
- Permatex 81630 Ultra Red High Temperature Gasket Maker, 3 oz

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**Shop now:** [https://www.desertcart.sc/products/286747770-j-b-weld-black-rtv-sealant-3-oz-3-ounce](https://www.desertcart.sc/products/286747770-j-b-weld-black-rtv-sealant-3-oz-3-ounce)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-09*