--- product_id: 17368210 title: "31319 Black RTV Silicone Sealant and Adhesive - 3 oz." brand: "j-b weld" price: "S$13" currency: SGD in_stock: true reviews_count: 13 category: "J B Weld" url: https://www.desertcart.sg/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz store_origin: SG region: Singapore --- # Fast moisture-cure for quick results Waterproof & weather-resistant seal RTV Silicone tech for durable bonding 31319 Black RTV Silicone Sealant and Adhesive - 3 oz. **Brand:** j-b weld **Price:** S$13 **Availability:** ✅ In Stock ## Summary > 🖤 Seal the deal with J-B Weld’s black magic! ## Quick Answers - **What is this?** 31319 Black RTV Silicone Sealant and Adhesive - 3 oz. by j-b weld - **How much does it cost?** S$13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz) ## 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 - • **Compact Power:** 3 oz. tube packs heavy-duty performance in a sleek, easy-to-use size - • **Trusted by Pros:** Top-rated (#8 in Silicone Adhesives) with 4.5-star reviews from 7,000+ users - • **Rapid Moisture Cure:** Activates on contact with air moisture for fast, reliable sealing - • **Unmatched Versatility:** Seals & bonds uneven surfaces with industrial-grade RTV silicone - • **Weatherproof Confidence:** Creates a waterproof, crack-resistant barrier that stands up to the elements ## Overview J-B Weld 31319 Black RTV Silicone Sealant & Adhesive is a premium, room-temperature vulcanizing silicone designed for sealing and bonding uneven surfaces. It cures quickly upon exposure to moisture, forming a tough, waterproof, and weather-resistant seal ideal for automotive and household applications. Highly rated and trusted, this 3 oz. industrial-grade adhesive delivers professional results in a compact form. ## Description J-B Weld Black Silicone Sealant & Adhesive is a general purpose RTV (Room Temperature Vulcanized) Silicone, designed for sealing and bonding uneven surfaces. 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 and is great for many automotive accessories and household applications. Review: Dependable Sealant and Adhesive: A Review of J-B Weld 31319 Black RTV Silicone Sealant - 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. Review: Great, but if I could change one thing - I’ve purchased numerous times on desertcart and in person and it works great. One piece of criticism is that once you open it, it tends to dry out in the cap, which can be difficult to get out. I do wish there was a way to remove it easier so that way the needle cap can continue to be used but overall there is no odor consistency is great and it dries like a rubber which is exactly what I’m looking for. ## Features - RTV Silicone sealant & adhesive : Is a general purpose RTV (Room Temperature Vulcanized) Silicone, designed for sealing and bonding uneven surfaces. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00ID8F8E4 | | Best Sellers Rank | #2,498 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Silicone Adhesives | | Brand | J-B Weld | | Brand Name | J-B Weld | | Color | Black | | Compatible Material | Rubber | | Customer Reviews | 4.5 out of 5 stars 7,094 Reviews | | Global Trade Identification Number | 00043425313195 | | Included Components | JBWeld 31319 | | Item Dimensions | 9 x 5 x 2 inches | | Item Form | Liquid | | Item Type Name | BONDING_ADHESIVES | | Item Weight | 109 g | | Item dimensions L x W x H | 9 x 5 x 2 inches | | Manufacturer | JBWeld | | Material | Plastic | | Material Type | Plastic | | Model | 31319 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 31319 | | Style | Industrial | | Style Name | Industrial | | Surface Recommendation | Tile | | UPC | 043425313195 | | Unit Count | 3 Ounce | | Warranty Description | Manufacturer Warranty | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** J-B Weld - **Item Weight:** 109 g - **Item dimensions L x W x H:** 9 x 5 x 2 inches - **Material:** Plastic - **Style:** Industrial ## Images ![31319 Black RTV Silicone Sealant and Adhesive - 3 oz. - Image 1](https://m.media-amazon.com/images/I/71uM3uQRTPL.jpg) ## Available Options This product comes in different **Color, Size** options. ## 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 ### ⭐⭐⭐⭐⭐ Dependable Sealant and Adhesive: A Review of J-B Weld 31319 Black RTV Silicone Sealant *by N***N on February 29, 2024* 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. ### ⭐⭐⭐⭐⭐ Great, but if I could change one thing *by B***X on June 12, 2026* I’ve purchased numerous times on Amazon and in person and it works great. One piece of criticism is that once you open it, it tends to dry out in the cap, which can be difficult to get out. I do wish there was a way to remove it easier so that way the needle cap can continue to be used but overall there is no odor consistency is great and it dries like a rubber which is exactly what I’m looking for. ### ⭐⭐⭐⭐⭐ Works well. *by K***. on August 28, 2026* It is black. It vulcanizes at room temperature. The stock seems good, not too old. ## Frequently Bought Together - J-B Weld 31319 Black RTV Silicone Sealant and Adhesive - 3 oz. - Permatex 81158 Black Silicone Adhesive Sealant, 3 oz. Tube, Pack of 1 - Permatex 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. --- ## 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.sg/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz](https://www.desertcart.sg/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-04*