--- product_id: 17368210 title: "31319 Black RTV Silicone Sealant and Adhesive - 3 oz." brand: "j-b weld" price: "$17.18" currency: USD in_stock: true reviews_count: 13 category: "J B Weld" url: https://www.desertcart.us/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz store_origin: US region: United States of America --- # Waterproof & weather-resistant Sleek black finish 3 oz precision applicator 31319 Black RTV Silicone Sealant and Adhesive - 3 oz. **Brand:** j-b weld **Price:** $17.18 **Availability:** ✅ In Stock ## Summary > 🖤 Seal it like a pro—durability meets sleek design! ## Quick Answers - **What is this?** 31319 Black RTV Silicone Sealant and Adhesive - 3 oz. by j-b weld - **How much does it cost?** $17.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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 - • **Versatile Bonding Power:** Perfect for uneven surfaces, automotive parts, and household repairs. - • **Ultimate Weatherproof Seal:** Forms a durable, waterproof bond that resists cracking and shrinking. - • **Professional Matte Black Finish:** Blends seamlessly with dark surfaces for a clean, polished look. - • **Precision Application, Zero Waste:** Nozzle design ensures smooth, mess-free sealing every time. - • **Room Temperature Vulcanizing Tech:** Cures on exposure to air moisture, no heat needed—DIY friendly. ## Overview J-B Weld 31319 Black RTV Silicone Sealant & Adhesive is a 3 oz industrial-grade, waterproof silicone designed for sealing and bonding uneven surfaces. It cures at room temperature by reacting with air moisture to form a tough, flexible, and weather-resistant seal that won’t shrink or crack. Ideal for automotive, household, and general-purpose repairs, its black color offers a professional finish that blends with dark materials. Trusted by thousands for precision application and long-lasting durability. ## 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. ## 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 | #1,666 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 6,938 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 Grams | | 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 | | Part Number | 31319 | | Style | Industrial | | Style Name | Industrial | | Surface Recommendation | Tile | | UPC | 043425313195 | | Unit Count | 3.0 Ounce | | Warranty Description | Manufacturer Warranty | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** J-B Weld - **Item Weight:** 109 Grams - **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) ![31319 Black RTV Silicone Sealant and Adhesive - 3 oz. - Image 2](https://m.media-amazon.com/images/I/81f1bl8kYUL.jpg) ![31319 Black RTV Silicone Sealant and Adhesive - 3 oz. - Image 3](https://m.media-amazon.com/images/I/61IVNHJvKIL.jpg) ![31319 Black RTV Silicone Sealant and Adhesive - 3 oz. - Image 4](https://m.media-amazon.com/images/I/61rLz2V+PxL.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 ### ⭐⭐⭐⭐⭐ Review *by P***D on May 3, 2026* ### ⭐⭐⭐⭐⭐ Review *by N***N on February 29, 2024* ### ⭐⭐⭐⭐⭐ Review *by S***E on March 9, 2026* ## 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.us/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz](https://www.desertcart.us/products/17368210-31319-black-rtv-silicone-sealant-and-adhesive-3-oz) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-18*