--- product_id: 50081865 title: "32329 Ultimate Black RTV Silicone Gasket Maker and Sealant, 3. Fluid_Ounces" brand: "j-b weld" price: "€ 25.69" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/50081865-32329-ultimate-black-rtv-silicone-gasket-maker-and-sealant-3 store_origin: HR region: Croatia --- # Waterproof, no shrink or crack 500°F intermittent heat resistance Maximum petroleum & oil resistance 32329 Ultimate Black RTV Silicone Gasket Maker and Sealant, 3. Fluid_Ounces **Brand:** j-b weld **Price:** € 25.69 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal with the ultimate black gasket maker—because your engine deserves the best! ## Quick Answers - **What is this?** 32329 Ultimate Black RTV Silicone Gasket Maker and Sealant, 3. Fluid_Ounces by j-b weld - **How much does it cost?** € 25.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/50081865-32329-ultimate-black-rtv-silicone-gasket-maker-and-sealant-3) ## 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 - • **Pro-Grade Heat Shield:** Withstands extreme temps up to 500°F intermittent for relentless performance. - • **DIY Confidence Booster:** Easy to apply and cures fast, empowering you to fix it right the first time. - • **Trusted by the Experts:** Preferred by mechanics and builders for reliable, long-lasting repairs. - • **Flawless Waterproof Seal:** Creates a tough, crack-proof gasket that stands up to moisture and weather. - • **Oil & Petroleum Fortress:** Engineered to resist harsh oils and petroleum, perfect for automotive pros. ## Overview J-B Weld 32329 Ultimate Black RTV Silicone Gasket Maker & Sealant is a professional-grade, room temperature vulcanizing silicone designed for mechanical assemblies requiring superior oil and petroleum resistance. It cures to form a durable, waterproof, and heat-resistant gasket that won’t shrink or crack, making it ideal for automotive and industrial applications up to 500°F intermittent temperature. ## Description J-B Weld Ultimate Black Gasket Maker & Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material designed for use in mechanical assemblies where maximum petroleum and oil resistance is required. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof, gasket and seal on most surfaces. It will not shrink or crack, resists oil and petroleum products, resists weathering, is sensor safe, has good temperature resistance up to 500 F intermittent 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 - Causes serious eye irritation. - Causes skin irritation. - May cause an allergic skin reaction. - May cause cancer. - ULTIMATE BLACK GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material made for use in mechanical assemblies where maximum petroleum & oil resistance is required - 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 cure, silicone forms a tough, waterproof, gasket & seal on most surfaces. It will not shrink or crack, resists oil & petroleum & has temperature resistance up to 500 F intermittent - VERSATILE AND DEPENDABLE: Perfect for timing gear covers, oil pans, valve covers, transmission pans, metal, rubber, and many other automotive and mechanical uses - 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 | B00LIRGB84 | | Best Sellers Rank | 2,502 in DIY & Tools ( See Top 100 in DIY & Tools ) 59 in Sealers | | Brand | J-B Weld | | Colour | Ultimate Black | | Compatible Material | Metal, Rubber | | Customer Reviews | 4.6 out of 5 stars 6,979 Reviews | | Global Trade Identification Number | 00043425323293 | | Included Components | 1 Tube | | Item Dimensions | 50 x 40 x 160 millimetres | | Item Form | Liquid | | Item Type Name | Black RTV Silicone Gasket Maker and Sealant | | Item Weight | 0.09 Kilograms | | Item dimensions L x W x H | 50 x 40 x 160 millimetres | | Item weight | 0.09 Kilograms | | Manufacturer | JBWeld | | Manufacturer Part Number | 32329 | | Material | Silicone | | Model Number | 32329 | | Number of Items | 1 | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Metal, Engine, Exhaust, Car Body | | UPC | 043425323293 043425700230 | | Unit Count | 1.0 count | | 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:** 0.09 Kilograms - **Material:** Silicone - **Style:** Compact ## Images ![32329 Ultimate Black RTV Silicone Gasket Maker and Sealant, 3. Fluid_Ounces - Image 1](https://m.media-amazon.com/images/I/81FZhbpIe5L.jpg) ## Available Options This product comes in different **Color, Size** options. ## 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 32329 Ultimate Black RTV Silicone Gasket Maker and Sealant - 3 oz. - Black - J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 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.hr/products/50081865-32329-ultimate-black-rtv-silicone-gasket-maker-and-sealant-3](https://www.desertcart.hr/products/50081865-32329-ultimate-black-rtv-silicone-gasket-maker-and-sealant-3) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-23*