--- product_id: 458493671 title: "- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack" price: "6779 som" currency: KGS in_stock: true reviews_count: 8 url: https://www.desertcart.kg/products/458493671-ht300-high-temp-silicone-gasket-maker-2x10-1-fl-oz store_origin: KG region: Kyrgyzstan --- # Waterproof & chemical resistant Durable, crack & shrink resistant Heat resistant up to 600Β°F - HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack **Price:** 6779 som **Availability:** βœ… In Stock ## Summary > πŸ”₯ Seal the deal with heat-defying power! ## Quick Answers - **What is this?** - HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - **How much does it cost?** 6779 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/458493671-ht300-high-temp-silicone-gasket-maker-2x10-1-fl-oz) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dual-Pack Convenience:** Two 10.1 fl.oz. tubes mean you’re always ready for your next project or emergency fix. - β€’ **Unmatched Heat Endurance:** Withstands extreme temps up to 600Β°F, perfect for high-performance automotive needs. - β€’ **Waterproof & Chemical Tough:** Resists weather, chemicals, and aging to keep your seals intact under pressure. - β€’ **Flexible & Long-Lasting Seal:** Remains pliable after curingβ€”no cracking or brittleness, ensuring a reliable gasket every time. - β€’ **Versatile Industrial Strength:** Ideal for valves, pumps, motors, stoves, and chimneysβ€”engineered for diverse high-temp applications. ## Overview Akfix HT300 is a professional-grade red RTV silicone gasket maker designed for high-temperature applications up to 600Β°F. This flexible, waterproof sealant resists cracking, shrinking, and chemical damage, making it ideal for automotive valve covers and industrial sealing tasks. Sold in a convenient 2-pack, it offers durable, long-lasting performance trusted by DIYers and pros alike. ## Description Product description Review: Awsome price. Great product - Great price for high temp r.t.v. works great Review: I needed to think it through before I opened it up. - This was the first time I used this type of dispenser, and I screwed up opening the first one. So I'm really glad I bought a 2 pack. 😁 the gasket worked great on my Jeep. ## Features - π—›π—œπ—šπ—› π—›π—˜π—”π—§ π—₯π—˜π—¦π—œπ—¦π—§π—”π—‘π—–π—˜ Akfix HT300 is a very powerful, long-lasting adhesive that can endure exposure to high temperatures and is heat resistant silicone. Excellent heat resistance after curing up to 482Β°F permanently and up to 572Β°F temporarily. - π—₯𝗧𝗩 π—šπ—”π—¦π—žπ—˜π—§ π— π—”π—žπ—˜π—₯ With RTV Silicone Gasket Maker, you can count on waterproof performance in most conditions. This silicone caulk is virtually unaffected by chemical deterioration, extreme weather, temperature or aging. - 𝗦𝗧π—₯π—’π—‘π—š 𝗗𝗨π—₯π—”π—•π—Ÿπ—˜ This gasket sealant resists mechanical enforcement after curing. Will not crack, shrink or become brittle. - π—₯π—˜π— π—”π—œπ—‘π—¦ π—™π—Ÿπ—˜π—«π—œπ—•π—Ÿπ—˜ High temperature silicone is a flexible sealer and long-lasting adhesive that dries slowly, making it a preferred option for both DIYers and experts. - 𝗩𝗔π—₯π—œπ—’π—¨π—¦ π—”π—£π—£π—Ÿπ—œπ—–π—”π—§π—œπ—’π—‘ 𝗔π—₯π—˜π—”π—¦ Our 100% silicone mastic joint sealant is a gap filler used on waterproof sealing and bonding in stoves, chimneys, gaskets in pumps, motors, automobiles and where parts must perform at high temperatures and heat. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 264 Reviews | ## Product Details - **Material:** Silicone - **Brand:** Akfix - **Style:** Industrial - **Item Weight:** 10.5 Ounces - **Item dimensions L x W x H:** 3.92 x 3.92 x 9.05 inches ## Images ![- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Image 1](https://m.media-amazon.com/images/I/61DzXJdRPbL.jpg) ![- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Image 2](https://m.media-amazon.com/images/I/61oWLxMUqrL.jpg) ![- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Image 3](https://m.media-amazon.com/images/I/61CInmHdYML.jpg) ![- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Image 4](https://m.media-amazon.com/images/I/61zMU1VfDHL.jpg) ![- HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Image 5](https://m.media-amazon.com/images/I/61DIYsN-NKL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awsome price. Great product *by J***Y on November 6, 2025* Great price for high temp r.t.v. works great ### ⭐⭐⭐⭐⭐ I needed to think it through before I opened it up. *by K***N on October 11, 2025* This was the first time I used this type of dispenser, and I screwed up opening the first one. So I'm really glad I bought a 2 pack. 😁 the gasket worked great on my Jeep. ### ⭐⭐⭐⭐⭐ Favorite gasket maker *by G***N on December 11, 2024* I love this stuff.... I use it on just about everything. It does exactly what they say it does and its cheap. Ive had problems with some of their competitors products in the past but never with this stuff..... the tubes also come with a reusable cap which is really nice..... the longest Ive kept a capped opened tube of this stuff laying around was about 6 months and it was still in the same usable condition as the day I opened it. I recommend some disposable gloves and some caution while using it though because that red wants to get on everything and it sticks good as long as the surface isnt wet ## Frequently Bought Together - Akfix HT300 High Temp Silicone Gasket Maker (2x10.1 fl.oz.) - Red RTV Gasket Sealer, Flexible High Heat Silicone Sealant Up to 600F, Valve Cover Gasket Sealant for Automotive | 2 Pack - Bates- Caulking Silicone Gun, 10:1 Thrust Ratio, Hand Caulking Guns, No Drip - Permatex 24105 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Flex And Oil Resistant Applications 13 oz --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kg/products/458493671-ht300-high-temp-silicone-gasket-maker-2x10-1-fl-oz](https://www.desertcart.kg/products/458493671-ht300-high-temp-silicone-gasket-maker-2x10-1-fl-oz) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-05-28*