--- product_id: 516157917 title: "Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer" brand: "refratech" price: "€ 79.40" currency: EUR in_stock: true reviews_count: 7 category: "Refratech" url: https://www.desertcart.at/products/516157917-rigidizer-for-ceramic-fiber-coating-2300f-rated-fireproof-insulation-surface store_origin: AT region: Austria --- # low viscosity for easy application 2300°F heat resistance abrasion & erosion protection Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer **Brand:** refratech **Price:** € 79.40 **Availability:** ✅ In Stock ## Summary > 🔥 Fortify your fireproofing with next-level ceramic fiber protection! ## Quick Answers - **What is this?** Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer by refratech - **How much does it cost?** € 79.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/516157917-rigidizer-for-ceramic-fiber-coating-2300f-rated-fireproof-insulation-surface) ## Best For - refratech enthusiasts ## Why This Product - Trusted refratech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Health-Smart Coating:** Locks down particles to reduce airborne irritants, protecting your workspace and wellbeing. - • **Durable Surface Armor:** Transforms fragile ceramic fiber into a tough, abrasion-resistant barrier that lasts. - • **Effortless Application:** Low-viscosity formula lets you brush, spray, or dip with zero hassle and fast curing. - • **Unmatched Heat Shielding:** Withstands scorching temperatures up to 2300°F, keeping your insulation performance elite. - • **Boosts Thermal Efficiency:** Reflects more heat to maximize insulation effectiveness and energy savings. ## Overview Rigidizer is a high-performance colloidal silica coating designed to enhance ceramic fiber insulation by providing heat resistance up to 2300°F, superior abrasion and erosion protection, and improved thermal efficiency. Its low-viscosity formula ensures easy application by brushing, spraying, or dipping, curing fully in 24 hours. Ideal for industrial uses like furnaces, kilns, and forges, it also reduces harmful airborne particles, extending insulation life and safety. ## Description Rigidizer is a Colloidal Silica Compound, that can be used as a cohesive agent for various fireproof materials which are used for insulation across various industries. This is widely applied for treating the surface of ceramic fiber materials like boards, blankets, vacuum-formed components, and modules for increasing the hardness and erosion resistance of the surface. We also deal in a wide range of quality ceramic fiber products like Ceramic Fiber Blanket, Board, Bricks, Paper, Ceramic Wool, and plenty more. Product Value Good Mechanical Strength: Rigidizer is used for surface treatment of the ceramic fiber materials to increase its resistance to abrasion, thermal shock resistance, and volume stability providing durability and good mechanical strength to the surface. High Insulating Value: This coating can withstand temperatures up to 2300F providing high insulating value to ceramic fiber materials and extending their life by increasing erosion resistance of surfaces that are subject to high-velocity gases. Enhance Efficiency: Ceramic fiber materials coated with rigidizer reflects more heat, thus improving their thermal efficiency and giving you better results. Safety: This rigidizer when applied prevents the particle to fall off from the surface and also reduces the spread of harmful airborne particles that impact your health. Applications - Surface Coating of Ceramic Products exposed to high-velocity gases & flame impingement. - Cohesive agent for the ceramic blankets, boards, paper, and for making other composites too. - For the surface treatment of vacuum-formed shapes to increase firmness and solidity of its surface. - Mix with water 1:1 makes 32 Oz. - This is enough to rigidized 1 piece of 24”x24” ceramic fiber blanket Review: Easy to use, goes a long way - Easy to mix. I’d certainly recommend using a hand spray bottle to apply it rather than a brush. It seems to rigidise my thermal kiln blanket well and is economical. Review: Handles all the heat thrown at it - Did what it said on the Tin. Easy to apply. ## Features - HIGH TEMPERATURE INSULATION - This coating increases the insulation value of ceramic fiber materials and can with stand temperature up to 2300F - HARD SURFACE FINISH - Rigidizer makes the surface finish after application with increase resistance to mechanical abrasion and helps flexible ceramic fiber material from being too flaky - EROSION RESISTANCE - Rigidizer increases surface erosion resistance for surfaces exposed to high velocity gases - EASY TO APPLY - Because of it low viscosity its application on ceramic fiber materials becomes very simple. It can be applied with brushing, spraying or dipping. It takes around 24 hours for curing post application. (Don't keep the lid open when not in use for better preservation as it starts freezing when it comes in contact with air) - WIDE APPLICATION - This rigidizer is extensivly used in varied fields for surface coating of ceramic fiber insulation used in Forges, Foundry, Furnace, Stove, Oven, Raku, Kiln and many more ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B84XT8VN | | Best Sellers Rank | 390,121 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Coating Insulation | | Brand | REFRATECH | | Colour | Clear / Transparent | | Compatible Material | Ceramic | | Container Type | Bottle | | Customer Reviews | 4.5 out of 5 stars 227 Reviews | | Full Cure Time | 24 Hours | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Volume | 16 Fluid Ounces | | Item form | Liquid | | Manufacturer | Spectra Overseas | | Manufacturer Part Number | RCB-12 | | Material | ceramic fiber, colloidal silica | | Model Number | RCB-12 | | Other Special Features of the Product | Heat Resistant | | Special feature | Heat Resistant | | Specific Uses For Product | Surface Coating of Ceramic Products exposed to high-velocity gases & flame impingement, For the surface treatment of vacuum-formed shapes to increase firmness and solidity of its surface | | Specific uses for product | Surface Coating of Ceramic Products exposed to high-velocity gases & flame impingement, For the surface treatment of vacuum-formed shapes to increase firmness and solidity of its surface Specific uses for product Surface Coating of Ceramic Products exposed to high-velocity gases & flame impingement, For the surface treatment of vacuum-formed shapes to increase firmness and solidity of its surface See more | | Unit Count | 473.1765 millilitre | | Viscosity Level | Low | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** REFRATECH - **Item form:** Liquid - **Material:** ceramic fiber, colloidal silica - **Special feature:** Heat Resistant - **Specific uses for product:** High Temperature Ceramic Coating, Cohesive for Ceramic Materials, Vacuum Surface Treatment ## Images ![Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer - Image 1](https://m.media-amazon.com/images/I/71hLRDM3rpL.jpg) ## Questions & Answers **Q: Will this adhere to steel?** A: No **Q: Can this be sprayed on the inside of a woodstove in place of fire brick?** A: Yes **Q: How much will this 16Oz bottle coat?** A: I had it for a whole 24"x 156" roll. Probably needed two bottles for that. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to use, goes a long way *by L***D on 26 June 2025* Easy to mix. I’d certainly recommend using a hand spray bottle to apply it rather than a brush. It seems to rigidise my thermal kiln blanket well and is economical. ### ⭐⭐⭐⭐⭐ Handles all the heat thrown at it *by T***R on 18 July 2025* Did what it said on the Tin. Easy to apply. ### ⭐⭐⭐⭐⭐ Great product!! *by M***. on 10 July 2026* Works great! ## Frequently Bought Together - REFRATECH Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer - Mr Volcano Refractory Satanite 4.5 Pounds for Ceramic Blanket Lining 3200 Degree Mortar --- ## 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.at/products/516157917-rigidizer-for-ceramic-fiber-coating-2300f-rated-fireproof-insulation-surface](https://www.desertcart.at/products/516157917-rigidizer-for-ceramic-fiber-coating-2300f-rated-fireproof-insulation-surface) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-29*