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Nano high-temperature-resistant thermal insulation material
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Product Description
Technological Advantages
Technological Innovation: Based on an aqueous inorganic high‑temperature‑resistant bonding system, a multi‑scale synergistic thermal insulation architecture is constructed using various nano‑functional materials, achieving the concurrent optimization of low thermal conductivity and high‑temperature structural stability. Furthermore, by designing coatings with matched thermal expansion coefficients and incorporating stress‑relief mechanisms, the interfacial adhesion and durability of the coating on diverse substrates—such as metals and refractory materials—are enhanced under high‑temperature service conditions.
Key technologies: Construction of water-based inorganic high-temperature-resistant bonding systems, synergistic regulation technology for composite functional fillers, and interface‑bonding and thermal‑expansion‑matching control technologies.
Product Description
1. High-temperature resistance, low thermal conductivity, and significant energy-saving performance.
The product features low thermal conductivity and excellent high-temperature resistance, enabling long-term stable operation in environments ranging from 200 to 1450°C. It effectively reduces surface heat loss from equipment, lowers energy consumption, and improves working conditions at elevated temperatures. By incorporating infrared‑blocking additives, it outperforms conventional insulation materials in suppressing radiative heat transfer at high temperatures, mitigating the rate of thermal conductivity increase under extreme heat, and delivering more consistent thermal insulation performance.
2. Supports spray and brush application, particularly suitable for equipment with complex shapes.
Compared with traditional insulation materials such as boards and fiber felts, coatings can be applied directly via spraying, brushing, or scraping, enabling tight adhesion to complex, irregular components like bends, valves, flues, furnace doors, and sealing walls, thereby eliminating the installation difficulties and inadequate coverage often encountered with conventional insulation materials.
3. The substrate exhibits excellent compatibility and can be applied at elevated temperatures.
The product is suitable for a wide range of substrates, including concrete, metals, and refractory materials, and can be applied directly to the hot surfaces of equipment operating at temperatures up to 300°C, thereby minimizing downtime and enhancing construction efficiency. It is particularly well suited for online maintenance and energy‑saving retrofits in continuous‑process units such as coking and metallurgical plants. Moreover, the coating exhibits excellent thermal shock resistance; even after water quenching at 400°C, the coating on metallic substrates remains intact, without cracking or delamination.
4. Seamless, airtight sealing to minimize thermal bridges and air leakage.
The coating forms a continuous, dense thermal insulation layer that effectively mitigates gaps and thermal bridges in conventional insulation systems. It also exhibits excellent sealing performance, helping to address issues such as smoke leakage, air infiltration, and flame ejection in high‑temperature equipment or furnace bodies, thereby reducing the system’s air leakage coefficient and enhancing thermal efficiency.
5. Corrosion-resistant and durable, reducing the risk of corrosion beneath the insulation layer.
The product boasts high strength, low water absorption, and excellent corrosion resistance, effectively addressing the common issues of traditional fibrous insulation materials—such as water uptake, dimensional distortion, and the onset of “corrosion under insulation (CUI)” —thereby extending the service life of equipment and insulation systems and achieving integrated corrosion protection and thermal insulation.
6. Adjustable structure enabling multifunctional integration
Coating thickness and structure can be flexibly tailored to suit operating conditions, and when combined with various functional topcoats, they can deliver multiple functions—including waterproofing, corrosion protection, reflective thermal insulation, radiative cooling, and decorative finishes—thus meeting the comprehensive needs of diverse industrial applications and providing users with more systematic energy‑saving solutions.
Schematic diagram of the thermal insulation mechanism
Typical Properties of Nano‑High‑Temperature‑Resistant Thermal Insulation Materials
| Project | Indicator |
| Material System and Morphology | Water-based, single-component, white paste |
| Maximum operating temperature | 200~1450℃ |
| Thermal conductivity (at room temperature) | 0.035~0.070 W/(m·K) |
| Typical Density (Dry Film) | 200~400kg/m 3 |
| Compressive strength | 0.8~2.5 MPa |
| Coating thickness | 3~8 mm |
| Construction method | Spraying, brushing, or roller coating |
| Construction temperature | 5~300℃ |
| Applicable substrates | Various metals, refractory materials, and more |
Project Cases
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Basement ceiling slab |
Exhaust gas opener/closer |
Side wall of the flue duct |
Wall sealing |
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Heat-recovery coke oven door |
Top of the furnace |
Vertical coke oven door |
Combustion chamber burner |
Top slab of the furnace bottom foundation |
Air distribution duct |
Rising pipe |
Regenerator wall sealing |
High-temperature-resistant gate valve
Technological Advantages
Technological Innovation: The product centers on innovative design featuring a composite structure, exceptional resistance to thermal shock, and long service life at low cost, thereby thoroughly addressing industry‑wide pain points such as cracking, deformation, and short service life that have long plagued conventional heat‑resistant cast steel gate plates.
Key technologies: Three core technologies: “zone‑differentiated ceramic materials, a split‑type detachable structure, and thermal‑shock‑resistant reinforcement.”
Product Description
Heat‑resistant materials produced using nano‑cladding technology are lightweight and easy to maintain. They effectively address issues such as deformation under high‑temperature conditions and inadequate corrosion resistance, upgrading what was once a single‑use maintenance component into a high‑performance product that can be repeatedly recycled. This not only reduces maintenance costs and extends service life but also resolves common problems like detachment and fracture in conventional gate valves, thereby significantly easing operational burdens, boosting production efficiency, and better aligning with the industrial trend toward unmanned, unattended operations.
By employing nano‑clad heat‑resistant materials that are lightweight and easy to inspect, this solution addresses the issues of deformation and inadequate corrosion resistance experienced by gate valves subjected to erosive high‑temperature flue gases containing ash under conditions of 1350–1450°C and negative pressures ranging from −100 to −1000 Pa. This technology upgrades conventional single‑use maintenance components into high‑performance gate valves capable of multiple cycles of reuse, thereby reducing maintenance costs and extending service life. It also eliminates common problems such as detachment and fracture, alleviates operational burdens, enhances efficiency, and better aligns with the emerging trend toward unmanned, remote monitoring.
Project Cases
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