Refractory spray coating is a kind of amorphous refractory material, which is applied to the lining of thermal equipment by spraying construction method.
The main components of refractory spray coating generally include high-alumina bauxite, corundum, mullite, etc. Its particle size distribution will affect the bulk density and construction performance of the spray coating. Usually, there are coarse, medium and fine particles with different particle sizes, so that the aggregates form a dense stacking structure.
(1) Convenient construction
(2) Good adaptability
(3) Excellent fire resistance
(4) Good mechanical properties
Metallurgical industry, building materials industry, chemical industry, power industry
|
Item |
Light paint spraying |
Acid paint spraying |
||
|
RJP-1.2 |
RJP-1.5 |
NSP |
||
|
(AL2O3)/% |
≥35 |
≥40 |
≥35 |
|
|
（CaO）/% |
- |
- |
≤0.5 |
|
|
Body density（g/cm3） |
110°×24H |
≤1.2 |
≤1.5 |
≥1.8 |
|
Cold bending strength /MPa |
110°×24H |
≥1.0 |
≥2.0 |
≥3.0 |
|
- |
- |
2.0 |
||
|
3H |
2.0(1000℃) |
3.0（1000℃） |
4.0（1000℃） |
|
|
Heating line changes /% 110°×24H |
- |
- |
±0.5 |
|
|
Thermal conductivity（350℃）/（W/(m·k)）≤ |
0.3 |
0.4 |
- |
|
|
Recommended parts |
Hot air pipe insulation layer |
Hot blast stove ball top |
||
Highland Refractory classifies Refractory Spraying Material based on raw material composition and functional needs to adapt to diverse high-temperature construction scenarios, including High-Alumina Refractory Spraying Material (Al₂O₃ ≥70%, suitable for ultra-high-temperature zones like steel ladle linings), Silicon Carbide Refractory Spraying Material (SiC ≥60%, ideal for high-wear environments such as cement kiln coolers), and Lightweight Insulating Refractory Spraying Material (bulk density ≤1.0g/cm³, designed for heat preservation layers of boiler outer walls). Each type of Refractory Spraying Material is formulated with optimized powder-aggregate ratios and high-performance binders, ensuring it can be uniformly atomized and sprayed via professional equipment to form dense, integral linings—whether for new furnace construction or emergency repairs—and maintain stability in temperatures ranging from 1200℃ to 1700℃.
Highland’s Refractory Spraying Material stands out in efficient refractory engineering with core strengths: it enables rapid on-site construction, covering large or irregular surfaces (such as entire furnace walls or complex pipe exteriors) in 1/3 the time of traditional brick masonry, significantly shortening project cycles and reducing downtime for industrial equipment; it forms a seamless, gap-free lining after spraying, eliminating heat loss points and slag penetration channels that often damage assembled refractories, thus improving energy efficiency by 10-15%; it also exhibits strong adhesion to existing refractory substrates, allowing for partial repairs without extensive disassembly of worn linings. These advantages make Refractory Spraying Material a cost-effective solution for large-scale, time-sensitive high-temperature protection tasks.
Refractory Spraying Material is widely used across sectors requiring efficient, large-area refractory protection: in the steel industry, it is sprayed onto converter linings and blast furnace bell-less top structures, enduring molten metal erosion and enabling quick repairs during short production breaks; in the cement industry, it lines rotary kiln inner walls and preheater tubes, resisting alkaline clinker wear and reducing maintenance downtime by 20-30%; in the power industry, it serves as the insulating layer for boiler water walls and economizers, minimizing heat dissipation to enhance energy efficiency; in waste incineration plants, it is applied to furnace grate surfaces and flue linings, withstanding corrosive ash and high temperatures to extend equipment service life. Each application leverages Refractory Spraying Material’s unique ability to deliver fast, seamless protection for large or complex structures.
Refractory Spraying Material (Highland) excels in large-area, rapid construction and seamless lining formation, making it perfect for projects like full-scale furnace wall installation or large-section lining repairs where speed and coverage are critical—its sprayable nature allows it to cover extensive, irregular surfaces in hours, creating integral, gap-free protection. Refractory Plastic Material, by contrast, specializes in shaping small, irregular components or filling narrow gaps, with its high plasticity enabling precise on-site molding for detailed structures like furnace corners or pipe wraps. Each product targets distinct needs: Refractory Spraying Material dominates large-scale, efficient lining tasks, while Refractory Plastic Material leads in small-scale, precision-shaped refractory work.
Highland Refractory is your best Refractory Spraying Material manufacturer, backed by 30+ years of refractory expertise—we source high-purity raw materials (high-alumina clinker, fused silicon carbide) and use advanced mixing technologies to ensure consistent particle distribution and sprayability, avoiding clogging of equipment during application; every batch of Refractory Spraying Material undergoes strict quality testing, including checks for spray uniformity, bond strength, and high-temperature line change, meeting ISO 9001/CE standards. With an annual production capacity of 60,000 tons and services for 1,500+ clients across Asia, Africa, Europe, and Australia, we also tailor formulations (e.g., adjusting corrosion resistance for waste incinerators) to match specific industry needs, ensuring reliable performance of our Refractory Spraying Material.
Choosing Highland Refractory as your Refractory Spraying Material manufacturer means accessing tailored support and efficient solutions: we offer customization (adjusting raw material content, spray viscosity, and functional properties to fit your equipment—e.g., high-insulation grades for boilers or high-wear grades for steel converters), fast delivery (3–7 days for standard types in stock, 10–15 days for custom formulations), and bulk discounts (5–10% off orders ≥8 tons). We also provide free samples, detailed technical data sheets (including spraying pressure and temperature parameters), and 24/7 guidance, ensuring your Refractory Spraying Material integrates seamlessly into projects and delivers fast, long-lasting protection for high-temperature structures.
A: Yes, we do offer free samples of our standard Refractory Spraying Material. You just need to cover the shipping cost to your address. For customized Refractory Spraying Material samples with specific features like enhanced wear - resistance or a different chemical composition, there might be a small charge, but it will be refunded if you place a substantial order later.
A: If you order our standard Refractory Spraying Material that's in stock, you can expect delivery within 3 - 7 days. However, for customized Refractory Spraying Material with particular requirements such as a unique spraying viscosity or higher thermal stability, it'll take 10 - 15 days as we'll need extra time for production and quality checks. For large - scale bulk orders, we'll work with you to determine an appropriate delivery schedule.
A: Our Refractory Spraying Material is packaged with great care. It's first sealed in air - tight bags to prevent moisture absorption and contamination. These bags are then placed in sturdy cardboard boxes or wooden crates depending on the quantity. The containers are clearly labeled with handling instructions like "Keep Dry", "Avoid Impact" and all the relevant product details.
A: We accept T/T (Telegraphic Transfer) and PayPal for payments. Just like with our other products, we require full payment before we dispatch the Refractory Spraying Material. We're constantly looking into adding more payment options to make it more convenient for our customers.
A: Absolutely. Every batch of Refractory Spraying Material we produce goes through strict quality control. You'll receive a detailed quality inspection report that includes information about its chemical composition, spraying performance, bond strength, and high - temperature resistance. This will give you a clear understanding of the quality of the product you're getting.
A: We're sorry if you receive damaged Refractory Spraying Material. Please contact our customer service right away and provide photos and a detailed description of the damage. We'll promptly arrange to replace the damaged product with a new, undamaged batch at no extra cost to you.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Refractory cement, also known as aluminate cement, is a fire-resistant hydraulic cementitious material.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Steel fiber wear-resistant castables are widely used in high temperature and wear-resistant environments in many industrial fields such as metallurgy, building materials, and chemicals.
White corundum castable is a high-quality high-temperature refractory material with high-purity alumina powder as the main raw material.
High aluminum castable refers to a refractory castable with Al2O3 content greater than 48%.
Lightweight insulation castable is a refractory with low density and excellent insulation properties.
Corundum mullite castable is a high-quality high-performance refractory material with high thermal conductivity, insulation, good chemical stability and resistance to reducing agents.
Silicon carbide castable is an amorphous refractory material with silicon carbide as the main component.
Chrome corundum castable is a high-performance amorphous refractory material composed of corundum and chromium. It has high melting point, high hardness, high stability and excellent slag resistance and wear resistance.
