What is Flexible Microporous Board?
Firebird’s Flexible Microporous Board offers a versatile solution by merging the benefits of soft felt and blankets into one efficient product. Its flexibility and ease of installation make it a high-performance option suitable for a wide range of industrial applications, providing superior thermal insulation.
Crafted from advanced microporous materials, this lightweight insulation is perfect for wrapping around irregular shapes and filling unconventional spaces. Microporous Flex can be easily customized to fit various sizes and forms, making it an ideal choice for diverse insulation needs where adaptability is key.
Product By Temperature
Available in two types: MIP-950 Flex and MIP-1050 Flex, both with high-performance thermal insulation and excellent flexibility.
MIP-950 Flex is a flexible microporous board for temperatures up to 950°C, made from SiO₂ and SiC. It provides excellent insulation (0.023 W/m·K at 200°C) …
MIP-1050 Flex is designed for high temperatures up to 1100°C, using SiO₂ and ZrSiO. It delivers superior thermal performance (0.020 W/m·K at 200°C) with minimal shrinkage…
Forming Method: Machine pressing + industrial sewing
Firebird’s Flexible Microporous Boards are made using machine pressing and industrial sewing to ensure durability and flexibility.
Application of Flexible Microporous Board
Our flexible microporous boards are highly efficient insulation solutions designed for applications where exceptional thermal performance is required. With extremely low thermal conductivity, they are ideal for reducing heat loss and CO2 emissions, especially in confined spaces.
These custom-made panels are the perfect choice for insulating pipes of all sizes, making them suitable for a wide range of industries such as:
- Backup insulation in industrial furnaces, aluminum industry (launders, holding furnaces)
- Glass and ceramics industries
- Heavy industries
- Petrochemical sector (cracking furnaces, hydrogen reformers)
- Hot pipe support and exhaust system insulation
- Passive fire protection (PFP)
Whether for small-diameter pipes or large-scale industrial equipment, our flexible microporous boards provide superior insulation, ensuring efficient energy use and reducing environmental impact.


Advantages of Flexible Microporous Board
Our flexible microporous boards offer unmatched thermal performance, combining flexibility, durability, and energy efficiency. With an ultra-low thermal conductivity, they effectively minimize heat loss even in extreme temperature environments. Their lightweight design makes them easy to handle and install, particularly in applications with complex or irregular shapes.
Key benefits include:
- Exceptional Thermal Insulation: Ultra-low thermal conductivity for high-temperature applications.
- Versatility: Ideal for curved or complex surfaces with flexible, customizable designs.
- Durability: Strong resistance to mechanical wear and tear, extending product lifespan.
- Easy Installation: Lightweight and easy to cut, perfect for fast and efficient installation.
- Energy Savings: Helps significantly reduce energy consumption and heat loss, enhancing overall operational efficiency.
What makes Flex Microporous Board Thermal Conductivity Lower Than Still Air?
Microporous boards leverage their unique nanoporous structure and the combined effects of specialized additives to significantly reduce heat transfer through conduction, convection, and radiation across a wide temperature range. This advanced performance surpasses that of traditional materials such as mineral wool, perlite, insulating bricks, calcium silicate, ceramic fibers, and even aerogel blankets. In many temperature ranges, microporous board achieves a thermal conductivity lower than still air.
Key Features and Advantages of Microporous Board:
- Nanoscopic Structure: The small particle size minimizes surface contact, drastically reducing heat transfer via conduction.
- Nanoporous Design: With pore sizes around 20nm, gas molecules are trapped, nearly eliminating internal convection.
- Infrared Blocking: The addition of infrared-reflective powders helps block and reflect radiant heat, particularly at high temperatures, further reducing heat transfer.
These combined features make microporous board a highly efficient solution for thermal insulation, offering unparalleled performance in industrial and high-temperature applications.

- Technical Parameters
- Photo Gallery
| Grade | Unit | MIP-950 Flex | MIP -1050 Flex | |
| Color | Grey | White | ||
| Classification Temperature | ℃ | 950℃ | 1100℃ | |
| Main Composition | SiO2 SiC | SiO2 ZrSiO | ||
| Typical Density | kg/cm3 | ~240 | ~240 | |
| Shrinkage, full soak @ (°C*12h) | % | ≤2 (950) | ≤2 (1000) | |
| Shrinkage, one side @ (°C*12h) | % | ≤0.5 (950) | ≤0.5 (1000) | |
|
Thermal Conductivity | 200℃ |
W/m.K | 0.023 | 0.020 |
| 400℃ | 0.026 | 0.026 | ||
| 600℃ | 0.030 | 0.030 | ||
| 800℃ | 0.034 | 0.042 | ||
| Standard Sizes | L* W: | mm | 500*400 | 500*400 |
| Thickness: | mm | 3-20mm | 3-20mm | |
| Dimension Tolerance | Length and width direction: ±3mm; Thickness direction: ±1mm | |||
| Covering | POF film-covered, aluminum foil cloth-covered, fiberglass cloth-covered, | |||
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Why Choose Firebird?
At Firebird, we focus on one thing: delivering reliable refractory materials to our customers. To learn more about our refractory products, please visit our main website.
We have built a network of trusted manufacturers, and we use our experience to ensure that the products you receive meet your standards, every time. Our goal is to ensure you get the right materials at the right time, without complications.
Absolutely! We welcome plant audits and visits to our facilities. Please note that Firebird insulation refractory and high-performance refractories are manufactured in separate plants. Let us know your requirements, and we can arrange a convenient schedule for your visit to ensure a smooth and informative experience.
Yes, we provide free samples for testing purposes. However, customers are responsible for covering the courier charges associated with shipping the samples.
Our standard delivery time is generally between 10 to 15 days for most products. However, for specialized or customized bricks, the delivery time may extend to approximately one month. We strive to meet our customers’ timelines and will provide an estimated delivery date upon order confirmation.
We focus on transparency and quality at every step. After your order is placed, we:
- Share a detailed production plan.
- Provide weekly progress updates.
- Deliver a comprehensive test report for each batch.
- Carefully inspect the appearance, size, and weight of every product.
- Send shipment photos to keep you informed throughout the process.
This ensures complete visibility and trust in our manufacturing process.



















