Microporous Insulation Board Facts, Shapes, Sizes, Installation

Have you heard of the Microporous Insulation Board? This is an excellent material among other high-temperature thermal insulation materials. As a consumer, you may be curious about the advantages. Or you may already understand and are looking for the best supplier that sells this material. But if you are a businessman, you will also be very interested in finding the most recommended supplier to make it a potential business material.

Everyone who works in or is associated with high-risk industries is probably familiar with Microporous Insulation Boards. This board is also often relied on by engineers and procurement managers in the steel, chemical, glass, and ceramics industries. But when this product is familiar in industrial applications, not a few people are still unfamiliar with how it differs from conventional heat-resistant materials.

So, let’s take a moment to know more about this special product. No matter where you are, this kind of information is useful for adding insight. If you’re a user, you’ll probably be better at choosing a product that’s good at managing extreme heat.

What Is a Microporous Insulation Board?

A microporous insulation board — also widely known as a microporous silica board — is a high-performance thermal insulation panel built around a microporous structure. It is made from chains of amorphous fumed silica agglomerates, with individual particle sizes ranging from 7 to 12 nanometres. This ultra-fine structure creates an enormous internal surface area, which is precisely what gives the material its exceptional insulating capability.

At the core of its composition is silicon dioxide (SiO₂), which typically makes up 60–80% of the panel. The remainder consists of silicon carbide (SiC) at 10–30%, which acts as an opacifier to minimise infrared radiation transmission at elevated temperatures, plus a small percentage of other additives. The result is a panel that achieves thermal conductivity values lower than that of still air across a wide operating temperature range — something no conventional insulation material can match.

Interesting Facts About Microporous Insulation Board

If you are a business person, this will be useful for sustainable business progress. At least you can be more observant in choosing suppliers who can provide products with maximum quality assurance and offer the most affordable prices. Let’s look at the following description to find out interesting facts about Microporous Insulation Board:

Including One of the Latest Innovation Products

As soon as this product was released, it became the prima donna and the most sought after by clients and consumers. Although the Microporous Insulation Board is a product of new technology, it immediately received a favorable response from the market. The manufacture of this material mainly targets the demand for thermal insulation, which has a high temperature working range.

Because it is the result of new technology, not all suppliers produce it. So you need to carefully read the opportunities and browse the information to get a first-hand supplier for this product. This particular manufacturer of insulation boards is usually experienced, has an extensive business network, and has a very good reputation in the eyes of its clients.

Available in Various Shapes

The use of Microporous insulation boards is very dynamic. Some clients order them for lining needs in high-temperature industrial furnaces, others for fire protection in aerospace instruments or domestic appliances. When distributed to the global market, you will find several forms of this thermal insulator.

Among them are in the form of rigid boards and flexible boards. You must identify your needs to choose the right type of board. When you work with the right supplier, you can even choose the form of packaging you want so that it supports your business even more.

Installation of Microporous Insulation Board is Relatively Easy

Unlike conventional thermal insulators, this special product is relatively easy and convenient to install and easy to cut when you want to fit your needs. The use of high-quality nano-micro thermal insulation materials will significantly reduce the number of thermal insulation components.

This is the logical reason why the installation of this material can be very easy and fast. The microporous insulation board is also very light and small in size. You will not be too burdened with transportation or storage costs.

Safe and Environmentally Friendly

This thermal insulation board has stable properties even under high-temperature working conditions. Especially, the product is very safe because the installation process is clean and does not contain respirable fibers that can cause harm to workers or the environment. This material is also environmentally friendly when compared to other products with similar functions.

If you are willing to take the time to research and be selective, it will not be difficult to find a first-hand supplier that manufactures and sells good quality Microporous insulation board. You even have the opportunity to order this material according to custom, where you can determine the size, shape, and quantity. Whatever your needs, a good supplier will try to serve it optimally and with a mutually beneficial cooperation agreement.

Performance Comparison: Microporous vs Conventional Insulation

One of the most compelling reasons engineers switch to microporous insulation boards is the dramatic difference in thermal conductivity. To put this in perspective, the table below compares the thermal conductivity of a standard microporous insulation panel (HT-1000) against commonly used conventional insulation materials at equivalent temperatures.

Material	Thermal Conductivity @200°C (W/mK)	Thermal Conductivity @600°C (W/mK)	Max Use Temp (°C)
Microporous Board (HT-1000)	<0.020	<0.032	1000
Microporous Board (MT-800C)	0.023	0.033	800
Mineral Wool / Rock Wool	~0.060	~0.160	700–900
Refractory Ceramic Fibre	~0.080	~0.200	1000–1400
Calcium Silicate Board	~0.090	~0.180	650–1000
Still Air (reference)	~0.033	~0.047	—

As the table shows, the HT-1000 microporous board achieves thermal conductivity values below that of still air at temperatures up to 1000°C — a performance level that is theoretically close to the minimum possible for any solid insulation material. This is why, on the same thermal performance basis, a microporous board can be 3 to 4 times thinner than an equivalent mineral wool or ceramic fibre lining.

Standard Sizes and Customisation Options

Microporous insulation boards are available in a range of standard panel sizes to suit most industrial applications. Standard dimensions include 1200 × 1000 mm, 1200 × 500 mm, 1000 × 600 mm, and 600 × 500 mm. Thickness options range from 10 mm to 50 mm, with a tolerance of ±1 mm on thickness and ±3 mm on overall panel dimensions.

For projects with specific geometric requirements, custom shapes are available. The boards can be cut, drilled, and machined to customer specifications. Surface finishing options include uncoated panel, POF/PE shrinkage film, aluminium foil packing, aluminium composite film packing, and glass fibre cloth wrapping. Each finishing option offers different levels of protection and handling convenience depending on the installation environment.

Industries and Applications

The range of industries that benefit from microporous insulation boards is broad, precisely because extreme heat management is a universal challenge in manufacturing and processing. Below are the primary sectors where this material is actively used:

• Steel industry — Ladle, tundish, and torpedo ladle lining where temperatures regularly exceed 900°C and heat retention directly impacts energy costs.
• Chemical and petrochemical — Cracking furnace insulation where both high temperature resistance and chemical stability are required.
• Non-ferrous metals — Melting furnaces, holding furnaces, casting ladles, and launders in aluminium, copper, and zinc processing.
• Cement and mineral processing — Rotary kiln backup insulation where reducing shell temperature improves efficiency and equipment life.
• Ceramics — Tunnel kiln lining where precise temperature uniformity is essential to product quality.
• Glass manufacturing — Melting tanks, distribution launders, and bending ovens where thermal gradients must be tightly controlled.
• High-temperature instruments — Temperature data recorders and thermal batteries where compact insulation is critical.
• Domestic appliances — Storage heaters and radiant cookers that require slim, efficient insulation within tight product dimensions.
• Aviation and navigation — Black boxes and instrument housings where weight reduction and fire protection are paramount.
• Other applications — Fuel cells, elevator shaft fire doors, and rescue capsules.

Product Grades: HT-1000 vs MT-800C

Silicapro offers two primary grades of microporous insulation board, each suited to different maximum operating temperatures. Choosing the right grade depends on the peak temperature in your application rather than simply the continuous operating temperature.

Specification	HT-1000	MT-800C
Max Application Temperature	1000°C	800°C
Density	~280 kg/m³	~250 kg/m³
Thermal Conductivity @200°C	<0.020 W/mK	0.023 W/mK
Thermal Conductivity @400°C	<0.026 W/mK	0.028 W/mK
Thermal Conductivity @600°C	<0.032 W/mK	0.033 W/mK
Thermal Conductivity @800°C	<0.038 W/mK	0.040 W/mK
Thermal Shrinkage (full soak 24h)	≤3.0% @1000°C	≤3.0% @800°C
Thermal Shrinkage (one side heating)	≤2.0%	≤2.0%
Composition	SiO₂ 60–80%, SiC 10–30%, others 5–10%	SiO₂ 60–80%, SiC 10–30%, others 5–10%
Standard Panel Sizes	1200×1000, 1200×500, 1000×600, 600×500 mm	1200×1000, 1200×500, 1000×600, 600×500 mm
Thickness Range	10–50 mm	10–50 mm
Non-combustible	Yes	Yes
Respirable Fibre Free	Yes	Yes

The HT-1000 grade is the appropriate choice for steel ladle and tundish applications, high-temperature ceramics kilns, and glass melting environments. The MT-800C is well suited to petrochemical process equipment, non-ferrous melting furnaces, and domestic appliance applications where the temperature ceiling is lower but weight reduction is still a priority.

Recommended Microporous Insulation Board Supplier & Manufacturer in China

One of the most recommended first-hand suppliers is Silicapro. As a leading enterprise in China’s high silica industry, Silicapro specialises in nano-microporous insulation boards for high-temperature industrial applications. The company combines research-driven product development with factory-direct manufacturing, offering OEM production, wholesale supply, and customisable sizes, surface coatings, and packaging options.

The company meets complete criteria as one of the most recommended suppliers. In addition to having experience and a good reputation, the company also confirms its quality by obtaining various achievements and certificates to confirm the quality of its products and services. You can get more information about the Microporous insulation board and other fire-resistant products by visiting www.silicapro.com.

Frequently Asked Questions (FAQ)

What is the difference between a microporous insulation board and a standard ceramic fibre board?

The key difference lies in thermal conductivity and safety profile. Ceramic fibre boards achieve their insulating performance through low-density fibre structures, but they contain respirable fibres that are classified as potential carcinogens under sustained exposure. Microporous insulation boards are fibre-free and achieve significantly lower thermal conductivity — typically 3 to 4 times lower than ceramic fibre — through their nanoscale pore structure. This means a thinner, lighter microporous board can match or exceed the thermal performance of a much thicker ceramic fibre panel, while also being safer to handle and install.

Can microporous insulation boards be used in direct flame contact?

Microporous insulation boards are non-combustible and designed to function in high-temperature environments, but they are not intended for direct, sustained flame impingement without protective facing. In most furnace applications, the board is installed as a backup or intermediate insulation layer behind a hot-face refractory. For applications involving direct exposure, a glass fibre cloth or aluminium composite facing can be applied to provide additional surface protection. Always refer to the product MSDS and consult with the manufacturer for application-specific guidance.

Is microporous insulation board safe to handle during installation?

Yes. Both the HT-1000 and MT-800C grades are made from green materials and contain no respirable fibres, which means they do not pose the inhalation risks associated with mineral wool or ceramic fibre products. Standard dust precautions are recommended when cutting or machining the board, as fine silica dust can be generated. The products are not considered hazardous under prescribed operating conditions, and full safety data is available in the product MSDS sheets. One important installation note: the boards must not come into contact with liquids during installation or service, as moisture can affect performance.

What customisation options are available for microporous insulation boards?

Silicapro offers a comprehensive range of customisation options. Panel dimensions can be adjusted from the standard sizes to meet specific equipment requirements, provided a minimum order quantity is met. Thickness can be specified within the 10–50 mm range. Boards can be supplied with various surface finishings, including uncoated, POF/PE shrinkage film, aluminium foil, aluminium composite film, or glass fibre cloth wrapping. For complex geometries, cutting, drilling, and other machining processes are available. Hydrophobic treatment can also be applied to select products where moisture resistance is a concern.

How does microporous insulation board contribute to energy saving?

Because microporous insulation board has thermal conductivity values that are 3 to 4 times lower than conventional insulation, significantly less heat escapes through the furnace or equipment wall. This reduced heat loss translates directly into lower fuel consumption and shorter heat-up times. In addition, the reduced panel thickness required to achieve the same thermal resistance means less thermal mass in the structure, which further improves the efficiency of cyclic heating operations. Industries with continuous high-temperature processes — such as steel, glass, and ceramics — typically report measurable reductions in energy costs after switching to microporous insulation.

What is the minimum order quantity for custom sizes?

Silicapro accepts factory customisation orders for dimensions outside the standard panel sizes, subject to a minimum order quantity. The exact MOQ depends on the specific product grade and customisation requirements. For accurate lead times, pricing, and minimum order details, it is best to contact the Silicapro sales team directly with your technical specifications and project volume.

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Last reviewed by the Silicapro Engineering Team – 7 April 2026