Calcium Silicate Board Insulation Refractory

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Calcium Silicate Boards for Boiler Insulation

Firebird Calcium Silicate Board are CE Certified product, which enjoy the characteristics of high strength, uniform structure, low thermal conductivity, low shrinkage rate and low moisture content.

Grade FCS-17, FCS-22, FCS-25, FCS-27, FCS-25H, FCS-27H, FCS-30H

CE Certificate product

Available in straight, arch, pipe cover and special shapes

Asbestos-free;

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Introduction

Features

Photo Gallery

Product Knowledge

Technology Parameters

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1. Characteristics of Calcium Silicate Boards

Calcium silicate boards are high-performance insulation materials widely used in boilers and high-temperature equipment. Their key characteristics include:

High-Temperature Resistance: Can withstand temperatures above 1000°C, making them ideal for boilers and other high-temperature applications.
Low Thermal Conductivity: Provides excellent insulation and heat retention, effectively reducing heat loss.
High Strength: Offers strong compressive and flexural resistance, ensuring durability under mechanical stress during boiler operation.
Lightweight: Low density and lightweight, making transportation and installation easier.
Fireproof: Classified as an A-grade non-combustible material, effectively preventing fire spread.
Environmentally Friendly: Non-toxic, safe to use, and meets environmental standards.

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2. Benefits of Calcium Silicate Boards in Boilers

✅ Superior Thermal Insulation Reduces heat loss, improving the overall thermal efficiency of boilers. Applied in boiler walls and flue ducts, significantly lowering surface temperatures and enhancing the working environment.
✅ Excellent High-Temperature Resistance Maintains structural stability under extreme heat, preventing deformation and damage in high-temperature conditions.
✅ Extends Boiler Lifespan Acts as a protective barrier, preventing thermal erosion on the boiler shell. Reduces thermal stress, thereby prolonging equipment service life.
✅ Easy Installation Lightweight and easy to cut, allowing for quick and efficient insulation installation.
✅ Energy-Saving & Eco-Friendly Minimizes fuel consumption by preventing heat loss. Reduces carbon emissions, supporting sustainable and green energy practices.

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3. Uses of Calcium Silicate Boards in Boilers

🔹 Boiler Wall Insulation

Used as lining materials inside boiler walls to block extreme heat, protect the furnace structure, and reduce heat dissipation.

🔹 Flue Duct Insulation

Installed on the inner walls of flue ducts to reduce surface temperatures, minimize heat loss, and prevent condensation on external surfaces.

🔹 Boiler Pipe Insulation

Used as an insulation layer for boiler piping, preventing heat loss and enhancing energy efficiency.

🔹 Boiler Shell Insulation

Applied to the outer shell of boilers to lower exterior temperatures, improve workplace safety, and reduce heat radiation affecting surrounding equipment.

4. Installation Guidelines for Boilers

📌 Material Selection

Choose the right specifications and thickness based on the boiler’s working temperature and operating conditions.

📌 Installation Process

Ensure the calcium silicate boards are tightly fitted to the boiler surface to avoid gaps.
Secure boards using high-temperature adhesives or mechanical anchors for stability.

📌 Seam Treatment

Fill the gaps between boards with high-temperature sealants to prevent heat leakage.

📌 Surface Protection

Apply a protective coating on the board surface to enhance corrosion resistance and durability.

5. Economic Benefits of Calcium Silicate Boards

💰 Energy Cost Savings

Significantly reduces fuel consumption, lowering operating costs.

🛠 Lower Maintenance Costs

Highly durable and stable, reducing maintenance frequency and repair expenses.

📈 Improved Productivity

Optimized thermal insulation enhances boiler efficiency, boosting overall industrial productivity.

6. Conclusion

Calcium silicate boards offer exceptional high-temperature resistance, thermal insulation, lightweight strength, and durability, making them ideal for boiler insulation. They enhance thermal efficiency, extend equipment lifespan, and reduce operational costs, supporting energy-saving and eco-friendly initiatives. With continuous technological advancements, calcium silicate boards will play an increasingly vital role in industrial energy conservation and sustainable development.

Technology Parameters

1000℃ Calcium Silicate Board
Grade	Unit	FCS-17	FCS-22	FCS-25	FCS-27
Bulk Density	Kg/m3	≤ 170	220 ±10%	250 ±10%	270 ±10%
Compressive Strength At 5% Deformation	Mpa	≥ 0.4	≥ 0.65	≥ 1.0	≥ 1.0
Flexural Strength	Mpa	≥ 0.2	≥ 0.4	≥ 0.55	≥ 0.55
Service Temp. Limit	℃	≤ 1000	1000	1000	1000
Linear Shrinkage	%	≤ 2	≤ 2	≤ 2	≤ 2
Linear Shrinkage	%	1000℃x3h	1000℃x16h	1000℃x16h	1000℃x16h
Thermal Conductivity
200℃	W/m.K	≤ 0.060	≤ 0.075	≤ 0.080	0.098
400℃		≤ 0.086	≤ 0.098	≤ 0.105	0.11
600℃		≤ 0.121	≤ 0.128	≤ 0.132	0.158
800℃		—	≤ 0.160	≤ 0.165	0.218

1100℃ Calcium Silicate Board
Grade	Unit	FCS-25H	FCS-27H	FCS-30H
Bulk Density	Kg/m3	250 ±10%	270 ±10%	300 ±10%
Compressive Strength At 5% Deformation	Mpa	≥ 0.9	≥ 1.0	≥ 1.1
Flexural Strength	Mpa	≥ 0.5	≥ 0.55	≥ 0.60
Service Temp. Limit	℃	≤ 1100	≤ 1100	≤ 1100
Linear Shrinkage	%	≤ 2	≤ 2	≤ 2
Linear Shrinkage	%	1050℃x3h	1050℃x3h	1050℃x3h
Thermal Conductivity	W/m.K
200℃		0.085	0.098	0.102
400℃		0.1	0.11	0.116
600℃		0.152	0.158	0.164
800℃		0.214	0.218	0.226
Surface Condition:	Standard A: Original	dimple pattern, non-four side cutting (Default delivery standard) sanded, four side cutting (Extra Charge)
Surface Condition:	Standard B: Double

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Frequently asked questions (FAQs)

Can we visit your factory?

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.

How does Firebird ensure the quality of its refractory products?

At Firebird, quality assurance is integral to our operation, embodying our commitment to transparency and excellence. Here's how we ensure top-notch quality: Transparency in Production: After you place an order, we provide you with a detailed production plan, outlining each stage of the manufacturing process. Weekly Progress Updates: We keep you informed with weekly updates, so you always know the status of your order. Detailed Testing: Every batch of products undergoes thorough testing, and we provide a detailed test report that includes data on chemical composition, physical properties, and compliance with international standards. Comprehensive Inspections: We meticulously check the appearance, size, and weight of each product to ensure they meet our stringent quality criteria. Shipping Documentation: To maintain transparency and trust, we share photos of your order at the shipping stage, allowing you to see the final packaging and labeling.

Can you provide samples of your products?

Yes, we can provide samples of our products. We understand the importance of testing materials in your specific application and are happy to assist with samples upon request. Please contact our sales team to arrange for sample delivery.

Do you accept custom dimensions for your refractory products?

Absolutely. Firebird specializes in customizing refractory materials to meet specific customer requirements. Whether you need custom shapes, sizes, or specifications, our team can accommodate your needs. Please provide your detailed requirements, and we will work closely with you to deliver the perfect solution.

What is the typical delivery time for orders?

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.

What payment methods do you accept?

We accept payments via T/T (Telegraphic Transfer) in major currencies such as Euro (EUR) and US Dollar (USD). Our payment terms are flexible, and we can accommodate different payment schedules based on the agreement.

Who are your main customers?

Firebird takes pride in its extensive global reach, serving a diverse clientele across more than 40 countries. Our customers range from Southeast Asia's dynamic industrial centers to the heartlands of the USA. We also have significant market presence in Europe, South America, and Africa. This broad geographical distribution allows us to cater to various industries, including glass manufacturing, steel production, and other high-temperature industrial applications, ensuring our products meet the specific needs of each region.