High-Quality Water Resistance Building Material for Railway & Automotive with ASTM E84

• Customization: Available
• After-sales Service: 2-Year Quality Warranty
• Feature: Durable, Easy to Install, Fierproof, Heat Insulation, Noise Reduction, Waterproof
• Model NO.: class a
• Highest Working Temperature: 700℃
• After-Sales Support: Technical Team Provides Installation Guidance
• Customization Service: Free Sample Testing, and Personalized Size/Density
• Global Certifications: CE, 1s0 9001, ASTM C612, and GB/T 11835-2016
• Smoke Density Rating: ASTM E84 ≤50 %
• Water Vapor Permeability: ISO 12572 ≥0.03 Kg/(M·S·PA)
• Tensile Strength (Vertical): En 1607 ≥7 Kpa Stable Installation
• Transport Package: Pb
• Specification: 1200*600mm, Thickness: 30-200mm
• Trademark: Zhongjia
• Origin: Guangdong, China
• Package Size: 100.00cm * 200.00cm * 100.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

Our rock wool boards have passed third-party laboratory testing

Key Applications

Our rock wool boards are widely used across industries due to their fire resistance, thermal insulation, and sound absorption properties.

1. Construction Industry

 

    Exterior Wall Insulation: Reduces building energy loss, meets energy-saving standards (e.g., China's GB 50189, EU's EPBD).

    Roof & Floor Insulation: Withstands extreme temperatures (-40℃ to 700℃) and prevents heat transfer between floors.

    Fire Barriers: Installed in stairwells, elevator shafts, and wall partitions to block fire spread (fire resistance duration: 120-180 minutes).

 

2. Industrial Sector

 

    Industrial Equipment: Insulates boilers, furnaces, and heat exchangers to improve energy efficiency and protect workers from high temperatures.

    HVAC Systems: Wraps air ducts and pipes to reduce thermal loss and noise pollution (sound absorption coefficient: ≥0.7 at 500Hz).

    Power Plants & Petrochemicals: Resists chemical corrosion and high temperatures, suitable for insulation of pipelines and storage tanks.

 

3. Transportation

 

    Shipbuilding: Used in ship cabins for fireproofing and thermal insulation (complies with IMO SOLAS standards).

    Railway & Automotive: Insulates train carriages and electric vehicle battery compartments (lightweight, non-toxic).

Why Choose Our Rock Wool Boards?

Global Certifications: CE (EN 13162), ISO 9001, ASTM C612, and GB/T 11835-2016, ensuring compliance with international markets.

    Bulk Supply Capacity: 100,000 square meter monthly production, supporting large orders with 7-15 days delivery time.

    Customization Service: Free sample testing, and personalized size/density/facing options.

    After-Sales Support: Technical team provides installation guidance, and 2-year quality warranty.

 

For detailed test reports, quotation lists, or sample requests, please contact our sales team via [your email] or [your WhatsApp/WeChat number]. We look forward to partnering with you!

Parameter

Property Category	Test Standard	Value	Description
Thermal Insulation	-	Thermal Conductivity at 25°C: 0.038 W/(m·K)	Lower than industry average (0.042 W/(m·K)), saves 15% energy consumption
Fire Resistance	ASTM E84	Flame Spread Index: 10 - Class A fire rating (GB 8624-2012 A1)	Non-combustible
Fire Resistance	ASTM E84	Smoke Density Rating: 50%	Low smoke emission, safe for public areas
Mechanical Strength	ISO 844	Compressive strength (10% deformation): 80 kPa	Withstands heavy loads in floor/roof insulation
Mechanical Strength	EN 1607	Tensile Strength (vertical): 37 kPa	Stable installation, no cracking or falling
Water & Moisture Resistance	ISO 10456	Water Absorption (volume): 1.5%	Prevents moisture penetration, suitable for outdoor use
Water & Moisture Resistance	ISO 12572	Water Vapor Permeability: -0.03 kg/(m·s·Pa)	Allows moisture escape, avoids mold growth
Chemical & Environmental	EN 13472	pH Value: 7.0-8.5	Neutral, no corrosion to steel/concrete structures
Chemical & Environmental	GB 18583-2008	Formaldehyde Emission: <0.1 mg/m³	Eco-friendly, meets indoor air quality standards
Dimensional Stability	EN 1604	Shrinkage at 70°C (24h): 1.0%

specification

Note: Density, thickness, and dimensions can be adjusted based on your technical drawing or project needs. Surface treatment options (e.g., aluminum foil facing, kraft paper facing) are also available for enhanced moisture resistance.

Specification Type	Thickness	Width	Length	Density Range	Application Scenario
Standard Board	20-150mm	600mm	1200mm	80-200 kg/stere	Wall insulation, ceiling insulation
Industrial Thick Board	150-300mm	600mm	1200mm	200-300 kg/stere	Boiler insulation, industrial pipe wrapping
Customized Size	10-300mm	300-1200mm	1000-2400mm	60-350 kg/stere	Special-shaped equipment, container insulation

Main Products

Company Profile

Zhongjia Energy-saving Technology Co., Ltd. is a national high-tech manufacturing enterprise that integrates production, sales, and innovative research and development. Its production bases are located in Foshan, Guangdong, Yixing, Jiangsu, and Chengdu, Sichuan, with a total factory area exceeding 60,000 square meters. The company specializes in the production and sales of rubber and plastic insulation materials, rock wool boards, glass wool, XPS extruded boards, XPS extruded backing boards, aluminum foil insulation films, and other supporting auxiliary materials. The insulation products we produce are characterized by ultra-lightweight, thermal insulation, heat preservation, sound insulation, fire resistance, and high water repellency. They are widely used in the insulation and thermal insulation fields of construction, electromechanical installation, central air conditioning, medical purification, automotive sealing and sound insulation, building sound insulation, and other industries and sectors. They feature good energy-saving effects, long service life, and convenient construction. 

After years of continuous improvement and development, Zhongjia has grown to possess a technical team and production and sales personnel numbering over a hundred. The company's factory spans a total area of over 30,000 square meters, equipped with 5 advanced foaming furnace production lines, and boasts an annual output value exceeding 800,000 cubic meters of insulation materials. Our products are widely sold in China, Southeast Asia, Europe, the Middle East, and other regions, earning the sincere trust and support of numerous customers. We steadfastly adhere to the business philosophy of "Quality First, Service First, Efficiency First," striving to expand and strengthen our operations to provide superior products. We are eager to collaborate with colleagues from all sectors, both new and longstanding customers, to forge ahead and create a grand vision together.

 

workshop

Certifications

Exhibitions

Packaging & Shipping

FAQ

Q1: Are you a manufacturer or trading company?
A1: We are a professional energy-saving insulation manufacturer for 8 years.

Q2: Do you accept sample orders?
A2: Sample order is acceptable. We can provide free samples, and the samples can be sent within 1~3 days after confirming the
freight payment.

Q3: Do you have any certifications to guarantee the quality?
A3: Our products, such as CE, BS476, FM, ISO9001, ISO14001, OHSAS18001 certificates, show excellent chemical and physical
functional stability.

Q4: What services can Dongkang provide?
A4: Your inquiry will be replied within 1 hour.
* We are a professional manufacturer. Welcome to visit our company and factory at any time!
* If you have any feedback on the packaging, we can help you in the design and production. Customized products are available.
* High quality, reasonable and competitive price, fast delivery time.
* All products are subject to strict quality inspection before packing.
* All products will be properly packed before shipment. Prepare sample order, it only takes 3~10 days after arriving at the address.

Q5:How long is the delivery time for 1x40HQ container loading order?
A5: Within 3-15 days after receiving the advance payment.