Perlite fire board, perlite insulation board, perlite fire brick, perlite exterior wall fire barrier, perlite fire board price, uses of perlite fire board, characteristics of perlite fire board, and production plants for perlite fire boards.
1. Production Process:
Xiangdong Perlite Fire Door Core
Perlite door core board, also known as perlite fire door core board, is made from expanded perlite, high-temperature resistant inorganic aggregates, and an inorganic binder. This environmentally friendly composite core board is designed to replace traditional materials like rock wool and aluminum silicate. It's a natural, green fireproof material that offers excellent thermal and acoustic insulation properties.
This product is non-toxic, odorless, non-combustible, and does not corrode steel plates. It can withstand temperatures up to 1100°C without melting or deforming, and it meets the A-grade combustion performance standard. Recent research has ensured compliance with the new GB12955-2008 national fire door standards.
Our company has conducted further studies on perlite fireproof boards and introduced testing procedures simulating GB7633-87, which outlines the fire test method for doors and rolling shutters. The furnace temperature rise curve follows the specifications outlined in GB7633-87. Below is a table showing the time-temperature relationship:
Time (min): 5 10 15 30 60 90 120
Temperature (°C): 556 659 718 821 925 986 1029
With increasing energy efficiency and fire protection requirements in modern buildings, materials such as rock wool and aluminum silicate have been phased out by the state. Perlite fireproof panels are now widely used in advanced countries as a safe and efficient alternative for doors and windows.
First, structural composition:
The main raw material is perlite, combined with modified binders and high-quality curing agents. This formulation ensures excellent performance and durability.
Second, production process:
1. Material selection: Use perlite with suitable bulk density and neutral binders.
2. Uniform mixing: Add a special modified binder and mix thoroughly using a dedicated mixer.
3. Press forming: The mixture is placed into a high-pressure mold and pressed into shape.
4. Demolding and packaging: The formed sheets are dried and packaged for distribution.
Third, technical performance:
Stable performance, lightweight (260–300 kg/m³). Excellent sound insulation and low thermal conductivity (0.076 W/m·K). High compressive strength (1.0–2.5 MPa) for thicknesses of 40–48 mm. Annual water absorption rate is over 10%. Resistant to water, acid, alkali, salt, freeze-thaw cycles, and temperatures above 1100°C. Non-ionic adhesive, neutral, and non-corrosive to wood and metal. Non-flammable, non-toxic, and pollution-free (complies with GB/T20285-2006). Achieves A1 grade fire resistance, meeting the new GB12955-2008 standard for fire doors.
Note: National Standard A1 fire performance index: 40–43 mm thickness can last over 100 minutes; 45–48 mm thickness can exceed 120 minutes.
2. Features of Xiangdong Perlite Fireproof (Door Core) Board:
a. Eco-friendly, natural, and non-polluting. Expanded perlite is a naturally occurring mineral that expands at high temperatures (over 1300°C) to form a hollow, honeycomb-like structure.
b. Non-combustible, waterproof, durable, and corrosion-resistant.
c. Lightweight, insulating, heat-retaining, and sound-absorbing.
d. Easy to cut, saw, and install, making it ideal for construction projects.
3. Specifications of Xiangdong Perlite Fireproof (Door Core) Board:
Available in dimensions of 300 × 500 × (20, 30, 40, 50, 60, 80, 100, 120) mm, or custom sizes based on customer requirements.
4. Performance:
Tested by the National Fixed Fire Extinguishing System and Fire-Resistant Component Quality Supervision and Inspection Center according to GB8624-1997, the board shows zero continuous burning time and mass loss rate of ≤5~12%, achieving Class A combustion performance. Perlite fire board is produced by pressing expanded perlite powder with high-temperature fireproof adhesive, resulting in a bulk density of 260–300 kg/m³, high refractoriness (>1100°C), high compressive strength (0.9–2.0 MPa), low thermal conductivity (<0.051 W/m·K), non-flammable, non-toxic, odorless, and eco-friendly.
Tested by the National Building Materials Testing Center, it achieves Class A fire performance. Its fire and thermal insulation performance exceeds that of aluminum silicate and rock wool, making it a cost-effective, eco-friendly, and fireproof material for use in fire doors.
5. Application:
It is ideal for filling wooden and steel fire doors, offering a superior alternative to aluminum silicate and rock wool. Perfect for both residential and commercial applications where fire safety is critical.
Normally open air valves are a type of Solenoid Valve that is designed to remain open in its default state, allowing air or gas to flow through the valve at all times. These mini air valves are commonly used in a variety of applications where a constant flow of air or gas is required, such as in pneumatic systems and gas pipelines.
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