Perlite fire board, perlite insulation board, perlite fire brick, perlite exterior wall fire barrier, perlite fire board price, usage of perlite fire board, characteristics of perlite fire board, and the production plants that manufacture it.
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 inorganic environmental protection binders. It is a composite core board processed through an advanced manufacturing process. This material serves as a natural, green, and environmentally friendly alternative to traditional materials like rock wool and aluminum silicate.
The perlite fire door core board is non-toxic, odorless, non-flammable, and non-corrosive to 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 focused on improving its compliance with the updated GB12955-2008 national fire door standards.
Our company has conducted further studies on this product and introduced testing methods simulating GB7633-87, which outlines the fire test procedures for doors and rolling shutters. The experimental furnace used in these tests follows the temperature rise curve specified in GB7633-87. Below is a sample of the time-temperature relationship during the test:
Time (min): 5, 10, 15, 30, 60, 90, 120
Temperature (°C): 556, 659, 718, 821, 925, 986, 1029
With increasing energy efficiency and fire safety requirements in modern buildings, materials like rock wool and aluminum silicate are being phased out by the government. Perlite fireproof panels have become a preferred choice for modern fire-resistant doors and windows, commonly used in developed countries.
First, the structural composition:
The main raw material is perlite, combined with modified binders and high-quality curing agents. This ensures a stable and durable final product.
Second, the production process:
- Material selection: High-quality perlite with suitable bulk density is chosen, along with neutral binders.
- Uniform mixing: A special modified binder is added to the perlite and thoroughly mixed using a specialized mixer.
- Press forming: The mixture is then placed into a high-pressure mechanical mold and pressed into shape.
- Demolding and packaging: After drying, the finished boards are removed from the mold and prepared for packaging.
Third, technical performance:
- Stable performance with moderate weight (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 between 40–48 mm.
- Water resistance with annual water absorption rate not less than 10%.
- Resistant to water, acid, alkali, salt, freeze-thaw cycles, and high temperatures (>1100°C).
- Non-ionic adhesive, neutral, and non-corrosive to wood and metal.
- Non-combustible, non-toxic, and pollution-free, meeting the GB/T20285-2006 standard.
- Refractory grade A1, compliant with the new GB12955-2008 "Fire Door" standard.
- Note: National Standard A1 fire performance: 40–43 mm thickness can withstand over 100 minutes; 45–48 mm can exceed 120 minutes.
2. Features of Xiangdong Perlite Fireproof (Door Core) Board:
- Environmentally friendly: Natural, non-polluting, made from expanded perlite formed at temperatures above 1300°C.
- Fire-resistant: Non-flammable, waterproof, long-lasting, and corrosion-resistant.
- Lightweight: Offers good thermal insulation, heat retention, and sound absorption properties.
- Easy to install: Can be cut, sawed, and shaped as needed.
3. Specifications of Xiangdong Perlite Fireproof (Door Core) Board:
- Standard sizes: 300 × 500 × (20, 30, 40, 50, 60, 80, 100, 120) mm.
- Custom designs available upon customer request.
4. Performance:
Tested by the National Fixed Fire Extinguishing Systems and Fire-Resistant Components Quality Supervision and Inspection Center according to GB8624-1997. The results show zero continuous burning time and a mass loss rate of ≤5–12%, achieving Class A combustion performance. The perlite fire board is made from expanded perlite powder and high-temperature fireproof adhesive, pressed into molds with a bulk density of 260–300 kg/m³.
It has high refractoriness (>1100°C), strong compressive strength (0.9–2.0 MPa), low thermal conductivity (≤0.051 W/m·K), is non-flammable, non-toxic, odorless, and pollution-free. The National Building Materials Testing Center confirmed its Class A combustion performance. Its fire and heat insulation performance exceeds that of aluminum silicate cotton and rock wool, making it a cost-effective, eco-friendly, and fireproof filling material for doors.
5. Application:
It is ideal for use as a filling material in wooden and steel fire doors, serving as an effective alternative to aluminum silicate cotton and rock wool.
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