Graphite-molded polystyrene board
A closed-cell rigid foam insulation board manufactured from polystyrene resin, incorporating a graphite modifier, and produced through pre-foaming, aging, molding, and cutting.
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Graphite-molded polystyrene board
A closed-cell rigid foam insulation board manufactured from polystyrene resin, incorporating a graphite modifier, and produced through pre‑foaming, aging, molding, and cutting. The graphite component reflects thermal radiation, resulting in superior insulation performance compared to conventional polystyrene boards, making it a widely used, high‑efficiency insulation material in exterior wall insulation systems.
Performance Metrics
1. Combustion performance: Class B1 (flame-retardant)
2. Thermal conductivity: ≤0.033 W/(m·K) (at 25°C)
3. Bulk density: 18–22 kg/m³
4. Water absorption (by volume): ≤4% (after 24 hours of immersion)
5. Compressive strength (10% deformation): ≥0.15 MPa
6. Dimensional Stability: ≤2% (70°C ± 2°C, 48 h)
7. Oxygen Index: ≥30%
8. Burning Drip: None (within 60 seconds)
Scope of Application
It is used as an insulation layer in residential buildings, public buildings, commercial buildings, and for energy‑saving retrofits of existing structures.
Product Advantages
1. High thermal insulation efficiency: With a thermal conductivity 30% lower than that of conventional polystyrene boards, it delivers significant energy savings.
2. Excellent flame-retardant performance: Class B1–difficulty to ignite, with no dripping during combustion and low smoke density, meeting fire safety requirements.
3. Excellent dimensional stability: Low water absorption combined with superior dimensional stability ensures no deformation or cracking even after prolonged use.
4. Easy to install: Lightweight and easy to cut, with large individual panel dimensions (typically 1200×600 mm), ensuring high installation efficiency.
5. Excellent cost-effectiveness: Balances high‑efficiency thermal insulation with affordability, delivering strong energy‑saving benefits over the entire lifecycle.
Instructions for Use
1. Substrate Preparation: The wall surface must be smooth (flatness deviation ≤ 5 mm/2 m) and clean; remove any hollow-sounding areas and loose dust, then apply a bonding agent.
2. Preparation of bonding mortar: Mix the specialized polymer‑based bonding mortar with water at a water‑to‑cement ratio of 1:0.25–0.3, stir thoroughly, and let it stand for 5 minutes before use.
3. Panel Installation: Apply the adhesive using the spot‑bond method, ensuring that at least 40% of the panel surface is covered with bonding mortar. Maintain a joint spacing of no more than 2 mm, and stagger the joints between adjacent rows by at least half the panel length.
4. Anchorage and Reinforcement: Install plastic expansion anchors 24 hours after bonding; the anchor density shall be no less than 6 anchors/m² (for buildings longer than 20 m, the density shall be no less than 8 anchors/m²).
5. Joint Treatment: Fill the panel joints with polyurethane foam sealant (joint spacing ≤ 2 mm).
6. Protective Layer Construction: Apply a 3–5 mm-thick layer of dedicated finishing mortar, embedding an alkali-resistant fiberglass mesh fabric in the middle (lap width ≥ 100 mm).
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