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Extruded board, full name of extruded polystyrene foam board, also known as XPS board. It is a board made of polystyrene resin and other additives through extrusion process, with a continuous and uniform surface layer and closed cell honeycomb structure.
We can produce extruded boards of different sizes and parameters according to customer requirements:
| Serial Number | Testing items | Performance index |
|---|---|---|
| 1 | Density | ≥28 kg/m³ |
| 2 | Thermal conductivity | 0.029 w/(m.k) |
| 3 | Tensile strength perpendicular to the plane surface direction | ≥0.30 Mpa |
| 4 | Compressive strength | ≥0.25 Mpa |
| 5 | Dimensional stability | ≤1.0% |
| 6 | Thickness | 30mm-50mm,±1.5; >50mm,±2.0 |
| 7 | Length | ±2.0 mm |
| 8 | Width | ±1.0 mm |
| 9 | Diagonal difference | ±3.0 mm |
| 10 | Flat edge of the board | ±2.0 mm |
| 11 | Flatness of board surface | ±1.0 mm |
| 12 | Water Absorption Rate | vol:≤1.50% |
Due to its high heat resistance coefficient, few linear structures, and low expansion rate, as well as its peak pit structure with a closed cell rate of over 99%, a straight void layer is formed, effectively avoiding heat loss caused by air flow and achieving long-lasting and stable insulation effect. Extruded polystyrene board is currently the most effective building insulation material.
Due to its unique internal structure, the board has extremely high compressive strength and impact resistance, with a compressive strength of over 700Kp. It can withstand ground loads from various systems and is widely used in various fields.
An important factor in measuring the insulation performance of insulation materials is their water absorption rate. Once the insulation material absorbs water, its insulation performance will weaken. At lower temperatures, water can easily freeze when it enters the material board, causing a structural change in the plastic board and a decrease in its resistance and insulation performance. The chemical molecular structure of the medium dry board itself does not absorb water and has a stable structure without gaps, so there will be no water leakage, infiltration, frosting, condensation or other situations like other materials.
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