Technical parameters of XLPE insulation board

1、 Basic parameters
Density; 25~45 kg/m ³ | GB/T 6343/ASTM D1622 | Density of 30~35 kg/m ³ is a universal version; The higher the density, the better the mechanical strength
Thickness; 3~50 mm (customized) | Manufacturer's standard/ISO 3886 | Pipeline insulation commonly used 10~20 mm; Cold storage insulation commonly used 20~30 mm | | | Width | ≤ 1200 mm | Manufacturer's standard | Roll width is mostly 1000/1200 mm; Sheet can be customized in large size | | | Length | Roll: 10~50 m<br>Sheet: customized (such as 1000 × 2000 mm) | Manufacturer's standard | Choose according to needs, long roll material suitable for large-scale construction | | | Bubble structure | Closed cell, bubble diameter 0.1~0.5 mm | GB/T 10799 | Closed cell rate ≥ 95%, ensuring low water absorption and moisture resistance | | | | Color | Black, white (customizable color) | Manufacturer's standard | Black is a universal version; White is suitable for clean environments (such as pharmaceutical workshops) 

2.Thermal performance (core insulation index) 

Thermal conductivity (average temperature 0 ℃) | 0.032~0.038 W/(m · K) | GB/T 10295/ASTM C518 | The lower the value, the better the insulation effect; The thermal conductivity of IXPE model can be as low as 0.032 W/(m · K), and the thermal conductivity (average temperature 25 ℃) | 0.035~0.040 W/(m · K) | GB/T 10295/ASTM C518 | Commonly used values at this temperature in building HVAC scenarios | | | Temperature range for use | Continuous use: -80 ℃~105 ℃<br>Short term use: -100 ℃~120 ℃ | Manufacturer testing/ISO 8572 | IXPE (irradiation crosslinking) model is preferred for ultra-low temperature scenarios (such as below -40 ℃) | | | Moisture resistance factor | ≥ 10000 | GB/T 17794/ASTM E96 | The higher the moisture resistance factor, the stronger the resistance to water vapor penetration and the better the anti condensation effect | | | Heat shrinkage rate (100 ℃, 24h) | ≤ 2% | GB/T 13519/ASTM D1204 | Low shrinkage rate, not easily deformed when used at high temperatures 

3、 Combustion performance;
Oxygen Index (OI) | ≥ 26 | GB/T 2406.2/ASTM D2863 | Oxygen Index ≥ 26 is non combustible, meeting the basic requirements of building fire prevention | | | Combustion Grade | National Standard: B1 level (non combustible)<br>International: Class E (EN 13501-1) | GB 8624/EN 13501-1 | B1 level must be selected for building public areas and air duct insulation; Export to the EU requires confirmation of EN standard level | | | Smoke Density Rating (SDR) | ≤ 75 | GB/T 8627/ASTM E662 | The lower the smoke density, the higher the safety in case of fire | | | Smoke Toxicity | Reaching ZA1 level (quasi safety level) | GB/T 20285 | Suitable for densely populated places (such as shopping malls and subways)

4、 Physical performance;
Water absorption rate (volume fraction, 24h) | ≤ 0.5% | GB/T 8810/ASTM D1056 | Closed cell structure ensures low water absorption rate without additional moisture-proof layer | | Compression rebound rate (50% compression rate, 24h) | ≥ 70% | GB/T 6669/ASTM D3574 | High rebound rate, resistant to compression deformation, suitable for vibration equipment insulation | | | Tensile strength | ≥ 0.15 MPa | GB/T 1040.3/ASTM D638 | Meets construction tension and installation fixation requirements | | | Tear strength | ≥ 0.5 kN/m | GB/T 529/ASTM D624 | Prevent tearing during construction | | | Weather resistance (artificial accelerated aging for 1000h) | Tensile strength retention rate ≥ 80%<br>Fracture elongation retention rate ≥ 70% | GB/T 16422.2/ASTM G154 | Suitable for outdoor or long-term use scenarios

5、 Environmental performance;
Harmful substance content | No formaldehyde, no benzene, no CFC/HCFCs<br>Heavy metal content complies with RoHS directive | GB 18583/RoHS 2.0 | Export to the EU must comply with RoHS; Domestic green buildings need to provide formaldehyde free testing reports | | | recyclability | recyclable materials | ISO 14001 | in compliance with environmental protection project requirements.  
 

6、 Special Performance (Customized)
Aluminum foil composite layer thickness | 0.05~0.1 mm (aluminum foil) | Manufacturer's standard | Aluminum foil composite enhances heat reflection and moisture resistance, and the thermal conductivity can be further reduced by 5%~10% | | | Self adhesive backing peel strength | ≥ 0.3 N/mm | GB/T 2792/ASTM D3330 | Self adhesive construction is convenient, and the peel strength ensures a firm fit