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Stobicast L781 PU灌封胶
一.产品概述:
L781为一款双组份PU灌封胶,产地德国.该产品具有良好抗冷热冲击性,机械性能,防水,绝缘,防腐蚀等性能.符合德国VDE安规标准,符合欧盟2002/95/EGROHS标准,广泛应用于变压器,电子开关,PCBA,LED灯具及各类高低压电子元器件的灌封.
二.产品物理特性:
密度:
主剂A 固化剂B 混和密度
1.46 1.22 1.42
粘度:
3000 100 1200-1300
比例:
100 17
二.产品参数:
Shore hardness A 90 / D 40 DIN EN ISO 868
Tensile strength 6 N/mm2 DIN 53455
Elongation at break 90 %
Notched impact strength 14 kJ/m2 DIN 53453
Impact strength 37 kJ/m2 DIN 53453
Flammability (UL file E 302173) V 0 UL 94 (3 mm)
Glow wire ignition temperature (GWIT) 850 °C / 3,0 IEC 60695-2-13
Glow wire flammability index (GWFI) 850 °C / 3,0 IEC 60695-2-12
Glass transition temperature 0°C DSC
Insulation class B (130°C) IEC 85
Relative temperature index (RTI) 130 °C UL 746 B
Water absorption 36 mg in 24 h
65 mg in 96 h
DIN 53495
Heat conductivity 0,7 W/Km DIN 52612
Coefficient of linear expansion 122 · 10-6 K-1 DIN 53752
Dielectric strength 26 kV/mm IEC 243
Surface resistance 1014 W IEC 93
Volume resistance at 20 °C 1014 W cm IEC 93
Tracking resistance CTI>600 V IEC 112
Electrolytic corrosion A / 1.2 VDE 0307
