CPU-35-A/B
CPU-35-A/B
| PU Resin to
be Used in Tight-Sealing for PC Boards and Water-proof of Electrical Components PU密封材可使用在电子板防水防潮方面效果良好，尤其是在洗表机、手机、钓鱼用电子仪器等。 |
|
| Introduction | Featrues : |
| "PU sealing resin is a water-proof, Solution-endurable, insulated protective film made of quality PU resin. It is used in the prevention of humidity, germs, collision, corrosion prevention of parts loosening rusting, and insulation for PC boards and electrical components. |
|
| Physical Characteristics: 物性表 | ||
| Color 颜色 | Transparent 透明 | |
| Specific Gravity : | Resin | 1.02 |
| Hardener | 0.97 | |
| Viscosity | Resin | 200 CPS |
| (23 degree oC) | Hardener | 1050 CPS |
| Mixing ratio 混合比率 | 1:1 | |
| Time available, 23 degree oC | 20 minutes | |
| Hardening Time | 23 degree oC | |
| 3 hr or 80 | ||
| degree oC | ||
| 20 minutes | ||
| Impact endurability ( MIL-1-16923D ) | -55~105 | |
| degree oC | ||
| Weight increase in water | less than 0.1% | |
| Weight loss rate ( 125 degree oC x 168hrs ) | less than 0.5% | |
| Heat conductivity ( Cal. cm/sec. cm2 , degree oC ) | 4.2 x 10-4 | |
| Hardness. Shore A 硬度 | 22A | |
| Cubic resistance CHM/CM | 3.2 x 1013 | |
| Depression factor, 100,000 cycles | 0.03 | |
| Insulation constant, 100,000 cycles | 4.05 | |
| Insulation strength, VPM | 415 | |
| Heat expansion factor, 23~125 degree oC | 2.2 x 10-4/degree oC | |
| 23~40 degree oC | 1.74 x 10-4/degree oC | |