The two component polyurethane compound described in this data sheet is specifically designed for the encapsulation by casting of completed circuit boards. When applied in thin layers, < 0.01â€� it acts as an adhesive and provides excellent thermal contact between dissimilar materials such as alumina and aluminum. The cured material meets the flammability requirements of UL 94, V-O at thickness of 0.125 in. and greater (UL File Number E116296) and provides long term circuit protection from -55âºC. to 125âºC., and allows dissipation of heat generated by encapsulated parts. The material bonds well to most metals, ceramics and plastics as well as to epoxy and paper phenolic circuit boards material. The cured material allows repair by cutting away material in the area of the affected component, replacing the component and repotting. Some of the important properties of PTU-46201 are highlighted below:
LOW SHRINKAGE DURING CURE
EXCELLENT FLEXIBILITY AT LOW AND HIGH TEMPERATURE
EXCELLENT FLOW BEFORE AND DURING CURE
SMOOTH SURFACE AFTER CURE
EXCELLENT HEAT RESISTANCE
ROOM TEMPERATURE REPAIRABILITY
EXCELLENT ADHESION TO MOST SUBSTRATES WITHOUT PRIMERS
FLAME RETARDANT
HIGH THERMAL CONDUCTIVITY
EXCELLENT HUMIDITY RESISTANCE
ANTISTATIC
The two component polyurethane compound described in this data sheet is specifically designed for the encapsulation by casting of completed circuit boards. When applied in thin layers, < 0.01� it acts as an adhesive and provides excellent thermal contact between dissimilar materials such as alumina and aluminum. The cured material meets the flammability requirements of UL 94, V-O at thickness of 0.125 in. and greater (UL File Number E116296) and provides long term circuit protection from -55ºC. to 125ºC., and allows dissipation of heat generated by encapsulated parts. The material bonds well to most metals, ceramics and plastics as well as to epoxy and paper phenolic circuit boards material. The cured material allows repair by cutting away material in the area of the affected component, replacing the component and repotting. Some of the important properties of PTU-46201 are highlighted below:
- LOW SHRINKAGE DURING CURE
- EXCELLENT FLEXIBILITY AT LOW AND HIGH TEMPERATURE
- EXCELLENT FLOW BEFORE AND DURING CURE
- SMOOTH SURFACE AFTER CURE
- EXCELLENT HEAT RESISTANCE
- ROOM TEMPERATURE REPAIRABILITY
- EXCELLENT ADHESION TO MOST SUBSTRATES WITHOUT PRIMERS
- FLAME RETARDANT
- HIGH THERMAL CONDUCTIVITY
- EXCELLENT HUMIDITY RESISTANCE
- ANTISTATIC
