PNU 46220 is an electronics grade; unfilled, room temperature fast curing; two-component polyurethane adhesive is designed for the adhesion and encapsulation of circuit boards, circuit board components and for screw-thread sealing. The cured materials provide long-term circuit protection and bond stability from -55°C to 100°C. PNU 46220 bonds well to most metals, ceramics and plastics as well as to epoxy and paper phenolic circuit boards. The clarity of PNU 46220 allows examination of all encapsulated components and circuit boards. PNU 46220 is available in self-mixing MixPac ® for field use and in plant applications.
- PNU 46220 polymer backbone provides excellent flexibility at low and high temperatures, UV and moisture resistance
- PNU 46220 has low shrinkage on curing
- PNU 46220 has excellent adhesion to most substrates without primers
- PNU-46220 is unaffected by soldering or cleaning processes
Because of the high reactivity, of the components of PNU 46220, it is recommended that PNU 46220 be used in the MixPac dispensers. See packing requirements.
TYPICAL PROPERTIES OF CURED PNU 46220
The properties set out below were determined following measurements carried out in the
laboratory over a small number of tests. They are values given by way of guidance, and do not constitute a guarantee. It will be for the user, in all cases, to carry out their own tests to determine whether the PNU 46220 resin can be used for the particular application the user has in mind.
PRECAUTIONS IN USE
Refer to the attached material safety data sheet.
PNU-46202 is available in two-part MixPac and as kits for meter mix systems. For part number and kit size information please contact Protavic America, Inc.