Sekisui

The world's leader in LED materials, including Thermally Conductive PCB Substrate (KNDJ), Encapsulating Material (SLS), and High Reliability photo resist (SCR). Having been in the material business since 1947, this Japan based company has grown in size and capability and is one of the worlds leaders in the PCB Pre-preg field, amongst many other frontiers in the modern day and age.