The main application for phenolic resin back-up boards is as the protective entry or back-up board while drilling or routing of flexible and/or rigid printed circuit boards (PCB).
※The heavy metal content of this product tested by the Environmental Affairs Department is in accordance with the National Standard. (Case Number: ET88D0181)
(1) The alphabet in condition indicates the kind of conditioning of specimen.
A: as received without conditioning.
C: conditioned in air under constant temperature and humidity.
D: immersed in water under constant temperature.
E: conditioned in air under constant temperature.
O: immersed in oil under constant temperature.
The first figure is the conditioning time(hours),the second figure is the conditioning temperature(℃) and the third figure is the conditioning relative humidity(%).