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.
(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(%).