

REF |
Type |
Copper thickness |
Single / double sided |
Dimensions* |
COLCT0053 |
FR4 |
35 µm |
Single |
DIN A4 |
COLCT0054 |
FR4 |
35 µm |
Double |
DIN A4 |
COLCT0055 |
FR4 |
35 µm |
Single |
DIN A3 |
COLCT0056 |
FR4 |
35 µm |
Double |
DIN A3 |
COLCT0050 |
Board of 2 mm thickness |
DIN A4 |
COLCT0051 |
Board of 2 mm thickness |
DIN A3 |
Underlay material is used to raise the copper board off the machined table so that when holes are drilled the table is not damaged. It is very flat material and has a smooth surface with a white, very thin, hard coating on both sides to meet the highest demands for drilling quality.