Base material is one of the key points that related to final PCB quality. The quality of base material is subject to it’s price.

Here are there are many unknown or local brand material with low prices but unstable quality(such as delamination for multilayer PCB assembly and voltage leakage for final functional PCB).

Weller: No matter that it is prototype PCB or mass production,unless customer’s prices pressure to use poor quality base material; We only use internationally known base material such as Shengyi, ITEQ,Nanya,Kingboard,Rogers, etc.