> Markus say that he will give the full documentations if we send an
> email to him, but the email is not exist anymore. so can you help me
> with my problems?
>
Markus Zingg documented his achievements here. Just read his past
messages. But if you are impatient
http://tech.groups.yahoo.com/group/Homebrew_PCBs/message/19989
The chemistry is bought from a known European supplier. Manuals and MSDS
off the same chemistry are online from other supplier
http://www.megauk.com/datasheets/5052%
20Data_Sheet_ABC_CHEMICALS_INST.(Oct.2009).pdf
http://www.megauk.com/datasheets/4107_MSDS_ABC_complete_set(2009).pdf
We all assume that you know how PTH works and that you have an cnc
router and experienced skills in dryfilm or LPI resists and etchants,
and everything related.