you could invest into a selective coating robot ? You will very rapidly get ROI, a controlled thickness and save time to protect areas which are not to be coated.

Other comment : be careful with the drying time. testing a board where coating is not totally dry will give unreliable results.

ME Magnin

FIRSTEC SA
Rue du Grand Pré 70
CH 1211 Genève 2

Tél. : +41(0)22 918 36 85
Fax : +41(0)22 918 36 93
mailto:[log in to unmask]
http://www.firstec.ch

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ong Seet Leng
Sent: vendredi, 24. janvier 2003 03:51
To: [log in to unmask]
Subject: [TN] ADVISE NEEDED

Morning Technetters,
Advise needed. We used to use dipped in method using a conformal coating machine but as the latex used to cover the forbidden area need at least a few hours to cure, we cannot afford the time. Due to the extremely tight schedule given to us, we have engineers sending in assembled boards in the morning and expect us to perform miracles and have them ready before lunch.
We are now using the hand brush method but as mentioned, due to the extremely tight schedule, is there any way to measure the coating thickness without say, measure assembled board before coat, after that coat one side-measure again, before coat the other side & measure again in order to get the individual side coating thickness?
We may have used the wrong approach and I desperately need some advise from you guys and gals. More over, should we revert back to dip in method, how are one going to measure the coating thickness of one side and then protected it before proceed to the un-coated side? Any suggestions is greatly appriciated.
Regards
S L Ong ---------------------------------------------------
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