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???
09/11/04 16:07
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#77252 - RE: WEOT: Cheap Solutions For PCB making
Responding to: ???'s previous message
Abhishek Singh wrote:
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A. Ferric Chloride 75% W/V (stains clothings floor etc relatively slow)


Please quantify "slow" - hot FC will shift a 100 x 150mm board in under 5 minutes. FC also seems to go on for a long time.


B. 1 Part Hydrogen Peroxide 50% + 1 Part Conc. Hydrochoric Acid + 4 parts water.(very fast).


Goes "off" rapidly - the peroxide breaks down.

Steve




List of 17 messages in thread
TopicAuthorDate
WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
   Correction            01/01/70 00:00      
   RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
      RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
         RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
      RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
   RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
      RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
         RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
            RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
               RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
                  RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
            RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
               RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
                  RE: WEOT: Cheap Solutions Is it worth            01/01/70 00:00      
         RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      
            RE: WEOT: Cheap Solutions For PCB making            01/01/70 00:00      

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