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Abhishek Singh
09/11/04 00:09
Read: 1056 times
Bilaspur
India


 
Msg Score: +2
 +2 Informative
#77245 - WEOT: Cheap Solutions For PCB making

Hi All,


For the ones who cant find the various ready made chemicals Required or get them on higher prices for Evaluation PCB making here are some preperations.

1. Eatch Resistant ink : substitute is Screen Printers PVC ink which is low cost and fast drying. Better Ask your screen printer to transfer the image onto copper clad board by screen printing.


2. Eatching Solution: you can use following preprations.

A. Ferric Chloride 75% W/V (stains clothings floor etc relatively slow)

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

3. Tinning Solution: sulphuric acid 15 Ml/L + Thiourea 13.4 gms/L + Tin Chloride 4 gms/L Aquaous Solution

4. Oxidation Protector:good Quality fast drying Transformer Insulation varnish.


Please consult all the things related to the chemicals before you use them and take care, follow safty rules otherwise accident may occur.

Abhishek

List of 17 messages in thread
TopicAuthorDate
WEOT: Cheap Solutions For PCB making        Abhishek Singh      09/11/04 00:09      
   Correction      Abhishek Singh      09/11/04 00:36      
   RE: WEOT: Cheap Solutions For PCB making      Steve M. Taylor      09/11/04 10:07      
      RE: WEOT: Cheap Solutions For PCB making      Terry Lingle      09/11/04 10:48      
         RE: WEOT: Cheap Solutions For PCB making      Abhishek Singh      09/11/04 11:16      
      RE: WEOT: Cheap Solutions For PCB making      Abhishek Singh      09/11/04 11:02      
   RE: WEOT: Cheap Solutions For PCB making      Vinod Kumar      09/12/04 12:34      
      RE: WEOT: Cheap Solutions For PCB making      Steve M. Taylor      09/12/04 12:44      
         RE: WEOT: Cheap Solutions Is it worth        Anil Gupta      09/12/04 23:41      
            RE: WEOT: Cheap Solutions Is it worth      Michael Karas      09/12/04 23:56      
               RE: WEOT: Cheap Solutions Is it worth      Joseph Hebert      09/13/04 00:16      
                  RE: WEOT: Cheap Solutions Is it worth      Michael Karas      09/13/04 01:31      
            RE: WEOT: Cheap Solutions Is it worth      Joseph Hebert      09/13/04 00:33      
               RE: WEOT: Cheap Solutions Is it worth      Abhishek Singh      09/13/04 00:56      
                  RE: WEOT: Cheap Solutions Is it worth      Joseph Hebert      09/13/04 01:21      
         RE: WEOT: Cheap Solutions For PCB making      Joseph Hebert      09/13/04 00:01      
            RE: WEOT: Cheap Solutions For PCB making      Steve M. Taylor      09/13/04 11:54      

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