Pitstop epoxy not taking flash copper plate

[gschlachter]

I can't get the conductive epoxy to take the flash copper plate on pot metal.
I sandblasted the pot metal, filled pits with Pitstop, sanded with 600 wet sand, degreased in SP. Everything plates perfectly except the epoxy. Usual 1 amp/16 in2.

Maybe I need to flash copper first, then fill the pits, so the epoxy conducts with the pot metal better.

[tbreaden]

I have used this product and most of the time flash copper will not plate to it. I have had sucess plating it with acid copper. I belive plating it with the flash copper does not give enough amps. to plate it correctly. Todd

[KCV6]

Bit of advice based on the second part of your question. Yes, sand blast so there are no dark spots and lay on the flash copper. Then pit stop it and then Acid copper as tbreadon suggested. This should work.

Cheers

Mark

[gschlachter]

Got some tech support from Caswell on this. They recommended making a wand to direct the current to the Pitstop. This helps to direct the current to the epoxy. It helped somewhat but I think I will go to soldering pits instead since it works better. I don't have acid copper and don't really want to invest in it just to get Pitstop to work.