Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

----- Original Message -----
From: "zfred68" <zfred68@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, October 30, 2005 8:39 AM
Subject: [Homebrew_PCBs] Electrolube PRP not working


>I just used a whole can of PRP200 without any decent result, it seems
> this stuff is now absolute rubbish?
>
> The thing is I had recently used up an old can of PRA200H RP50, it was
> many many years old and was giving me rather perfect results, so i am
> not new to this stuff........
>
> The new PRPs, well actually dated 2003, got cheap because supposedly
> out of date, I didn't think it was a problem,thinking er what I had
> already is ages old and still working..........
>
> When I spray it on the copper, it bubbles up, and leaves patches
> without resist, seems the solvent is stuffed. My cleaning method is 3M
> abrasive matt, followed by a powder cleaner - Ajax. ,wash under tap,
> then dry with paper tissue.
>
> what makes me mad is this stuff is not cheap new, and i still had paid
> $20 for 2 cans.......

I had the same problem with the new stuff, the old stuff was OK. Electrolube
told me that they changed the material, I don't know why.

Leon

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