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Subject: Re: [Homebrew_PCBs] Re: Exposing Photoresist and Some Boards I have built

From: Larry Geib <LJGeib@...>
Date: 2008-02-19

Are you in the US?

Arm and Hammer still sells it. It's in my local Safeway in the
detergent aisle.

Larry


On Feb 18, 2008, at 1:47 PM, Philip Pemberton wrote:

> Leon wrote:
>> 'Washing soda' (sodium carbonate) used to be very common in the
>> UK, it was
>> used with soap for washing clothes before detergents were invented.
>
> So I've been told... I've been trying to track some down for ages
> (it's
> apparently good for neutralising ferric chloride), but nobody seems
> to sell it
> any more.