Homebrew PCBs

----- Original Message ----- 
From: "sbdwag" <sbdwag@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, March 02, 2006 2:36 PM
Subject: [Homebrew_PCBs] Double sided vs single sided fr4


> Im getting ready to order some double sided FR-4 from abcfab and have
> a question.
>
> Right now I do not plan on making very many double sided boards. Its
> more difficult to find single sided pcbs and was wonder how I could
> cover the top side without putting a resist layer on it before I etch.
> Is there a cheap paint that I could spray on it and remove after etching.
>
> Any other advantages or disadvantages to having double sided vs single
> sided pcbs when you are only using one side.

Cellulose paint works quite well as a resist, as does sticky tape, although 
the latter sometimes allows some seepage under the edges.

Leon