Homebrew PCBs

Hi all,

I've been doing the toner transfer, or the presensitized boards, or using the marker method to create boards.  I'm looking to experiment at trying something new but...

This may seem like an odd question, but what coatings can be used as an etch resist?  Basically, I'm looking for something I can coat the board with  and remove where I want to etch.  Preferrably something that can be removed easily with the right "stuff" (whether it be chemical or mechanical) but not by the etchant.

I have an experiment I would like to try, but I really don't know what to use to coat the boards with to attempt my experiment.

Thanks in advance!!

-Tony

[Non-text portions of this message have been removed]

----- Original Message ----- 

From: "Tony Harris" <kg4wfx@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, July 09, 2006 10:44 PM
Subject: [Homebrew_PCBs] materials that can be used as etch resist...?


> Hi all,
>
> I've been doing the toner transfer, or the presensitized boards, or using 
> the marker method to create boards.  I'm looking to experiment at trying 
> something new but...
>
> This may seem like an odd question, but what coatings can be used as an 
> etch resist?  Basically, I'm looking for something I can coat the board 
> with  and remove where I want to etch.  Preferrably something that can be 
> removed easily with the right "stuff" (whether it be chemical or 
> mechanical) but not by the etchant.
>
> I have an experiment I would like to try, but I really don't know what to 
> use to coat the boards with to attempt my experiment.

Cellulose paint works well.

Leon

--- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" <leon.heller@...> 
wrote:
ith to attempt my experiment.
> 
> Cellulose paint works well.
> 
> Leon
>

Cellulose paint?  What's that?  Where can I get something like that?

-Tony

I recently stumbled across this page when looking for something else: 
"Ecoresist" from Camnitzer
<http://www.studio-camnitzer.com/ecoresist_ann.htm>  .
The last paragraph tells where to get some to work with.  If it's truly
comparable to the Kodak Photoresist (KPR) I recall working with many
incarnations ago (early 1970's) it only takes a couple of drops to
sensitize a typical PCB, so 1/2 pint should keep a typical hobbyist
going for a year or two.

--- In Homebrew_PCBs@yahoogroups.com, "Tony Harris" <kg4wfx@...> wrote:
>
> Hi all,
>
> I've been doing the toner transfer, or the presensitized boards, or
using the marker method to create boards.  I'm looking to experiment at
trying something new but...
>
> This may seem like an odd question, but what coatings can be used as
an etch resist?  Basically, I'm looking for something I can coat the
board with  and remove where I want to etch.  Preferrably something that
can be removed easily with the right "stuff" (whether it be chemical or
mechanical) but not by the etchant.
>
> I have an experiment I would like to try, but I really don't know what
to use to coat the boards with to attempt my experiment.
>
> Thanks in advance!!
>
> -Tony



[Non-text portions of this message have been removed]

----- Original Message ----- 

From: "Tony H" <kg4wfx@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, July 09, 2006 11:05 PM
Subject: [Homebrew_PCBs] Re: materials that can be used as etch resist...?


> --- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" <leon.heller@...> 
> wrote:
> ith to attempt my experiment.
>> 
>> Cellulose paint works well.
>> 
>> Leon
>>
> 
> Cellulose paint?  What's that?  Where can I get something like that?

Car accessory shops.

Leon