Homebrew PCBs

This was discussed a while ago.  Several people, including myself, 
tried coating paper with poor results.  I recall some one claiming 
that we hadn't spent enough time on it but we haven't heard from him 
since.  It would be really great if there was a way to do it.  My 
problem was that the paper wrinkled and I couldn't figure out how to 
get it smooth enough to feed through a toner/fuser assembly (laser 
printer or copier).

Maybe dextrin coated paper is available in bulk...  The dyna-art 
stuff is just too expensive, IMO.

There may be other water soluable substances that are coated on paper 
suitable for laser printing.  I looked around a bit with no results 
but barely scratched the surface - there are a lot of paper products 
out there.

--- In Homebrew_PCBs@yahoogroups.com, "grantfair2001" 
<grant.fair@s...> wrote:
> I use Dyna-Art paper (now Pulsar) for toner transfer and find it is
> excellent. Briefly (1 minute) soaking in water and it slides right 
off
> and away from the toner, no effort, and no paper left behind.
> 
> I notice from information from the manufacturer that the "secret"
> ingredient on this paper is Dextrin, a starch product used in
> applications such as wallpaper paste, bookbinding, or gummed tape. 
> 
> I tested the Dextrin on the Dyna-Art paper with iodine and it turned
> purple/blue. This means that this is amylodextrin, which gives a 
blue
> color with iodine. 
> 
> See:
> 
> http://palimpsest.stanford.edu/don/dt/dt1011.html
> 
> Some forms of Dextrin are readily available on the internet, for
> example it is used in amateur rocket making and is available from
> United Nuclear:
> 
> http://www.unitednuclear.com/
> 
> or Post Apple Scientific
> 
> http://www.postapplescientific.com/
> 
> I would like to try to coat some paper such as the laser/inkjet
> printer papers with Dextrin to enhance release from the tranferred
> toner. Any ideas how to do this? I have thought of making a solution
> of water and Dextrin and spraying a coating on the paper and letting
> it dry.
> 
> Grant