Homebrew PCBs

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