Homebrew PCBs

----- Original Message ----- 
From: "sm4rzw" <sm4rzw@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, April 25, 2006 10:52 AM
Subject: [Homebrew_PCBs] Re: Some toner transfer experiments


> --- In Homebrew_PCBs@yahoogroups.com, Lez <lez.briddon@...> wrote:
>> I'd love to understand how your doing it?
>>
>> Are you saying it works?
>>
>> It sounds like you are saying you apply glue to paper, then print,
>> iron on, then soak off, and the toner stays just like TT but less
>> rubbing?
>>
>>
>> I just tried a teflon flexible baking sheet, but its not smooth enough
>> the sheet has a weave and this makes a pattern in the transferred
>> toner, and it does not all come off the sheet, so one pcb will mark
>> the next, so no good.
>>
>
> Since I dont have the proper american words for some items, I'll try to
> explain instead. Yes, it works!  The easiest way would be to find
> paper, coated with that glue that gets sticky with moist, like licking
> on a stamp or closing an envelope. But since I couldn't find anywere to
> buy it, i make my own, by coating matte photo paper for inkjets with
> Gum arabique. That glue does not melt from the heat, but dissolve
> easily in water, leaving the toner on the copper without any rubbing.
> The problem I'm working on now is to get a smooth surface when coating,
> rubber scrape (for window cleaning) seems as a way to go.
> //Lars

Dextrin is the stuff you need, it's available from home-brewing shops. It's 
also used as an adhesive.

Leon