Homebrew PCBs

Another question how about Negative Iron On Transfers with following
electroplating
(first copper then an etch resistent metal) Are they using tin ?

What i am speculating about is that those little holes in the iron on
wont be as bad unless they are in between very tight spaces (gaps)
that would now be toner

Anyhow where would one get those electroplating substances, even if
using maybe photo transfer ?

Thanks

Tobias


On 4/17/05, Alan King <alan@...> wrote:
> 
> Bill Maxwell wrote:
> > After opening a tube of silicone for its first use, try storing the
> > remainder of the tube in the refrigerator.  I find it keeps for months.
> > Bill
> 
>   Same goes for most paints as well.
> 
>   For the neutral type guys look for the no odor variety.  Way more people buy
> it to not have to deal with the vinegar smell than are worried about a circuit
> board etc, so that's what it's usually marketed for..
> 
>   I don't think it's worth worrying about though, with a thin smear it's mostly
> gone in a few minutes.  Fairly sure the acid is basically gone when the smell
> is, its chemical action is what cures the silicone.  Bad for electronics from
> initial contact and trapped acid more than there's a whole lot of acid
> continuing to come from it..
> 
>   Pretty much has to be basically inert when dry, paints go over it with few if
> any having any problems.
> 
>   Making up 5-10 sheets myself here in just a few minutes, hope there's enough
> toner left in my printer.
> 
> Alan
> 
> 
> 
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
> 
> 
> 
> 
>