Homebrew PCBs

On Sun, 15 May 2005 18:57:52 -0400, Alan King <alan@...> wrote:

>
>   And while checking the hardware store and getting some high temp RTV  
> (only
> black so it'll be a pita probably to see), there was some really clear  
> acrylic
> sealant listed as super elastic so I got some to try.  Flammable  
> solvents so
> would take some good drying and flame testing to make sure it won't  
> result in
> printer immolation, but it feels very good in the tube, worth a try  
> could be
> better than silicone.  If it's pliant and adheres to copper, aluminum,  
> crome,
> glass, and many others as they say it might be very good.  Same pricing  
> level as
> the high temp, little bit nastier solvents but worth a look.  Ah  
> toluene, good
> old model airplane glue smell.  Excellent feel and about perfect  
> tackiness to a
> small smear, time for some testing.


I agree silicone does not melt. not even if it burns.
I assume you are right, there are 2 liquids present. one beeing water or  
acid, the other beeing some more oily liquid, maybe it is silicone oil, i  
have read RTV silicone can be made more liquid with silicone oil (not sure  
if this is true).
It would then be like a frying pan, the hot oil and water.

Also note soetimes i hear sizzling with a normal paper/toner/PCB transfer,  
but much much less. I expect a tiny amount of water or something.


I would not attept the acrylic, because these _DO_ melt, in the fuser too  
i would expect.

ST