Thank you for the reply. Do you use pnp? I normally use the steel
pads with the soap in them, like a SOS off-brand. I have not tried
acetone yet. I tried an iron first because this is how I always do
PCB traces with perfect traces. That did not work. The I tried a
vacuum heat press 2 times without any luck. That gets in 100% flat
but still is not allowing a full transfer. It is blotchy and only
doing about 1 inch areas with no area having a large portion of
correct transfer.
I see that you are using brass. Have you tried aluminum? And do you
think that it needs to be a certain type of aluminum? I am trying a
8x16in size which is taking 2 sheets of pnp for each attempt.
paul.
On Aug 12, 2009, at 7:01 PM, peter foti wrote:
> Make sure the panel is really clean. I use an ultrafine scotchbrite
> pad (the gray one) wet with soapy water. I rub in one direction only
> (length-wise). Then I rinse with water, dry it , and give it a final
> wipe with acetone. Don't touch the surface from this point on. In
> addition to ironing, I also use a soft rubber brayer with a fair
> amount of pressure. Also make sure the panel edges are free from
> burrs. They'll keep the iron from making good contact with the panel.
>
>
>
>> Hi,
>> I am having a super hard time getting my pnp to go onto the AL
>> correctly. It keeps peeling up very badly. I have used the blue pnp
>> for years now without any issues making pcbs but I cannot get it to
>> work on panels. Is there any tips that you can share? Your LVCO
>> panel looks to be etched with good results.
>> paul.
>
>
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