Sometimes the paper towels will have procesing oils on them.
Try a final rinse with ispropanol (rubbing) alcohol or acetone and let air
dry.
DO NOT use nail polish remover as it contains cosmetic oils.
Also, after the paper has ben removed, you might try rerunning the pcb
through the laminator with the release backing from a laser label, or "flash
fuse" the toner it with a hair dryer.
Mycroft2152
On Feb 10, 2008 4:18 PM, Chuck Kelsey <wb2edv@...> wrote:
> I picked up a new GBC 9" personal desktop laminator and tried some
> boards
> with no luck.
>
> I'm using a 4" x 6" board with 1 oz. copper and it has a thickness of
> 0.032". I clean it with a brillo pad and rinse thoroughly while wiping
> with
> a wet paper towel, then dry with a paper towel.
>
> The laser printer is a Lexmark 4039 10plus set at the darkest setting.
> Using
> the Pulsar toner transfer paper.
>
> The first attempt I ran the board (with the paper on the bottom) for 8
> passes in different directions. The laminator ready light had been on for
> 15-20 minutes before I began. I also pre-heated the board with a hair
> dryer.
>
> I dropped the board with the paper into a container of water and let it
> rest
> until the paper floated off on its own. Right away I could see pieces of
> black toner floating in the water as I lifted the paper out.
>
> My second attempt was done the same way, except I ran the board through 16
>
> times. Same problem - toner pieces floating around in the water.
>
> This is very discouraging and I'm at a loss. Anyone have any suggestions?
>
> Chuck
> WB2EDV
>
>
>
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