Acetone of course will also attack soldermask, so be careful. And 3M is
pretty good with application engineers, but don't get your hopes up.

Most of the time when I use VHB I get it on foam. 0.015" of foam allows you
to slip a razor in there to start cutting. Still very difficult.

Wayne Thayer

On Tue, Aug 11, 2020 at 3:25 AM HEAD James <[log in to unmask]> wrote:

> In one of our more esoteric recent PCB designs we've created a bare FR-4
> PCB with no solder mask, nor silkscreen, that's fixed to another PCB that
> has conventional epoxy solder mask and silkscreens using 3M Adhesive
> Transfer Tape 468MP.
>
> The end use is to have a permanent fixing that's very difficult to remove.
>
> You've probably guessed by now that under some circumstances the scientist
> who's developing this product needs to be remove it! He's been complaining
> he's getting blisters trying.
>
> I was wondering if anybody on Technet is already using and removing this
> tape from PCB surfaces and what solvents they may be using?
>
> Thank you.
>
> Regards,
>
> James
>
> James Head
> Magnetic Resonance
> Tubney Woods, ABINGDON, Oxon OX13 5QX
>
> Tel: +44 (0) 1865 393200
> [log in to unmask]<mailto:[log in to unmask]>
>
> www.oxfordinstruments.com<http://www.oxfordinstruments.com>
> [cid:[log in to unmask]]
>
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