On Tue, 16 Nov 2004 21:15:38 +0000 (GMT), "Dave Liquorice"
wrote:

On Tue, 16 Nov 2004 19:26:46 -0000, Roger wrote:

The manufacturers recommend a trimming knife or a fine tooth saw,
does anyone have any experience of cutting this stuff.

25mm bonded to 9mm plasterboard snaps very easyly. Not tried it on
50mm unbonded but I suspect a good deepish cut from a craft knife then
putting the cut above a batten and pushing down would have the desired
effect. A bit like cutting glass.

Sadly not quite... The thicker boards have glass fibre threads in them
for strength. You can snap to an extent but unless you cut almost
through then no. The threads will pull out lumps and make a mess of
the edges.


I'd rather not use a saw because of the toxic dust.

Is it toxic or just an irritant? Can't be worse than the dust that
comes off fibre glass. As has alreday been said a vacum running will
stop dust levels getting too high, very good at keeping dust levels to
light mist instead of thick fog when sanding filler/plaster down...


--

..andy

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