In message , Andrew Mawson
writes
"Tim Lamb" wrote in message
.. .

In message , Thomas Prufer
writes
On Fri, 25 Nov 2011 22:05:01 +0000, Tim Lamb
wrote:

How do I stop the foam sticking to the plywood? And, how long does it
take before full expansion is reached?

Polyethylene film. Bin liner, whatever. Peels off the foam a treat.

Yes.

Cling film was suggested as well.

On realising how long the cure/full expansion time is I decided to
fall back to the *trim off the surplus* method.

regards


Tim, for trimming when hardened, a 12" hacksaw blade with a handle made
from gaffa tape wrapped round one end works well.

There is already one in the rule pocket of my overalls:-)

regards
--
Tim Lamb