13 Dec
2003
13 Dec
'03
9:57 a.m.
I=E2=80=99m left to wonder of these rubber parts could
be recast. I have =
had success
casting rubber
using Devcon flexane. It=E2=80=99s a 2 part mix with extremely low shrink=
age. The
medium =E2=80=9C80=E2=80=9D liquid
has a companion softener flex-add which allow one to adjust the hardness =
of
the resulting rubber.
There's a reasonable book entitled 'How to cast small metal and rubber
parts' that might be useful here.
Does anyone know if this Devcon Flexane is available in the UK, and if
so, where? I've read about it, and it looks suitable for making rollers, etc.
=20
I have used Freeman machinable wax to make molds with good results. I wou=
ld
I would rather make a metal mould, it should be longer lasting for one
thing. Not a difficult machinng job either...
frozen and ground after casting. (Not that I would
look forward to liquid
nitrogen all over my south bend lathe,
I'd be more worried about all the water condensing out of the air onto
the lathe and cuasing rusting...
-tony