Overheated flasks during burnout

Follow recommended burnout cycle.
Ensure furnace ramp does NOT exceed 250ºC/Hr.
Ensure 1st stage burnout does NOT exceed 240ºC and is held for 4.5 hours minimum. If problem still occurs, increase hold time.

Dust on waxes or trees

Ensure once waxes or wax trees are made, they are stored in a dry, clean and dust-free atmosphere. Do NOT store waxes or trees in a dusty environment or investing room.

Metal temperature incorrect

Reduce or increase metal temperature (see burnout section).

Rough waxes

Ensure excessive talc or release agent is not used, as this will produce rough waxes and therefore rough castings.

Flask burns out too quickly

Do NOT burn out before minimum of 90 minutes after investment.

Under or over-worked

Follow the recommended mixing instructions (see product pages).

Steam de-waxed for too long

Steam de-wax for a maximum of 60 minutes at atmospheric pressure. If steam de-waxed for longer than 90 minutes, the steam will start to erode the surface of the mould. Do NOT steam de-wax in a sealed container.