Alkyd three part NO BAKE system is most widely
used in India today. It is supplied in 3 parts commonly known as Part A
(Binder), Part B (Accelerator) & Part C (Hardener). Part B controls
the speed of curing. The percentage used depends on the requirement of
each foundry. To decrease the setting time the percentage of Part B should
be increased. Use of 1% Iron Oxide considerably improves the hot strength
This system has excellent collapsibility. It can be used with all types
of sand. The sand must be dry and free of clay. Water base washes are recommended
for better surface finish.Sand can be easily reclaimed.
A
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