Curing by Chamber (Precure). The Precure Tread system is a process by which a tread
pattern is fully cured or vulcanized into the tread by using a press.
The tread is then vulcanized onto a tire casing using a bonding layer
of uncured natural rubber. The tyre is vulcanized with heat, time and
pressure in a curing chamber that bonds the tread to the casing. This
thin layer called precure cushion or bonding gum. Cold retreading was
then a term used to describe a process in which the final curing of
retread is done at temperature lower than 115c.
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