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Calgel and Colour Calgel cures
when Ultra Violet light comes into contact with the Photo Initiator in
the gel.
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If the layer of Calgel applied to
the nail is too thin, then there will NOT be enough Photo Initiator in
the film to complete the curing process.
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This explains why Calgel (clear and
colour) will not cure - no matter how long you leave the nails in the curing
lamp - the Calgel application is too thin!
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The opposite situation only occurs
with Colour Calgel. When the film thickness is too thick, the Ultra Violet
light can not reach all the way through the Colour Calgel and will only
cure the top layer, leaving the gel beneath uncured - no matter how long
you leave the nails in the curing lamp - the application is too thick!
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Under these circumstances the Colour
Calgel will form a cured top shell (which may wrinkle) and the underneath
layer will remain uncured or partially cured (depending upon the penetration
of the U.V. light through the gel layer. This will obviously lead to lack
of adhesion and lifting problems.
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Colour Calgel MUST be translucent
to a degree, to allow through penetration of the U.V. light for correct
curing of the gel. Therefore when a solid colour is required, two or more
applications will be needed to achieve this.
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