
Infusion
Construction
Infusion is a method of introducing catalyzed resin into a
pre-layout of dry material under vacuum. Dry fibers are
placed in mold, with core (Balsa or Foam). Which is then covered by a
special flow
cloth and a flexible vacuum bag, a high pressure vacuum is then applied and
a series of resin tubes draw the catalyzed resin into the part.
The result is a high quality method of production which produces results
repeatedly and consistently. It allows dimensional control and regularity of
weight and unlike a pre-impregnation process, infusion does not require special
materials storage conditions, nor an oven.
An economic and reproducible process, direct positioning of dry fibers is
easier and more precise than in traditional hand lay-up processes. It also
allows controlled placement of fiber direction, as it is not impeded by gel
times etc… The perfect control of the quantity of resin infused and the dry
placement cloth make it possible to obtain extremely homogeneous finished
parts.
The weight variation of the piece is very small (1 to 2% only), a
performance which is impossible to achieve with hand lamination.

Healthy working conditions:
Working with dry materials does away with
most exposure to resin & styrene, and does not require special protection,
masks, gloves etc... During infusion and
curing the styrene remains contained in the bag, thus reducing the emission
of VOC (Volatile Organic Compounds) to less than 10 ppm.


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