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Chopped Strand Matt:
(Fibreglass matt.)
The most common of glass reinforcements, chopped
strand matt has strands of glass of similar lengths arranged
in a random compressed order to provide strength when combined
with resin. The glass matt is available in different
densities, the most common being, 300, 450 and 600 grams per
square metre. |
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Carbon Fibre:
Carbon fibre is one of the more expensive
reinforcement fabrics used in the reinforced plastics
industries. It provides an excellent weight to strength ratio
and is used in specialised fields such as custom racing boats
and paddle faces. It is rarely used for general-purpose
repairs. |
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Bi-axial:
Bi-Axial is a cloth that is of different
weights per square metre and as the name suggests has two (bi)
axils of fabric through it. These generally run at 45 degrees
to each other and provide an extremely strong and rigid plane.
This product has become a preferred product over woven rovings
as a strengthening layer. |
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Dynel:
Is a non-glass reinforcing fabric. It is used to
help provide a smooth reinforced finish on timber boats when
used with Epoxy resin. It is used principally as a finishing
layer, or a skin layer (just behind the gelcoat) for extra
strength without an unpleasant pattern “show through”.
Dynel conforms more easily to compound curves than
fibreglass. |
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Woven roving:
Woven roving uses continuous strands of
glass grouped together and woven through each other in a
checked pattern. It also comes in a variety of weights per
square metre, but is becoming less popular in the reinforced
plastics industry. The product provides a relatively smooth
finish and has recently seen Bi-axial fabric as a challenger
for providing a high strength layer in laminations. |
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Tissue:
Is an extremely light and thin fabric
generally used in the manufacture of moulds. It is generally
used as a barrier to help prevent chopped strand matt, or
chopped rovings from imprinting the tooling gel-coat used in
the manufacture of a mould. It is also used to help
provide a smoother texture on the topside of a
lamination. |
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Core mat :
Is a highly resin absorbent product used to
provide strength to moulds and projects without the need to
use vast layers of glass-reinforcements. The product is
extremely lightweight, but absorbs a high percentage of resin
to achieve an excellent weight to strength ratio. This feature
makes this product ideal to reinforce light panels against the
occasional occurrence of weight stress.
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