As already mentioned the hull is coated by stitched biaxial fibreglass of 600 g/m² weight.
These non-crimp fabric combine two layers of unidirectional fibres ±45° which are stitched together using a light thread. The result is an engineered biaxial fabric with predictable, repeatable properties.
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| The pre-cut fabric is spread on the surface prewetted with epoxy. One must be very careful to avoid fiber breakage. |
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| After the fabric is laid-out, it is impregnated with epoxy. About 0.7 kg/m² epoxy is required. |
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| The epoxy is spread by using a "Fliesengummi" (Tilers use it for grouting their tiles) |
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| Finally comes a layer peel-ply (Release Fabric) on the fresh FRP layer. Peel-ply, is a tough, finely woven nylon fabric treated with a release agent. It is used to protect the lay-up from contamination. Another advantage: It is no sanding for next layer required. |
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| Right: naked epoxidized fibreglass Left: epoxidized fibreglass covered by peel-ply |
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