Haufler Composites stocks fillers such as milled carbon fibre, chopped carbon fibre, microballoons and cotton flock.
Fillers
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Fillers are added to resins to create adhesives or smoothing compounds. Resin shrinkage is reduced; strength and stiffness are increased compared to pure resin.
Milled carbon fibre is used as a filler for thermoset and thermoplastic products. It is used to increase strength and stiffness properties, as well as electrical and thermal conductivity. The main fibre length is 0.1- 0.35 mm. Chopped carbon fibre is available in lengths from 1 to 6 mm.
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Microballoons are very fine and lightweight, white hollow glass bubbles. They are very low density. Used as a filler in resins, they produce pastes that are easy to smooth and sand. The lightweight smoothing compound has higher compressive strength than the resin.
Cotton flock is used as a fibrous filler with epoxy resin to create structural adhesives. It produces light and thixotropic fillers, which are also used as a coupling layer in mould making.
see also chopped carbon fibres