Norafin's polyester based technical nonwovens allow the optimization of composites manufactured by the pultrusion process:
A surfacingveil is a vital component in a pultruded profile.
Pultrusion is a dynamic process whereby the reinforcement, having passed through a resin bath, is pulled through a heated die to produce a composite component of constant profile. As the process is dynamic, the inclusion of a surfacing veil is the optimum method used to impart a wide range of properties to the surface of the pultruded profile.
A correct selection of a surfacing veil can bring the following benefits to a pultruded component:
In addition to the enhanced properties of the pultruded profile, a synthetic surfacing veil such as those manufactured by Norafin also improves the pultrusion process itself giving:
The range of spunlaced nonwoven products from Norafin includes:
The use of a surfacing veil with isotropic properties also gives a significant degree of hoop strength to pultruded profiles such as tubes, 'L' sections and 'U' channels where the main reinforcement is unidirectional.
Spunlaced surfacing veils for pultrusion are available at a range of base weights, pre-slit to customer specified widths and lengths or as full rolls for customer slitting.