Resin Systems
100 Series—polyester resin with excellent wet-out for molding and
dry filament winding
200 Series—polyester resin with added vinyl for higher tensile strength and better performance in pre-forming
300 Series—non-soluble in styrene resin for the wet-strength required in pultrusion and wet filament winding
400 Series—epoxy compatible binder for high-performance composites
500 Series—phenolic binder for fire resistant composites
Pre-forming
If you preform your parts, try using our veils with a binder just for such
applications. It will give you added adhesion in the first stages of the
preform process. The binder properties allow for the lower temperatures
of preforming to bond your reinforcing material to our veils. This improves
your handling.
Pultrusion
Pultrusion is a method of manufacture that places great stress on the raw
materials. Pulling a veil through a resin bath and a die to uniform size
and shape challenges the strength and resilience of most veils. SI’s
pultrudable veil will withstand those stresses while bringing resin to
the surface for a smooth, corrosion resistant part.
High performance composites
In today’s composite market new and lighter products are a norm. With
the advancement of carbon fibers with epoxy and vinyl resins, a compatible
veil was needed. SI produces a veil for that purpose. Our epoxy compatible
veils out performs other nonspecialized veils. Ours will eliminate pinholes
and surface delamination so commonly seen in carbon applications. Our clear “A” glass
fibers will be virtually invisible in a laminate so that the carbon fibers
can be seen. All of our mats can be made with epoxy compatible binder. If
you have a complex mold or are winding, we have a veil for you to try.
Phenolic Applications
Phenolics have special surface needs. The use of phenolics in high temperature
and low smoke applications has made it difficult to incorporate tradition
synthetic or polyester glass fiber veils. SI is developing a veil for use
in this market for molding and pultrusion. Our veil will improve the surface
of a phenolic part without the risk of reducing fire and smoke ratings.
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