Epoxy-based fiber sizing

Michelman (Cincinnati, OH, US) has introduced Hydrosize EP876, a high molecular weight epoxy-based fiber sizing for PBT (polybutylene terephthalate) and thermoset composite manufacturing applications.

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Michelman (Cincinnati, OH, US) has introduced Hydrosize EP876, a high molecular weight epoxy-based fiber sizing for PBT (polybutylene terephthalate) and thermoset composite manufacturing applications. The new grade of Hydrosize can also be used as a binder in nonwoven applications. As a water-based, formaldehyde-free dispersion, Hydrosize EP876 is said to be environmentally friendly and eliminates the use of flammable solvents. It can be used with glass, carbon and natural fibers, produces good strand integrity and offers good chopping behavior. Michelman says Hydrosize EP876 also exhibits a natural tendency to be sticky, which makes it particularly effective as a binder.