Polyesters

Polyester is a thermosetting resin matrix system and among the most used in the composites industry. It's most often used in sheet molding compound, bulk molding compound and with glass fiber in industrial, construction, infrastructure and other applications.
Features

Styrene & cobalt: Headed for the exit?

Fair or not, styrene and cobalt are now considered harmful to humans. Here's an update on the impact this issue poses for the composites industry and what resin and additive manufacturers are doing about it.
Features

Styrene: Issues and implications

The facts (such as they are) behind the furor surrounding this vital crosslinking chemical’s listing in the 12th RoC.
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Transluscent polyester and gelcoat

Dilutec (Piracicaba, Brazil) has launched a crystal polyester resin and ISO NPG gelcoat system that ensures translucency to composites parts.