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

Green resins: Closer to maturity

As more players approach the market, R&D expands, but overall market growth in the composites arena is still slow but steady.
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.
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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.