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Polyester resins for infusion and RTM

Polyester resins for making composite parts and moulds by vacuum infusion or RTM.

What to consider when choosing

Parts with a good surface finish and low-shrinkage moulds

Recapoli 955 INF-G combines low viscosity with a DCPD formulation for infusion and injection, producing high-fibre-content laminates. Crystic U904LVK30 covers infusion, light RTM and conventional RTM. Where shrinkage control matters for a part or mould, Crystic PD9551 incorporates a low-profile system specifically described for that role.

Selecting resin, reinforcement fibres and process

Compare the viscosity stated in the technical data sheet, filling time and cure with the part's size and flow path. Select glass fibres and vacuum materials as one system. For hand wetting of glass-fibre mat or fabrics, browse polyester hand-lay-up resins.