T RTM and HP RTM | Resin transfer mouldin process

High Pressure Resin Transfer Moulding and Thermoplastic Resin Transfer Moulding

The Process

HP-RTM is the natural evolution of the traditional low pressure RTM. A fully cured composite part can be obtained in a time ranging from less than 2 to 5 minutes, depending on the selected chemical and on the process parameters.
The process consists in the injection of a multi-component mixed thermosetting or thermoplastic matrix into a closed mould in which a dry reinforcement preform has been previously placed, and where vacuum has been applied.
After the polymerization time, the mould is opened and the finished part is extracted.

Features and advantages

These processes allow to obtain high performance structural parts by directly combining reinforcement and matrix. The in-line high pressure impregnation allows producers to minimize the raw material costs.
This process is perfectly fit with complex 3D geometries and long fiber reinforcement.

Automotive

Aerospace