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.