Light RTM
Precision, performance, and sustainability
Light RTM combines precision, performance, and sustainability, making it a valuable technique for the prototyping and production of advanced composite parts.
Light RTM (Resin Transfer Moulding) is a closed-mould process used to manufacture high-quality composite parts. The technique is particularly well-suited for applications requiring lightweight yet strong structures, commonly used in industries such as automotive, aerospace, construction, and marine.
In this process, dry reinforcement materials (such as textile preforms) are placed inside a two-part mould. Once sealed, resin is injected under vacuum pressure into the mould cavity, impregnating the reinforcement materials. After curing, the mould is opened, and the finished composite part is removed.
Advantages
- High-quality surface finish on both sides of the part
- Good fibre-to-resin ratio for strong and lightweight structures
- Reduced emissions compared to open-mould processes
- More consistent results due to controlled resin flow and pressure
- Suitable for medium-volume production
- Compatible with complex shapes and large components
- Enables use of textile preforms, including 2D/3D woven, braided, or embroidered reinforcements
Materials Used:
Reinforcement fibres:
- Natural fibres (flax, hemp, jute)
- Synthetic fibres (polyester, polypropylene)
- High-performance fibres (carbon, glass, basalt)
Resins:
- Epoxy
- Polyester
- Vinyl ester
- Bio-based resins (for sustainable composites)
