For more than 30 years Spheretex has been committed to develop and produce core materials for various kinds of composite applications. The idea behind the products is combining thermoplastic microspheres and high-tensile fibres. These volumised core materials are an ideal solution for making light and long-term durable sandwich laminates.

Sphere.core® PSI with internal flow medium was developed to meet highest demands in RTM and VIP processes.

Sphere.core® PSI is characterized by excellent flow properties. The internal flow medium saves vacuum consumables and waste.

Sphere.core® PSI, combined with the required reinforcement, works perfectly with reusable silicon bags.