Streamoulding® test results

Water Foaming of PVC - Loughborough University Report

The results of a study sponsored by The R & D Factory and undertaken by Loughborough University on the Streamoulding of PVC have now been published.

Streamoulding strength test results

Materials: Polypropylene

The Welsh Composite Centre at Swansea University have completed some independent strength tests on samples produced using our water foaming process - Streamoulding. This is a question we are often asked-whether the foamed mouldings are as strong as solid mouldings

Energy & cycle time savings chart

Materials: Polypropylene

The addition of a very small amount of water during Streamoulding reduces the viscosity of the polymelt and as a result reduces the cycle time as well as lowering the load on the moulding machine during injection. This generates energy savings in addition to material savings from weight reductions in the moulded parts.

This table shows how the additional savings are related to various weight reductions which can be set and controlled through the Streamoulding process.

Cell structure of Streamoulded plastic

Materials: Polystyrene

The sample has a wall section of 25 x 15mm, you can clearly see the surface skin and foamed inner section.

These close up photographs have been provided by the Welsh Composites Centre, part of Swansea University who have put together test data relating to samples produced using different streamoulding process parameters. In all cases the material used here the material used in polystyrene crystal.