Horgen, Switzerland – Dow and Magnum Venus Products (MVP) have introduced new polyurethane-enabled chemistry for closed moulding. The Fast Flow Light RTM process uses a three-component injection system, and increases part production by decreasing injection times.
The new method combines MVP’s flex moulding process and light resin transfer moulding. Collapsible resin channels give faster resin flow. The Fast Flow injection system was designed for larger moulds, while maintaining high reactivity and reducing the curing time. It is particularly appropriate for transportation applications.
‘Our Fast Flow Light RTM process draws from years of experience as a leader in closed moulding and blends techniques to deliver faster, more efficient part production,’ said Joan Tracy, MVP’s director of international sales. ‘The process was brought about by the need to meet faster cure times for large parts using high viscosity resins such as fire retardant materials.’
The PU system used in the process is 20–25% bio-based. The high toughness of the PU means less material is needed to reach the same mechanical properties as with conventional materials. This allows more durable, longer-lasting and lighter vehicle components to be made.
This next-generation Light RTM is the result of a collaboration between the two companies. Light RTM is a more efficient and cost-effective alternative to traditional RTM or closed moulding processes, the companies said, because of the minimal tooling structure required and material efficiencies.
‘Our novel polyurethane systems solution provides superior aesthetic properties and better industrial hygiene profile vs incumbent resins in use”, said Francesca Pignagnoli, Dow Polyurethanes’ commercial director for industrial markets in Europe.