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News

PU tooling system cures extremely quickly

Huntsman Advanced Materials (Duxford) : 11 March, 2015  (New Product)
Huntsman has announced a major tooling technology breakthrough - a new polyurethane resin system that cures extremely quickly and allows the production of high heat stable modelling, tooling and rapid prototyping boards. The availability for the first time of an effective, high temperature stable polyurethane will open up a world of new opportunities in a wide range of sectors including aerospace, automotive, marine and shipbuilding.
With a glass transition temperature (Tg) of 200C and higher, the new generation Vitrox EST system offers product designers, tooling manufacturers and mould-makers a viable polyurethane alternative to other thermoset-based tooling products – with a number of additional advantages. 
 
The fast cure makes it possible to significantly reduce demoulding and manufacturing cycle times. This can help increase productivity, reduce energy costs and cut carbon emissions. The system can be precisely formulated to suit specific requirements.
 
The high Tg of Vitrox EST mean a constant coefficient of thermal expansion (CTE) from room temperature to 200C. This enables the creation of products and tooling boards with improved long-term stability when exposed to high temperatures. Products and tooling boards made with the system also demonstrate better impact resistance and a good machinability.
 
Processing benefits include a long, tunable pot life (5-20 minutes) and a low viscosity. Furthermore, the system is processable on low pressure casting machines.
 
Wim Gilis, Technical Manager at Huntsman Polyurethanes, said: “Until now, polyurethanes couldn’t match the high-temperature performance offered by other thermosets, but this offers an attractive alternative based on polyurethane chemistry.”
 
Interested parties can find out more about Huntsman’s Vitrox EST system during UTECH Europe 2015, which takes place in Maastricht, The Netherlands from 14 April. During the UTECH Europe conference, Wim Gilis will give a presentation on the system entitled: "High temperature stable Vitrox EST resin system for advanced tooling boards", Florin Room 14:15 Tuesday 14 April.
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