Chemicals compounds - Import export

Our patented material is highly suitable to produce foam moulds and RTM pressure injection moulds. Advantages: • Large volumes of more than 2500 kg can be cast in less than 45 min. • Good castability • Hardly measurable linear shrinkage • High temperature resistance • Demoulding process after approx. 90 min. (after adding the last backfilling compound) • Chemical adhesion to polyester or vinylester gelcoat • Immediately after the first mould half has cooled down, the second mould half can be prepared • Copper pipes keep the mould surface on a nearly constant temperature • Post-curing is not necessary ALWA MOULD D backfilling compounds are the fastest system on the market. For the surface you can chose between two gelcoats: 1) ALWA MOULD COAT This is a vinylester gelcoat that is especially suitable for high-end surfaces. It can be polished to high-gloss. 2) ALWA EPF 10 This is an epoxy gelcoat that is easy-to-use and is recommended for parts, where high-gloss surfaces are not needed

The SMC presses from Siempelkamp are designed in such a way that they can also be used for the RTM process. Short cycle times Since the SMC process is predominantly used in the production of high quantities, apart from precision, a short cycle time plays a important role. And since the compound material is chemically reactive, the time window for achieving an optimum surface quality is also small. The advantages of the Siempelkamp presses: they apply the force extremely quickly to the product, because they close at a very high speed decelerating just before reaching the end position. Depending on the level of automation, the tool change is done automatically – just 120 seconds later the next part can be produced! No stress The precise positioning of the ram plate ensures that the tools are precisely aligned to each other during the complete press stroke – not just on the last millimeters. Under all operating conditions the tools remain parallel.