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Dynasylan® - Evonik's brand for functional silanes
The development of foundry binders based on organic resins has become possible only by the use of organofunctional silanes. Synthetic foundry binders e.g. those for cold curing processes enable energy saving, are environmentally friendly and enable fast curing to fulfill the high demands of the state-of-the-art foundry technology. Organofunctional silanes are essential to achieve the necessary strength at the relatively low content of binder. Without addition of silanes to foundry resin the binder strength is not sufficient, only the usage of silanes achieves sufficientlevels of mechanical strength.
Evonik offers a broad range of organofunctional silanes which have been specially developed for the foundry industry. This enables optimum silanes to be offered for the different resin systems.
The most important effects of Dynasylan® organofunctional silanes in resin-bonded foundry mould materials are:
The choice of the right silane for a particular resin system is made on the basis of known structure and empirical testing. A suitable Dynasylan® can be recommended for all different foundry resin process: