THE BINDER SYSTEMS
The inorganic binder systems presented and used here are all exclusively alkali silicate – i.e. water glass systems.
These binders can be directly modified according to their characteristics in various ways. This is achieved for example by a change in viscosity, which typically affects the flow rate of the moulding material, and therefore mechanical processibility. Additionally it is possible to chemically adapt the initial binder systems, whereby the additives utilised can either be organic or inorganic.
Although the main focus of the modifiers and additives used is obviously on inorganic compounds, it is not currently possible to completely dispense with organic ingredients. The organics used are primarily responsible for improving decay properties, i.e. reducing residual strength. Furthermore it must be noted, that the maximum allowable contents of organic compounds in binder systems has been limited to 5%, although in many applications less is present. An additional important aspect of our binder development is, as a rule, to supply a single compound binder, thereby dispensing with external additives such as flow improvers, decay catalysers or mould release agents.
All multi-component binders in foundries require concomitant modifications to the plant as well as additional warehousing and increased logistics. It is our goal to use the three classic components in use, base moulding materials, binders and hardeners to produce the moulding material. Our Cast Clean® binder systems range has been available on the US and European markets for some time now. These Cast Clean® binder systems are then developed further to fit the specific application, in order to provide the most ´custom developed` systems possible.