ASK Chemicals has succeeded in developing a new generation of furan resins, whose performance is largely comparable to that of standard furan resins, avoiding the risks of a system conversion right from the start. MAGNASET™ binders are non-toxic, have very good molding properties and produce excellent casting surface finishes. Similar to standard furan resins, the area of application is determined by the composition and the chemical characteristics.
MAGNASET™ binders cover the broad range of different types of casting. MAGNASET™ HP 101, due to its low nitrogen content and good thermal stability, is especially suited to ductile iron and cast steel. MAGNASET™ HP 301, by contrast, is an “all-rounder” for small and medium-sized castings (Figure 1). To cure MAGNASET™ resins, PTS-containing acids can be used, such as the products Härter GS II or Härter Rapid 03 (both hardeners).
The lower monomeric furfuryl alcohol content in MAGNASET™ resins can reduce furfuryl alcohol emission at the workplace by up to 80 % (Figure 2).
Ultimately, the new resin qualities with less than 25 % furfuryl alcohol as a monomer can be adapted to existing processing parameters fairly straightforwardly and used without making changes to the furan resin technology.