(1) As self-hardening mixtures where the sand, binder and a hardening chemical are mixed together: The binder and hardener react to allow the sand to be formed into a mould or core which progressively hardens until it is strong enough to allow casting. This method is typically used for large moulds in jobbing work, although series production is also possible.

(2) For triggered hardening systems, where the sand and binder are mixed and blown or rammed into a core box: Little or no hardening reaction occurs until triggered by applying heat or a catalyst gas after which the hardening takes place in seconds. This process is used for the mass production of cores, and moulds for smaller castings.

We Provide a Comprehensive range of Sand Binders including:

• Water based alkaline phenolic resins and sodium silicate binders for both mould and core making: These provide both excellent casting quality and a relatively clean working environment.
  
• A complete range of self setting furane resins based on furfuryl alcohol and cured using acid catalysts: These products are designed to suit all metals, applications, setting times, hot strength properties, sand reclaimability.
  
• Carbon dioxide cured ECOLOTEC resin for automated coremaking, valued for its environmental benefits, as well as conventional amine cured phenolic urethane cold box resins and heat cured phenolic hot box resins.