A unique application of CerraFlex, still within the shakeout (degating) phase, is as a de-risering aid.  Attached to the bottom of any variety of riser sleeve (exothermic, ceramic, etc.), a cut disc of CerraFlex can be glued, stapled, or even embedded into the inner wall of the riser sleeve itself during fabrication, depending on the preferences of the customer.  However, our experience with customers and lab testing has shown that the most effective configuration of riser sleeve & Riserbreaker is to utilize a standard breaker-core (resin bonded sand) as a frame for the CerraFlex material and then glue that component to the bottom of a neck down or other desired riser sleeve.  The breaker core creates an even smaller contact area between the riser and the casting, helping ensure an easy "knock-off".

 To ensure adequate metal flow-back, a pre-calculated center hole can be cut in the CerraFlex disc that will not impede metal flow and still provide for easy riser “knock-off”.  Technical support information for flow rates and hole size calculation can be downloaded here.  We understand that modifying any elements of your casting process is not a decision to be taken lightly, and to ensure you are both convinced of the effectiveness and practical use of RiserBreakers before placing your first order, we're more than happy to send you test-samples to try for yourself.  So what have you got to lose except time and money?  CONTACT US today...