NC 28 is a low viscosity phenolics and aramotic-free flame retardant that can be used in both polyether and polyester based polyurethane foams.
The other specificity of NC-28 lies in its superior resistance toward crystallization at low temperature, a phenomenon that is often encountered with similar flame retardant commercial grades. As a result, it is a flame retardant of choice for use in winter conditions.
Its high purity and absence of phenolic by products make NC-28 a flame retardant of choice for enhanced VOC’s performance applications.
NC-28 can be used in continuous and discontinuous slabstock and moulded production applications. Examples of fire standards that can be met using NC-28 are UL94, Cal TB 117 parts A,D, FWVSS 302. It can also be associated with a synergist(i.e.melamine) for the production of foams that meet the requirements of BS5852 Crib5.