Arreis Nonformaldehyde MDF from SierraPine
), in July 2006 SierraPine, Ltd., added a new medium-density fiberboard (MDF) to its no-added-formaldehyde MDF product family. Arreis™ (“Sierra” backwards), like Medex® and Medite® II, uses the non-formaldehyde polyurethane binder methyl diisocyanate (MDI). The product is made from 100% recycled wood fiber (certified by Scientific Certification Systems for recycled content) and meets the most stringent formaldehyde emission standards, including those proposed for California. On a performance scale of “good, better, best,” SierraPine’s marketing director, Jeff Baker, describes Arreis as good, with Medite II better and Medex best. But, due to the MDI binder, Medite II and Medex are also significantly more expensive than conventional MDF, which is produced using urea-formaldehyde (UF) binder. The company uses a patent-pending process to more efficiently utilize the MDI binder in Arreis, thus keeping costs down. While noting that distributor markups and local prices vary, Baker told EBN that Arreis typically sells for about 11% more than standard MDF, with Medite II and Medex selling for 32% and 60% more than standard MDF, respectively. Properties of Arreis and other SierraPine MDF products are listed in the table below. ...