A new processing aid is said to improve flow and release of nylons at lower melt temperatures.
A new processing aid is said to improve flow and release of nylons at lower melt temperatures. MoldWiz INT-38HM from Axel Plastics Research Laboratories, Woodside, N.Y., reportedly cuts the risk of resin degradation when excessive heat is required to achieve good cavity filling, and it ensures excellent release while leaving the surface of molded parts clean and ready for bonding, printing, or hot stamping. In the case of the nylon paddle blade pictured here, adding just 0.3% of INT-38HM to glass-filled nylon 6 eliminated filling problems while also permitting 25° C lower process temperatures. Part discoloration was eliminated and cycle time dropped from 35 to 27 sec for a 23% increase in productivity. No external mold release was needed, which ensured good adhesion of the logo graphics to the molded parts.