Fast curing structural adhesives

ITW Plexus has developed special long working time, fast-curing, 1:1 methacrylate structural adhesives, which produce bonds so strong the substrates will delaminate before the bond fails. These advanced methacrylate adhesives chemically fuse FRP/GRF composite stiffener spars and perimeter flange joints. They also give increased peel resistance and cycle fatigue resistance while reducing damage encountered during transportation. Room temperature snap cure properties have helped to increase production rates and eliminate the high capital expenses and energy costs associated with post-bake ovens, which are required to cure some epoxies. The adhesives developed by ITW Plexus for the wind sector offer several attributes such as they chemically fuse composites to give strong bonds, superior bonding strength is achieved, little or no surface preparation is required and they give high resistance to stress, fatigue and outdoor exposure.