balsa rite most definitly helps the coverings stick better especially on plywood fuselages and wing center sections. it is also good fuel proofer and can be used as a stiffner when you discover (toolate ) soft balsa in a fairly important area. the thick version (did not know it was still aound) can be thinned with acetone . there are a few coverings out there with NO adhesive on them so this is the stuff to use.