Thread: advice on using solid Ali rivets

Do not use silicone it will leak and peel off bostik seal and flex polyurethane is great in grey between lap joins . You can tighten existing rivets 1 person inside upside down hull with ear protection and hold a sledge hammer head on each rivet while out side man hits each rivet twice with a hammer , get a builder mate with his hammer to do it so no miss hits . Done this on few fyrans and parkercraft , works a treat , remember all parkercraft are at least 40 yrs old and alicraft the same .sikaflex makes good urephane aswell but twice the price .