BoatLIFE® LifeCaulk® works well to replace old or worn caulking. Before caulking, the surface should be prepared by abrading it with medium-grit sandpaper, then cleaning it with acetone, toluene or alcohol.
King StarBoard®, King StarBoard® ST, King ColorCore®, King ColorBoard® and King CuttingBoard® can not be glued using standard adhesives. Products like 3M’s 5200 work well as a water sealing caulk but will not adhere King StarBoard® to itself or other materials in a permanent bond. It is preferable to mechanically fasten or weld King StarBoard®, but when an adhesive is necessary you can use a product called Chem-Set™ 6105 Polyolefin Bonder, Lord 7542-AB, or 3M’s Scotch-Weld DP-8005. We do not represent these products, or make any claims about their abilities or accept liability for them.