Hawk International Slot Strip Centerboard Gasket Material -
Great for sealing the underside of centerboard trunks, transom flaps or rudder fairings on larger boats. Mylar (with Dacron on one side for glue/epoxy to bond to). 2"W size (SS50) is typically used for centerboard gaskets (two separate strips overlapping). 3"W size (SS75) is used for centerboard gaskets (on strip slit down the middle or two separate strips overlapping).