Posted by wing15601 on 06/19/14 - 2:02 PM
#6
Always use a good quality marine sealant, not silicone' on any fitting that screws into the fiberglass. The sealant will prevent water from penetrating the glass to the foam or plywood backing. It also will seal the screw or bolt and prevent crevice corosion which is common with stainless steel fasteners. I always use 5200 or 4200 because they have never failed me but like outboard brands, you will get as many different opinions as there members on this site.