behind transom seal ? to recoat cracked sealer with

[rcgtsport]

hi i have 84 offshore 24' that i am in process of replacing transom seal on. my ? is, there is some kind of chalk that is all cracked covering the layers of plywood not sure what to do. i have removed all the chalk or sealer that was cracked and need to know what to replace it with. my thought was merine-tex or fiberglass mat resin? the plywood looks feels good to my was a little wet but drying out now. any sugestions would be great. thank you!

 

[gw204]

You'll want to grind down the joint and lay multiple layers of glass. 1708 will build strength and seal the joint very well. Fair and then gelcoat for a nice finished look.

 

[rcgtsport]

thank you !

 

[richie rich]

but the area must be really dry or none of the resin will stick.....don't cover it until its bone dry