Sealing fiberglass panels on hybrid

sktn77a

Gold Supporter
May 16, 2010
1,378
Chapel Hill, NC
Well, the usual is 3M 5200 mastic/caulk. But that WILL pull out eventually and if you paint on top of it you'll probably have problems. Gunzite is designed as a primer for plaster pools - not sure how well it will work on fiberglass.