whats the difference btween fiberglass paintstripper and household?? how does household hurt your boat? I applied this to my keel and nothing bad happened... most of the old bottom paint came off and which that is my goal? i dont have the maony to soda blast but i do have alot of time since being laid off..also how should i fair my keel what products are good? i have a lancer 36 with alifetime of bottom paint on her!!! I think its time..