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Author Topic:   Fiberglass Restoration
ratking20 posted 06-23-2015 07:53 PM ET (US)   Profile for ratking20   Send Email to ratking20  
[I] am going to start [repair of the fiberglass] on my 1989 Boston Whaler SUPER SPORT 13 [which has] some small holes in the deck and keel--all over really. None [of these small holes are] too big but some aren't tiny either. [I] want to sand down the entire hull and [apply a paint called] AWLGRIP [as a top coat] over the winter. [S]hould [I] repair all the holes before or after [I] sand down [the surface of the boat]? Does [the sequence of repair] even matter?
wezie posted 06-24-2015 10:55 AM ET (US)     Profile for wezie    
Before starting, read instructions on ALL materials you plan to use. There are many pasts on this subject and similar. Search
jimh posted 06-27-2015 11:17 AM ET (US)     Profile for jimh  Send Email to jimh     
It is good to know that none of the small holes in the deck, keel, and all over your 1989 Boston Whaler SUPER SPORT 13 are too big and are not tiny, either. That is the nature of small holes.

I cannot offer to you any professional advice or even first-hand advice based on my own experience on your plan to "sand down" the entire boat, because I have never undertaken a repair of a Boston Whaler boat which involved sanding down the entire hull. If I were to undertake such a major repair, I believe I would approach it this way:

--first, sand the hull and deck surface to remove all minor imperfections, such as the tiny holes that are smaller than the small holes

--next, repair any remaining imperfections, any of the small holes that are not too big, and any big holes that are not too small

--finally, fair all repaired areas to the new sanded surface level.

For advice on making repairs to the hull of a Boston Whaler boat, there are two excellent articles in the REFERENCE section. These articles describe in detail the methods to be used in making repairs to Boston Whaler boats, and include illustrations and photographs. See

Repairing Hull Damage the Whaler Way
by Taylor Clark


Epoxy resin that has been thickened with a filler is a good choice for filling holes from old fasteners. I often have used it. For a description of the general method, see


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