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  Has anyone used Marine Surfacing Putty

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Author Topic:   Has anyone used Marine Surfacing Putty
noswah posted 09-18-2001 01:59 PM ET (US)   Profile for noswah   Send Email to noswah  

The guy at West Marine recomended this Marine Surfacing Putty, saying it was really easy to work with and he had used it for years, but I noticed it was water resistant and not water proof. Pros and cons? Thanks
JFM posted 09-18-2001 02:33 PM ET (US)     Profile for JFM  Send Email to JFM     
I think that product is auto body putty. It all depends on what kind of repair you have and where it is on the boat. I would not use that product below the water line and also it should have paint or gel coat over it. Regards, Jay
Dr T posted 09-18-2001 07:13 PM ET (US)     Profile for Dr T  Send Email to Dr T     
I used the product fairly extensively this year.

Situation: My 13 ft side console sport sat out in the hot, dry sun in Texas without a cover for a couple of years. The varnish baked off, and the wood dried and cracks developed. When I moved the boat to Colorado, I had a choice of either trying to restore the wood and varnish, replace the wood and varnish, or resurface the wood and paint. Due to the extremely high UV and dryness in Colorado, I decided that the best approach was to resurface and paint.

I used this product for resurfacing. It is not water resistant, and should be primed and painted before exposure to any moisture.

The stuff mixes up as a fairly thin paste that begins to thicken quickly (about 5 or 7 minutes working time). Apply it with a plastic spreader, slighly overfill, and sand it to smooth. I used 80 grit on an orbital sander for initial smoothing. It sands easily.

Sanding produces a lot of dust, and I highly recommend you use a mask.

All in all, I was fairly pleased with the results, and was able to fill a number of gouges, large cracks, and fine cracks (but it sure isn't as pretty as the original finish).

I covered it with two coats of Interlux primer and two coats of Interlux off white brightside. From a distance, it looks like fiberglass, but up close you can still see some grain in places.

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