Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Chalked out gel coat!

Posted by Finnegan on 11/13/15 - 12:32 AM
#4

I ONLY use 3M marine buffing products. I think they are the best - period, and all the other brands are second class. Just my prejudice, but people who see my boats are amazed at the high gloss. Whaler also recommends and uses 3M products.

Try the 3M Marine Rubbing Compound first. This really cuts through the oxidation and propares the hull for a high gloss finishing compound. For utimate gloss, the second step is to use their Marine Compound and Finishing Material next (black and purple qt bottle), then follow it up with the mandatory 3M Finesse-it II, as recommended by Whaler. Used properly, according to instructions on the bottle, this product will give you mirror like gloss that you can see yourself in! Finesse-it is the key to a perfect finish! You MUSt use it. Use wool pads for all or the above buffing!

If the 3M Marine Rubbing Compound doesn't do it, then as mentioned you have to wet sand, which sounds difficult but is actually a fairly easy process. I keep a supply of wet sand papers, 220,400,600,1000, 1500, and 2000 available. If you have to sand, start with #600, and see how it does. Rarely do you have to go down to 220 or 400 (except for new gelcoat repairs). Then work your way up the grades (all mentioned above) and then the 3 step buffing process. The hull will look like it just left the factory!,

One lat comment - for those of you who varnish multiple coats, the Finesse-it can be used to give varnish a hard, mirror like finish. After your last coat of varnish cures for a month or two, wet sand lightly with 1500, followed by 2000, then buff with Finesse-it. You won't believe the glass like varnish finish!.