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Old 06-21-2006, 05:29 PM   #2
glassdave
Neno the mind boggler
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Join Date: Sep 2001
Location: toledo oh
Posts: 9,035
Batboat, 38 Donzi ZX, 16 Sidewinder, 10' Zodiac and a ScarabIII
Re: painting over gelcoat

heres a quick run down on a typical paint process for boats


i usually do the boat in two independent stages if graphics don't conflict. i do the hull sides first than the deck.
strip all hardware
mask off interior
do all repairs (stress cracks, chips,etc . . .)
spot prime all repairs with PPG's K-36 or equivalent
after primer drys sand entire hull/deck with 320 on a D.A and block sand repair areas
wash hull/deck with grey scotch bright pad and water, pull off all masking paper and tape than wash the entire boat
let sit overnight in warm shop
re-mask off stuff you don't want paint on
wipe down with PPG's DX-330 wax and grease remover

this gets the surface ready for sealer. i usually use a PPG DP epoxy sealer (thin it about 20 or 30% with DT recucer). what ever color is appropriate

i usually let the sealer flash overnight and than lightly hit it with 600 grit wet but use the DX-330 instead of water. i use a spray bottle and like i said very lightly with the sandpaper. i do this to pull out any dust that may have set in the sealer.

wipe that down and you should be ready for paint
use PPG's DBC basecoat for your color and
DCU-2021 for clear.
drysand with 1200 on a DA than wet with 3000 trizak and buff to a shine


now my secret recipe is out an i will no longer have a job


trick is to keep the whole thing simple and try not to back track. if you get a tool out to fix a chip or something, fix all the chips at the same time than prime them all in at the same time. also on very nice boats that are only getting a color change i have droped the DP sealer and used an adheason promotor and had very good results. but you will have to spot seal for good coverage of the finish color. if you have any questions you can also call me at 419-461-1484, always avaliable to lend advise. nice boat by the way. a friend of mine has an older 30 Sleekcraft which is a direct decendant of your boat. thing runs like a scalded dog good luck
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Last edited by glassdave; 09-17-2009 at 02:18 PM.
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