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#1
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One more question for you guys. And I kinda know the answer, But can you tie new resin and cloth into roughed up gelcoat? some say no and some say yes you can.
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#2
11-08-2011, 09:29 PM
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You want to grind down the gelcoat to get to the glass underneath. This does a couple of things. First, its a better surface for the resin to adhere to. Second, it creates a bevel so when the new glass is laid it is a similar height rather than having a hump that creates a ton of work in fairing.
__________________
84' Wellcraft Fisherman 18 / 96' Evinrude 130-Sold 20' Fisherman project underway www.ParkerFenceandDeck.com
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#3
11-08-2011, 10:39 PM
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What he said
fwiw I dig the appearance of glassed mat on the floor..... dunno if it's better or worse strength wise tho
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#4
11-09-2011, 06:55 AM
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Thanks for the info fellas.
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#5
11-09-2011, 07:48 AM
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Get as much gelcoat ground down as you can. A fleck here and there isn't gonna kill you. You need a strong mechanical bond when attaching new glass to cured glass, mechanical bond is about all there is with PE or VE. 40grit and leave ridges to give the glass something to hold onto. If you let the new glass cure, you have to grind it rough again to apply subsequent layers. To save on grinding, do wet on wet application whenever possible.
If you had 1708 coming out the wazoo you could use it for both sides of the plywood and step back to 5/8" or 1/2" plywood. You having fun yet? AND We want to see some pictures. 
__________________
 1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS
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#6
11-09-2011, 10:24 AM
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I'm having a blast with this boat. My girlfriend picked out the color (fighting lady yellow). I figured I would include her in on something. I'm learning to wet on wet as much as possible. I want to thank everyone for there help so far. My tramsom is ready to go in this weekend everything is prepped and cut out and ready to go all I need to do is go buy my cabosil tomorrow.
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#7
11-09-2011, 09:20 PM
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Spare poited out a method of using a router to remove gel coat...w/a 3/4" or better bit, and that bit dropped 3 layers of masking tape(to match the depth of the gel coat), it'll take it off quick...obviously needs to be a flat enough surface to accomodate the router shoe...haven't tried it, but sounds good...Spare said worked very well...
__________________
'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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