Painting the Hull
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=919
Printed Date: January-15-2025 at 1:49pm
Topic: Painting the Hull
Posted By: ScottZ
Subject: Painting the Hull
Date Posted: October-15-2004 at 12:47pm
I'm on the process on sanding imron paint (that is a different color from the hull) off my 1971 Ski Nautique. There is not enough gelcoat left to refinish, so I am given the option of regelcoating or repainting the hull bottom and sides). Can anyone give me a recommendation on what type of paint I should use?
Thanks
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Scott Zuelzke
Lake Mitchell , AL
1984 Ski Nautique
1972 Skier
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Replies:
Posted By: David F
Date Posted: October-15-2004 at 1:42pm
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You should use Imron (Dupont's polyurethane enamel) or its equivalent.
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Posted By: kenny g
Date Posted: October-15-2004 at 5:13pm
scott,i'm with david.i did the barracuda with imron and love it ! it,s a good hard finish if it's done rite.BUT.. today,there is 2 different types of dupont imron on the market. the 500. and the 500s one is just a cheaper grade,and cost much less. use the better grade and whatever you do.DONOT let anybody tell you you can use lacquer type primer .you'll be wasting your $$$ if you need any help,give me a call 859-824-1740
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kenny g
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Posted By: Tim D
Date Posted: October-15-2004 at 5:21pm
I repainted my 66 mustang about 12 years ago (it's in the diaires). I didn't use Imron, but it has held up very well. I painted the hull, let it dry for three days, wet sanded, drew my stripes and wording, masked it off and painted the blue and red. Then I let it dry for two days and clear coated everything. I put plenty of hardener in the clear to give it a tough finish. I made sure all the solvent had escaped before overlapping by letting it really dry. Trapped solvent will pop off the clear. I used 3m's masking tape called the edge, it gives excellent hard edge lines. If you ever used vinyl treatment on the interior, be sure to degrease (prep wash)where people might have stepped on the fiberglass or you'll get fish eyes.
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Tim D
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Posted By: kenny g
Date Posted: October-15-2004 at 5:47pm
TIM D we are not talking acrylic enamel here.
polyurethane enamel is chemicaly activated.a set amount of paint and activator are used only.unlike acrylics,imron has a short potlife.once it cures,this finish is much harder than acrylic lacquer.but lacquers,and acrylics dull/fade over time,polyurethanes don't.acrylics are thinned,reduced,hardners added,blushing chemicals added [when spraying in damp weather ]at $65 a quart for imron activater,adding more wont do a thing to make the finish any harder.
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kenny g
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Posted By: Tim D
Date Posted: October-15-2004 at 6:20pm
I had to look at the cans, the colors are acylic enamel and the clear is urethane with a hardener or activater or whatever you want to call it. I don't paint cars, only 1 boat. As far as measurements, a body shop told me to put a little extra hardener in but not way too much or it will not cure. The paint I used is not made any more and the Imron is more popular. My sorry choice of words,"plenty" should have been written as precise, exact measurement, don't be short,don't cheat yourself.
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Tim D
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Posted By: NAUTI84
Date Posted: October-15-2004 at 10:58pm
ScottZ,
A buddy of mine rebuilds old Lyman wood boats.
I've seen him redo the entire hull, replacing rotted wood and all the screws. He then has them painted with Awlgrip. http://www.awlgrip.com/
It really comes out looking like a new fiberglass boat.
Not sure how expensive or how many people do it, just thought I'd pass it on.
Good luck!
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http://www.correctcraftfan.com/diaries/details.asp?ID=421&yrstart=1981&yrend=1985 - EX-NAUTI84
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Posted By: David F
Date Posted: October-18-2004 at 3:43pm
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Awlgrip is a brand name (similiar to Dupont). I believe Awlgrip makes a urethane paint similiar to Imron (product name), but I am not certain of its name. Awlgrip specializes in marine finish systems of many types.
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