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Painting a Viper

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Re: Painting a Viper

by primerate2 » Oct 15, 2009 5:38 am

I just had epoxy primer then epoxy paint applied on the bottom then turned it over and did the same to the top. Hours and hours of sanding. Black Viking with Dodge green . Really hot.

Re: Painting a Viper

by Vegas XT » Jul 25, 2009 12:54 am

oldskier wrote:I used epoxy (Interlux) primer and Imron on mine. The gelcoat is a REAL hard durable finish but harder to color sand, so I hear. I am real pleased with the durability of the Imron.

Re: Painting a Viper

by Vegas XT » Jul 25, 2009 12:52 am

oldskier wrote:I used epoxy (Interlux) primer and Imron on mine. The gelcoat is a REAL hard durable finish but harder to color sand, so I hear. I am real pleased with the durability of the Imron.
Epoxy primer is what we used on performance motors on ATVs and dirt bikes. It is some good stuff. Easy to sand and make it look smooth

Re: Painting a Viper

by jacklake2003 » Apr 11, 2009 8:32 am

I'm not sure, I don't know much about this, I'm just learning as I go. However, I tried sanding one area with the DA with 60 grit for quite a while and the cracks didn't go away until I got down to "blcak". The boat is blue metalflake, but under that is a flat black material (I assumed gel coat). From what I have been reading, it looks like they spray the flake in the mold (mixed with clear gel) than spray a dark colored gel over that before laying up the boat. So if that's right, the clear gel coat with the flake is fried out and cracked and the black under neath is smooth.
That being said, it takes so long to sand down to the black gel, I don't think I have the patience to sand all the clear and flake off.

Re: Painting a Viper

by transomstand » Apr 10, 2009 6:33 pm

jacklake2003 wrote:Thanks for the advise. I have been reading about Duratec and it looks like a pretty good product. I will be spraying the color myself, so I don't think I should use Imron. Isn't that the paint that requires supplied air respirators?

I am also curious about what "77Viper" asked. Mine too has tons of spider cracks in the gel. Is the Duratec tough enough to prevent reappearing of the spider cracks through the finished paint?

Thanks a lot!
Chris
Are you sure the boat hasn't been clear coated?

Re: Painting a Viper

by oldskier » Apr 09, 2009 8:55 pm

jacklake2003 wrote:Well, they may not be spider cracks than. They're pretty much over the entire topside. They almost look like "mud cracks". It's as if the entire metalflake finish shrank and cracked.
Mine was like that to a point. I think it is the gel drying out with age as well as expansion and contraction due to heating and cooling from exposure to the sun over the years. Most of it (the fine spider cracks), i just sanded deep and covered with a thin layer of vinylester filler. They haven't reappeared yet...

Re: Painting a Viper

by oldskier » Apr 09, 2009 8:50 pm

Riverman wrote:Spider cracks are either a symptom of flexing or impact. Check to see if there is broken structure behind.

Yup.If you grind them and find white lines in the glass underneath, a layer of 1 1/2 oz. mat over the area will take care of the little stuff. If it's an obvious structural crack (not a flex crack, real damage) cut it out an fix it.

Re: Painting a Viper

by jacklake2003 » Apr 09, 2009 8:46 pm

Well, they may not be spider cracks than. They're pretty much over the entire topside. They almost look like "mud cracks". It's as if the entire metalflake finish shrank and cracked.

Re: Painting a Viper

by Riverman » Apr 09, 2009 8:41 pm

Spider cracks are either a symptom of flexing or impact. Check to see if there is broken structure behind.

Re: Painting a Viper

by oldskier » Apr 09, 2009 8:39 pm

I sprayed mine outdoors without a respirator and I'm allr...cough...choke....sputter...alright.

I used a die grinder on the worst 700 miles of spider cracks then filled them with vinylester filler and just shot the epoxy primer over the others...I had to use epoxy filler on some of the ones that I didn't grind out because it looked as if there was some wax in the cracks and the primer just pulled away from them and they showed up just like the paint was never shot over them.....they're a PAIN. If you don't grind them, i would at least scratch through them with a sharp blade to try and get any wax buildup out of 'em and then fill with a fiberglass filler. I used 3M Premium Marine vinylester filler on the gel, then after the primer i used epoxy filler.

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