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 Post subject: 16 hull rebuild
PostPosted: Tue Jun 07, 2011 8:59 pm 
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Site Rank - Old Salt

Joined: Wed Aug 18, 2010 8:15 am
Posts: 500
Location: Saint John, NB Canada sailing on Washademoak Lake
So, combination of death in the family and too many beers resulted in me getting to my hulls with an angle grinder and 3M flap discs to remove the yellow paint you see in my signature.

Before the news, I had started a bottom job, so I had to sand around the problem area. My plan was the easy way out and just paint yellow around that area of the repair. I started talking to a dude at the marine store where I was buying my supplies and he convinced me not to paint it, but to put gelcoat instead as it's more durable and waterproof. His argument was that if I painted my repair, I'll have to repair it again sooner.

I never liked the yellow, but did not want to sand it. I nevertheless bought white gelcoat to put on the bottom and was going to cover it with yellow paint to match.

But then I started thinking of the amount of work I was really putting off for later, so I put the grinder to it. I removed all the yellow, most black and most of the chocolate paint. I guess it's been painted a few times. The chocolate however kind of looked like gelcoat, but since I'm not sure, it going too since there is a layer of beige underneat.

So here are my 3 questions.
1 - I have a cheap ass electric orbital sander with worn out velcro so my sanding discs don't stick. What's a good type of sander to get to finish my restore?
2 - Will it be hard to match the beige? If possible, I'd like to avoid having to gelcoat the entire boat, just polish what I don't need to touch. If too hard, I'll just go all white, it will be easier to match for the next repair.
3 - What type of spray gun should I get to spray the gelcoat? I already have the air compressor.

Thanks,
Marc...

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Marc...
1978 Hobie 16 Keoke, sail# 36 84
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 Post subject: Re: 16 hull rebuild
PostPosted: Wed Jun 08, 2011 3:56 am 
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Site Rank - Deck Hand

Joined: Sun Apr 17, 2011 4:17 am
Posts: 11
Location: Stanwood, WA
Marc,
Sorry to hear about your loss. I just finished up stripping off all the old paint and repairing my hulls.
1. I used my orbital sander to strip the paint, and it worked great for me. Check out Home Depot or Lowes for a replacement pad for your sander. Much cheaper than buying a new one, just make sure you match the bolt hole pattern on the pad, there's a couple different styles.
2. There's tint available for gel coat. With a little trial and error, you should be able to get a reasonable match.
3. If you search the forums here you'll find lots of guys saying a cheap HVLP sprayer from Harbor Frieght will do just fine. I have a mid-range HVLP and had no problems spraying the gel coat with it.


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 Post subject: Re: 16 hull rebuild
PostPosted: Wed Jun 08, 2011 4:20 am 
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Site Rank - Old Salt

Joined: Wed Aug 18, 2010 8:15 am
Posts: 500
Location: Saint John, NB Canada sailing on Washademoak Lake
Thanks.

I see 2 main types of HVLP guns, gravity fed (reservoir on top) or with the reservoir at the bottom, don't know what they are called. Would either work or is there a preference?

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Marc...
1978 Hobie 16 Keoke, sail# 36 84
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 Post subject: Re: 16 hull rebuild
PostPosted: Wed Jun 08, 2011 2:33 pm 
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Site Rank - Captain

Joined: Fri May 06, 2011 3:16 pm
Posts: 27
I prefer pots( where the tank is seprate from the gun) That way the gun is lightier and you can spray at any angle. not something you can do with a cup or gravity feed gun.

something like this

http://www.harborfreight.com/profession ... 93305.html


Yes, the quality is not that great, but they work. The best part is you just throw them away.


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