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02-10-2009, 12:18 AM
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#1
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Registered User
Join Date: Jan 2008
Posts: 66
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bottom paint????
Guys just sprayed the bottom of my hull with epoxy primer,Any thoughts on what to use as a topcoat?regular automotive paints wont do,ive heard of awlgrip,anyone know of anything, or indeed a supplier for epoxy topcoats in the uk cheers????
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02-10-2009, 08:06 PM
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#2
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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Why won't 2 pack do?
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02-10-2009, 08:57 PM
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#3
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jw
Country: devon
Location: exeter
Occupation: painter
Interests: boats
Cruising area: exmouth
Join Date: Dec 2007
Location: exeter
Posts: 90
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Quote:
Originally Posted by rocky111
Guys just sprayed the bottom of my hull with epoxy primer,Any thoughts on what to use as a topcoat?regular automotive paints wont do,ive heard of awlgrip,anyone know of anything, or indeed a supplier for epoxy topcoats in the uk cheers????
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2 pack paint will do it.
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03-10-2009, 11:59 AM
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#4
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Registered User
Join Date: Jan 2008
Posts: 66
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Wont regular 2k acrylic or poly topcoat blister? I have done a few boats in the past but never any bottom work, and have seen a few that the bottom had badly blistered on with paint. Your thoughts appreiated. By the way, the boat is kept in fresh water only for approximately 16 to 20 weeks at a time and stored in winter.
Here are a couple of boats I have done previously
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03-10-2009, 12:50 PM
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#5
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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Ooh, that yellow one make me so tempted to paint the revenger in yellow and purple over the winter!! Must resist!
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03-10-2009, 07:06 PM
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#6
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Registered User
Country: Norway
Boat make: Nothing fast...
Join Date: Dec 2007
Posts: 127
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Quote:
Originally Posted by rocky111
Guys just sprayed the bottom of my hull with epoxy primer,Any thoughts on what to use as a topcoat?regular automotive paints wont do,ive heard of awlgrip,anyone know of anything, or indeed a supplier for epoxy topcoats in the uk cheers????
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Don't think awlgrip is water proof, so stay clear of it. It is fantastic for the topsides, but will not work on the hull. We painted an entire boat in awlgrip, but stopped at the waterline. No point in wasting quality paint.
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12-10-2009, 02:49 PM
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#7
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Registered User
Country: Germany
Location: Germany, Wiesbaden
Occupation: Boatbuilder, retail and wholesale
Interests: Boating
Boat make: skater 28/Phantom 21/ Shark-24
Engines: Yamaha's, Merc 300xs
Cruising area: River Rhein
Join Date: May 2005
Location: Germany, Wiesbaden
Posts: 49
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If the boat lie in the water shall, you can't take 2k Polyuertan or Acryl.
Lacquer, no matter which, throws blisters after 2-4 months in the water.
You can coat only with Gelcoat, that holds, then.
Oder Epoxy Primer and Antifouling.
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12-10-2009, 05:44 PM
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#8
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Registered User
Join Date: Jan 2008
Posts: 66
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Anyone had any experience of renewing gelcoat on the bottom?/how much work is involved?
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12-10-2009, 06:35 PM
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#9
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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shit loads!! grind it out, re gel then rub it back
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13-10-2009, 07:18 AM
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#10
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Registered User
Country: Germany
Location: Germany, Wiesbaden
Occupation: Boatbuilder, retail and wholesale
Interests: Boating
Boat make: skater 28/Phantom 21/ Shark-24
Engines: Yamaha's, Merc 300xs
Cruising area: River Rhein
Join Date: May 2005
Location: Germany, Wiesbaden
Posts: 49
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Underground thoroughly sharpens, Gelcoats serve, finely slur and polish shine on high.
See my pictures!
All Gelcoat, no color,
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13-10-2009, 10:32 AM
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#11
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Registered User
Location: Belgium
Interests: Boating
Boat make: Hydrostream HST
Engines: Merc 2.5 200
Cruising area: The Schelde
Join Date: Dec 2005
Location: Belgium
Posts: 468
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Quote:
Originally Posted by Pain
Underground thoroughly sharpens, Gelcoats serve, finely slur and polish shine on high.
See my pictures!
All Gelcoat, no color,
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Have you doen the entire boat with gel? Looks amazing!
What tip did you use? 2.5mm? How did you think it and how much?
I know there is a product called Duratec. You have to mix it in gelcoat (1:1) ratio. You can almost spray it like paint. So not much sanding after you sprayed it...
__________________
www.geocities.com/fletcher_arrowbeau
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13-10-2009, 11:57 AM
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#12
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Registered User
Country: Germany
Location: Germany, Wiesbaden
Occupation: Boatbuilder, retail and wholesale
Interests: Boating
Boat make: skater 28/Phantom 21/ Shark-24
Engines: Yamaha's, Merc 300xs
Cruising area: River Rhein
Join Date: May 2005
Location: Germany, Wiesbaden
Posts: 49
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I know duratec. Better is the coating from Croma!
I don't like it, it is too soft for me. It is not so hart like Gelcoat.But better for sanding.
The phantom 21 on the picture has been coated complete with Gelcoat.
We spray it with an Airless installation.
Bows 240 to 2000 and polishes it.
I like the Gelcoats of Reichold the most.they are the most solidly at the UV and have the bigest shine.
The phantom on the picture is the first boat in Germany in silver Gelcoat.
I have coated already many boats with Gelcoat.
We also varnish, but lacquer throws blisters if it lies in the water too long.
Or if a PVC tarpaulin lies on it.
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13-10-2009, 12:06 PM
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#13
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Registered User
Location: Belgium
Interests: Boating
Boat make: Hydrostream HST
Engines: Merc 2.5 200
Cruising area: The Schelde
Join Date: Dec 2005
Location: Belgium
Posts: 468
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It doenst look like silver in the picture. Do you have more pictures?
Well you are right about the Duratec thing. Yes it is easier to spray and sand but it is less hard than only gelcoat
What do you use to fill scratches? I use epoxy so is it possible to put gell over the epoxy? I know in theory it's not possible but will it be that a big problem for some small repairs?
Thx
__________________
www.geocities.com/fletcher_arrowbeau
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13-10-2009, 12:29 PM
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#14
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Registered User
Country: Germany
Location: Germany, Wiesbaden
Occupation: Boatbuilder, retail and wholesale
Interests: Boating
Boat make: skater 28/Phantom 21/ Shark-24
Engines: Yamaha's, Merc 300xs
Cruising area: River Rhein
Join Date: May 2005
Location: Germany, Wiesbaden
Posts: 49
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DEEP scratches are laminated.
The new Laminat becomes flat sanding then.
If the scratches are not so deep is replenished it with Gelcoat .
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