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df
United Kingdom
5994 Posts |
 Posted - 07 May 2015 : 19:40:07
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If the gelcoat is too bad for a cut back and polish to make it look good go for painting it, re gelcoating will cost heaps and not add the cost to the value of the boat.
Gelcoat is usually the first coat in the mould before the layup resin and strand, gelcoat will not fully cure till the air is taken away, flowcoat will cure in air but has a short pot life to get a good finish with.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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Deano
United Kingdom
1843 Posts |
Posted - 08 May 2015 : 01:02:54
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What is re-geling???? Is there such a process??
As far as I understand.... and I have painted a few boats.... 2-pack and traditional...
You can paint a GRP boat.... either in traditional alkyd paints or 2-pack epoxy. The latter giving a hard gel coat like appearance. Lots of prep required and a dry, temperature controlled dust free environment to apply. Expect to have to do it all over again in 5 to 8 years.
You can coat it in flow coat..... gel coat with wax... the finish is rough and will need fairing, filling and polishing to get anything like a good finish...... imagine covering your car with P38 body filler and then attempting to get a showroom finish with wet and dry paper..... It will also probably fall of in a week or so if applied to a flexible structure like the deck of a boat.
There is also Awlgrip..... an amazing, high quality professionally spray applied epoxy based boat re-finishing paint system. Great if you have the budget, but not much change from £5,000 for a small boat. Probably not economical for most small boats and certainly not a DIY solution.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
Edited by - Deano on 08 May 2015 01:04:51 |
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D46Lincs
United Kingdom
26 Posts |
Posted - 08 May 2015 : 15:29:46
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Im a little confused so what is my best cost effective way to paint her? These details below are where i am so may give those of you who are in the know details to maybe give best advice.
I have attached an image to give you an idea of what im up against
1. my boat is in the open
2. sanding has gone beyond the gelcoat in many places
3. i have had to repair the outer shell in many places with Marine Filler
4. i have had to repair the cabin (Outside) with Fiberglass
5. The finish will need to be forgiving to the shell finish (Many old repairs and new repairs)
Thanks in advance
Dave
D Village |
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Deano
United Kingdom
1843 Posts |
Posted - 08 May 2015 : 16:24:04
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2-Pack paint - Applied by roller and brush, but there myst be no previous paint on the surface or it will react with the 2-pack.
You will need a 2-pack undercoat before the topcoat. The surface will need to be filled and sanded to a good quality of finish.
This will leave a hard, low maintenance finish, similar to gel coat. It will also seal any exposed fibres of the underlying GRP.
Get yourself the International boat painting guide.... http://www.yachtpaint.com/gbr/diy/media-centre/boat-painting-guide.aspx
Pick a nice day for painting, rig a sheet above the boat just incase.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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D46Lincs
United Kingdom
26 Posts |
Posted - 08 May 2015 : 21:33:32
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Many Thanks Deano for that advice and will follow to the letter.
On the downside More sanding grrrrr lol
D Village |
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D46Lincs
United Kingdom
26 Posts |
Posted - 10 May 2015 : 19:44:12
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Finally got some meaningful work done on my boat, all the old white paint is gone from the exterior just need to flat sand ready for paint, but before that i have been FIBER GLASSING.....yes you heard it first.Finally a decent day to do a bit of glass, mind you i had to go back to school to work out the mixes. I have a kit with a syringe for the catalyst but nothing to measure the epoxy so along comes the wife to the rescue with a measuring jug from our old iron and five mins working out off i went. Just checked my work and it appears all is well.
Just the small holes left to do and where the prop for an inboard went through the bottom of the boat and im ready to repeat on the outside.
God willing we get some decent weekends in the next few weeks as im keen to get paint on before we get to high summer and the chance of insects sticking to my work.
Back to work after a useless week off tomorrow so will update next weekend.
D Village |
Edited by - D46Lincs on 10 May 2015 19:46:13 |
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cliveshep
Thailand
1324 Posts |
Posted - 11 May 2015 : 16:06:49
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Dave (DF) - is Malc still around? Just curious, I always felt sorry for the old chap, did a lot with a little but was SOOOO sensitive to criticism that he'd (verbally) lash out. I actually liked him!
Apropos painting boats where there might be traces of old paint etc, I do mine with 2-pack acrylic. It's what the yards down on the Solent and Hamble use on the flash yachts and it works on older stuff too. It is a spray job and do watch you wear the appropriate PPE as the fumes are bad.Pure brilliant white - the so-called appliance white - is a good one to use because you can touch up with aerosols any damage during the year and re-do properly at season's end.
The cost of boating is insignificant compared to costs of a young wife and two teenage kids! |
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Deano
United Kingdom
1843 Posts |
Posted - 11 May 2015 : 18:45:10
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quote:
Originally posted by cliveshep
[. It is a spray job and do watch you wear the appropriate PPE as the fumes are bad.
Just to clear up "bad".... Isocyanates..... instant death. (almost!)
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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D48lincs
United Kingdom
1 Posts |
Posted - 19 Feb 2017 : 12:27:16
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Hi All
Im back after a year away i used to be D46Lincs, however i cant remember my password and could not find how to reset it etc etc. Anyway im now D48Lincs and im back to document the renovation of my Norman 17 (1969) "Celestial Dawn" . I did little to her last year as many other things were going on in my life however i popped out this morning to see what the winter has done to her under her sheet and apart from some water ingress and some green algea on the shell she has got through unscathed, Just want the weather to dry up and warm up to start more fiberglassing. Roll on Spring!!
Davie V |
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My Norman 17 project
