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Hull Painting

Posted By: millex5

Hull Painting - 06/13/08 10:09 AM

For the 2008/9 summer in australia, i am looking at getting the hulls on my taipan repainted. can anyone reccomend:
1: somewhere that will do this for me in either melbourne, sydney or geelong
2: anything (kevlar sheeting..?) that would increase the durability of the paint along the bottom of the hulls, as where we sail, crushed shells and general bits and pieces along the beach have a habit of scratching her viciously.
3: a price estimate of how much this usually costs.

thanks,
Alex
Posted By: fin.

Re: Hull Painting - 06/13/08 10:55 AM

Don't do it! Gelcoat.
Posted By: millex5

Re: Hull Painting - 06/13/08 11:03 AM

Righto.
how much would that cost?
Posted By: fin.

Re: Hull Painting - 06/13/08 11:26 AM

I have no clue as to price, but it is easy enough to do yourself.
Posted By: millex5

Re: Hull Painting - 06/13/08 11:55 AM

of course, i would love to do it myself, but unfortunately there are a few restrictions...
1. no space - I live in italy, and the boat is stored in a small club over here with no indoors working space
2. no ability - i haven't tried painting/gelcoating anything before, and would be unsure about performing such a major task on a boat that I own at this stage in my sailing career. I'll save gaining that experience for when I have a big shed, and lots of time. :P
Posted By: Buccaneer

Re: Hull Painting - 06/13/08 12:46 PM

Quote
I have no clue as to price, but it is easy enough to do yourself.
Interesting, and what technique would you recommend? <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" />
Posted By: slosail

Re: Hull Painting - 06/13/08 06:49 PM

Is gelcoat being recommended for a small strip along the bottom of each hull, or each whole hull? The latter would seem rather heavy...
Posted By: Cheshirecatman

Re: Hull Painting - 06/13/08 06:56 PM

Quote
For the 2008/9 summer in australia, i am looking at getting the hulls on my taipan repainted. can anyone reccomend:
1: somewhere that will do this for me in either melbourne, sydney or geelong
2: anything (kevlar sheeting..?) that would increase the durability of the paint along the bottom of the hulls, as where we sail, crushed shells and general bits and pieces along the beach have a habit of scratching her viciously.
3: a price estimate of how much this usually costs.

thanks,
Alex


Do a search and look for a local supply of ceramkote 21(check spelling). It is a sprayable industrial coating of epoxy base with ceramic particles. I understand that it performs extremely well in terms of abrasion resistance and longevity and even a reduction in surface friction but may not give the 'Full Gloss'. If a good cosmetic finish is desirable look to use it on the underside of the hulls only.
I believe sunsail were using it on their charter fleet in the mediterranean in place of antifouling. Rather than have to haul the boats out and repaint anually they just used an in water boat scrub.
Do a catsailor search as I am sure it has been mentioned before and had pictures.

Cheshirecatman
Posted By: fin.

Re: Hull Painting - 06/13/08 09:07 PM

I use a roller, wet sand and buff. You can spray it if you like.

Virtually every product thinkable has been used on boats, with varying results. IMO, gelcoat is still the most durable, least expensive, and easiest to apply.
Posted By: mattaipan

Re: Hull Painting - 06/14/08 12:02 AM

Alex

I see on your signature you have 'Homebuilt' so in that, your boat is timber, and would be painted.

So I would say 2 pak would be the way to go, and could possibly what is on there now.

If you preped the hulls yourself and dropped the hull off at the painters and supplied the paint, thinners etc.. I would guess you could do it for a couple hundred bucks.

If your boat is foam sandwich, and not homebuilt, I would contact Todd Pickering at Geltec in Bendigo and enquire about the best way to go. Chances are Todd built or had a hand in building your boat originally, being with Boyers from the beginning and now owns Geltec Composites.

When I had my boat painted I had the hulls hanging up ready to go, compressor on site, paint, thinners, mixing pot, disposal overalls, paint stirrers, set up on a table, he came, he painted, he left and he charged $70.00

Regards
Posted By: Cheshirecatman

Re: Hull Painting - 06/14/08 01:35 AM

Quote
Quote
For the 2008/9 summer in australia, i am looking at getting the hulls on my taipan repainted. can anyone reccomend:
1: somewhere that will do this for me in either melbourne, sydney or geelong
2: anything (kevlar sheeting..?) that would increase the durability of the paint along the bottom of the hulls, as where we sail, crushed shells and general bits and pieces along the beach have a habit of scratching her viciously.
3: a price estimate of how much this usually costs.

thanks,
Alex


Do a search and look for a local supply of ceramkote 21(check spelling). It is a sprayable industrial coating of epoxy base with ceramic particles. I understand that it performs extremely well in terms of abrasion resistance and longevity and even a reduction in surface friction but may not give the 'Full Gloss'. If a good cosmetic finish is desirable look to use it on the underside of the hulls only.
I believe sunsail were using it on their charter fleet in the mediterranean in place of antifouling. Rather than have to haul the boats out and repaint anually they just used an in water boat scrub.
Do a catsailor search as I am sure it has been mentioned before and had pictures.

Cheshirecatman


Sorry! coating is ceramkote 54
Posted By: JeffS

Re: Hull Painting - 06/14/08 02:16 AM

G'day Alex "Perfection by International" is an extremely hardwearing paint that can only be put on by roller and brush tipping, wearing a respirator. If your paint is basically okay and its only where your hulls make contact with the sand consider taping that area off apply a bit of wessystem with microfibres to repair damage and just paint that area with any single pack marine undercoat and paint. You can do that yourself very easily and twice a season if needed. With single pack the opened can won't go off as quick.
regards
Posted By: millex5

Re: Hull Painting - 06/14/08 05:12 AM

Yes, to clarify my hulls are wooden.
if i was to go with the "perfection by International" option, how long do the hulls need to be out of the weather for?
Posted By: JeffS

Re: Hull Painting - 06/14/08 10:35 PM

Perfection is a fantastic product but has to be applied perfectly. You would want to dismantle your boat fill and sand all imperfections (this could take weeks if your fussy). Probably 1 coat of sealer then the undercoat probably 2 coats 1 day apart then probably 2 coats of topcoat then no sailing for 2 weeks. All of the coats should be done 1 day apart so that the layers bond and there is no sanding reqired. When I did my stingray it took me weeks to do the fairing but was worth the time and the paint is like new 2 years later. If you type in the name and do a search there is an online tutorial on how to apply. All two pack paints are dangerous you must do it exactly as discribed and wear a good respirator or you may never get to sail it.
regards

Attached picture 148277-stingray.JPG
Posted By: tom_in_fire

Re: Hull Painting - 06/16/08 07:30 AM

In france, people are talking a lot about a teflon paint used by an F18 (who seemed to do very well). I don't know the details but maybe it is worth checking...
Posted By: Anonymous

Re: Hull Painting - 06/16/08 09:19 AM

Don't take too long researching it. Its about to be outlawed by the F18 council.
Posted By: Stewart

Re: Hull Painting - 06/16/08 10:28 AM

this is that new US paint that is an anti-fouling? Their blurb states the growth cant stick...
Actually not sure it will help a F16 with a polished hull but guess some will say it will.. <img src="http://www.catsailor.com/forums/images/graemlins/wink.gif" alt="" />
Posted By: ncik

Re: Hull Painting - 06/17/08 05:03 AM

I got an estimate to 2-pack my cat of about $1000, including sanding and painting. It already has a coat of interprotect which needs a sand and then a coat of primer and a coat of 2-pack.

Find someone that will let you do all the hard work in their shed, mainly the dismantling and sanding. Then they can do the actual painting.
Posted By: JeffS

Re: Hull Painting - 06/17/08 01:30 PM

$1000 for a professional job if theyre going to supply paint, sandpaper, filler, bake it? and do a perfect job with no input from the owner is probably a bargain
regards
Posted By: slosail

Re: Hull Painting - 06/17/08 09:58 PM

$1000 for the whole job seems like a good price if quality work is done...especially if your dollars are still worth something. <img src="http://www.catsailor.com/forums/images/graemlins/tongue.gif" alt="" />

I was looking through some US retailers' paint listings, and the good stuff (2-part) says "not for sale in California." Oh great, do we have to take our hulls across borders now to get good paint on them? (One imagines a nautical version of Cheech and Chong's _Up in Smoke_.) Has anybody out there dealt with this?
Posted By: ncik

Re: Hull Painting - 06/17/08 10:52 PM

Oh yeah, wasn't debating that. Also forgot that I had to rent a bay at the hardstand for a couple of days to get the job done.
Posted By: Cheshirecatman

Re: Hull Painting - 06/17/08 11:15 PM

Quote
For the 2008/9 summer in australia, i am looking at getting the hulls on my taipan repainted. can anyone reccomend:
1: somewhere that will do this for me in either melbourne, sydney or geelong
2: anything (kevlar sheeting..?) that would increase the durability of the paint along the bottom of the hulls, as where we sail, crushed shells and general bits and pieces along the beach have a habit of scratching her viciously.
3: a price estimate of how much this usually costs.

thanks,
Alex


Might sound like a crazy oversight after so much discussion but you need to find out what paint is on the boat at the moment. The substrate required for some of these paint systems is critical. If you get it wrong it will deteriorate very quickly (think of the movement in the timber. Just make sure whatever you decide to use is fully compatible with what's on already otherwise strip and start afresh. If you get it wrong and have used two-pack polyurethane it is much harder to sand back than gelcoat on an FRP boat.

Tip: if using two-pack polyurethane, white seems to exhibit better flow characteristics than heavily pigmented colours.

Cheshirecatman
Posted By: Cheshirecatman

Re: Hull Painting - 06/17/08 11:19 PM

reccomend:
1: somewhere that will do this for me in either melbourne, sydney or geelong
2: anything (kevlar sheeting..?) that would increase the durability of the paint along the bottom of the hulls, as where we sail, crushed shells and general bits and pieces along the beach have a habit of scratching her viciously.
3: a price estimate of how much this usually costs.

thanks,
Alex [/quote]

Might sound like a crazy oversight after so much discussion but you need to find out what paint is on the boat at the moment. The substrate required for some of these paint systems is critical. If you get it wrong it will deteriorate very quickly (think of the movement in the timber. Just make sure whatever you decide to use is fully compatible with what's on already otherwise strip and start afresh. If you get it wrong and have used two-pack polyurethane it is much harder to sand back than gelcoat on an FRP boat.

Tip: if using two-pack polyurethane, white seems to exhibit better flow characteristics than heavily pigmented colours.

Cheshirecatman
Posted By: JeffS

Re: Hull Painting - 06/18/08 05:21 AM

spot on cheshirecatman thats why I lead off with the sealer followed by 2 coats of undercoat, without the base right its worse than a waste of time.
regards
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