New Posts New Posts RSS Feed: Painting Foils
  FAQ FAQ  Forum Search   Register Register  Login Login

Painting Foils

 Post Reply Post Reply Page  <1234>
Author
flat is fast View Drop Down
Posting king
Posting king
Avatar

Joined: 09 Mar 05
Online Status: Offline
Posts: 115
Post Options Post Options   Quote flat is fast Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 05 at 9:35am
my dad has just got his foils painted and they look new the finish is superb what he did was to sand them down so they were perfect and then he got a car sprayer to paint them. 10 it cost him not bad i say
no fear
Back to Top
NeilP View Drop Down
Far too distracted from work
Far too distracted from work
Avatar

Joined: 23 Nov 04
Location: United Kingdom
Online Status: Offline
Posts: 271
Post Options Post Options   Quote NeilP Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 05 at 11:52am
2-pack will go over existing 2-pack, gelcoat or epoxy with no problems. Anything else you may well have problems. One thing to remember: if you paint your foils with acrylic primer, it will absorb water and dirt very rapidlyand need refinishing much more often. If you flat the foil really well with 1200 grit wet& dry, you will be fine with one coat of 2-pack sprayed on then polished. I would use automotive paint rather than the stuff International or Blakes sell - it's harder, more durable and covers better. Cheaper too!
Back to Top
redback View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 16 Mar 04
Location: Tunbridge Wells
Online Status: Offline
Posts: 1502
Post Options Post Options   Quote redback Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 05 at 5:18pm
Blast, I've just refurbished mine with acrylic primer!  I'm now going to spray with aerosol primer and finish with a aerosol gloss and cut back with wet and dry.
Back to Top
mazzas View Drop Down
Newbie
Newbie


Joined: 01 May 05
Location: United States
Online Status: Offline
Posts: 6
Post Options Post Options   Quote mazzas Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 05 at 1:40am
Is nobody using AwlCraft or Emron?  Are these too hard and, therefore, too prone to cracking?
Computers allow us to make mistakes faster than any invention in human history with the possible exception of handguns and tequila.
Back to Top
redback View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 16 Mar 04
Location: Tunbridge Wells
Online Status: Offline
Posts: 1502
Post Options Post Options   Quote redback Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 05 at 9:07pm
I'm using quick drying, oil based interior/exterior "one coat" white gloss.  The sort of paint you can get in your local DIY store.  It works a treat.  I brush it on and don't worry about the brush marks because I wet&dry it the next day.  Looking around the dinghy park this weekend my foils were as good as anybodys and many times better than most - until we hit the concrete groin that is.
Back to Top
chris51 View Drop Down
Newbie
Newbie


Joined: 23 Dec 04
Location: United Kingdom
Online Status: Offline
Posts: 6
Post Options Post Options   Quote chris51 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 06 at 5:25pm

Do people lacquer there foils after they have been sprayed to protect the finish?

 

Back to Top
stuarthop View Drop Down
Really should get out more
Really should get out more


Joined: 22 Dec 04
Location: Nottingham
Online Status: Offline
Posts: 1040
Post Options Post Options   Quote stuarthop Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 06 at 7:29pm
i dont but i re paint mine every few months i get bored of the colours!

Back to Top
tgruitt View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 02 Dec 04
Online Status: Offline
Posts: 2479
Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 06 at 10:17pm
foils shoudnt be shiny. A matt finish is best isnt it?
Needs to sail more...
Back to Top
49erGBR735HSC View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 30 Mar 05
Location: United Kingdom
Online Status: Offline
Posts: 1991
Post Options Post Options   Quote 49erGBR735HSC Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 06 at 10:33pm
I'd disagree with that Tom, foils need to be as smooth as possible to reduce skin friction. Shiny usually goes along with being smooth and matt seems to produce a slightly rougher surface. Higher skin friction increases resistance through the water which in turn will reduce your speed slightly.
Dennis Watson 49er GBR735
Helensburgh S.C
Boat Insurance from Noble Marine

Back to Top
NeilP View Drop Down
Far too distracted from work
Far too distracted from work
Avatar

Joined: 23 Nov 04
Location: United Kingdom
Online Status: Offline
Posts: 271
Post Options Post Options   Quote NeilP Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 06 at 11:04am

Dennis is right, there are several disadvantages to a matt finish. Dirt sticks to matt finishes much more easily, so they need to be flatted regularly cos it's difficult to get them clean by washing. Skin friction is higher, although the difference is only really noticeable if you compare a matt foil with a perfect polished foil. I'd like to bet that no-one on this forum has any idea of the amount of time and elbow grease you need to put in to end up with a perfect foil. Let me give you an idea of the process

  1. Sand with 240 dry to giva a key
  2. Fill all dings/scratches with hard car body filler
  3. Sand again with 360 - concentrate on the repairs first, use a block
  4. Prime with 2-pack high-build primer - at least 2 coats sprayed, 15 minutes between coats
  5. leave to harden 24 hours at room temperature - if you don't do this, the primer will sink into the sanding scratches after you put on the top coats
  6. Guide coat - a very fine coat of matt black aerosol. Don't cover the foil, you're after a coat that is so thin you can still see the primer. Hold the can about 2ft from the surface, and move it quickly.
  7. Wet flat with 400, using a block. Flat the whole foil evenly until ALL the black is gone. For the leading edge, fold the wet/dry over on itself several times to make a stiffish pad, and go easy!
  8. Fill any pin-holes you can still see - now you see why you put on the guide-coat! - with primer using a small brush. Leave for 15 minutes.
  9. Clean THOROUGHLY with a good quality spirit wipe, then tack-rag the surface to remove any last traces of sandimg dust
  10. If you have sanded through the primer in any little spots you will need to spot-prime those
  11. Guide-coat again!
  12. Wet flat with 800, using a block as before.
  13. Wash thoroughly with clean water - at least twice
  14. Leave for at least 2 hours in a dry place. Airing cupboard is good!
  15. Tack rag and spirit wipe again. Don't leave the spirit wipe to evaporate, take it off with a dry lint-free cloth
  16. Spray 3 coats of 2-pack poly, 10 mins minimum between them. Cover the edges and tip first, leave for 10 mins, then cover the surfaces, then spray the 2nd and 3rd coat all in one
  17. leave for 24 hours
  18. Wet flat as before with 1200 until the entire foil is uniformly matt. This will take some time
  19. Wet flat with 1500 or 2000 as before. You will feel the difference as you flat the foil. This is very important, as you won't be able to see the difference easily
  20. When the whole foil is free of the 1200 scratches, polish with Farecla G3 until you get a mirror finish.

If you do it right, it should look like glass, literally! Now though, you have the problem of keeping it like that! Buy a new foil bag, cos the one you've got has sand ingrained in it, and make a cotton innner bag that you can wash regularly to keep the grit off! The gain in performance is small, but you might notice an improvement in pointing ability. Is it really worth all that time and effort, when you'd probably gain more from time on the water?

Have fun

Neil

No FD? No Comment!
Back to Top
 Post Reply Post Reply Page  <1234>

Forum Jump Forum Permissions View Drop Down

Bulletin Board Software by Web Wiz Forums® version 9.665y
Copyright ©2001-2010 Web Wiz
Change your personal settings, or read our privacy policy