New Posts New Posts RSS Feed: Fixing dagger board chunk
  FAQ FAQ  Forum Search   Register Register  Login Login

Fixing dagger board chunk
 Post Reply Post Reply Page  <123>
Author
  Share Topic Share Topic  Topic Search Topic Search  Topic Options Topic Options
Rupert View Drop Down
Really should get out more
Really should get out more


Joined: 11 Aug 04
Location: Whitefriars sc
Online Status: Offline
Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Topic: Fixing dagger board chunk
    Posted: 03 Mar 10 at 9:46am

The centreboard looks like a shark got to it!

The advice on mending it looks spot on to me.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
Back to Top
JimC View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 17 May 04
Location: United Kingdom
Online Status: Offline
Posts: 6660 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 10 at 10:27am
Originally posted by dave.blakesley

Dont use a heat gun or fan heater to cure gelcoat/epoxy/resin/anything, will mean more work in the long run and a weaker repair.


Um, not necessarilly. All these materials have an optimum range of temperature to cure properly. If it takes a fan heater and a "tent" to keep it at the right temperature than that's what you need to do. You shouldn't blast a heat source straight at the curing material so its way over temperature instead of under, but you do need to keep the air temperature in range.
Back to Top
I luv Wight View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 28 Jan 05
Location: United Kingdom
Online Status: Offline
Posts: 628 		Post Options Post Options   Quote I luv Wight Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 10 at 11:03am
Epoxys work best with a room temperature cure ( at least overnight or a day or so  ) and then a high temperature post-cure. Normal boatbuilding resins (SP sicomin west etc) cooked at 60°C for a few hours is so much better.
Masts ( and boats if you have the cash ) made with prepregs are cooked at 120°C ish - that's why they don't go soft in the sunshine.

http://www.bloodaxeboats.co.uk
Andy P
foiling Int Moth GBR3467
Freedom 21 Codling
Back to Top
dave.blakesley View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 25 Mar 08
Location: United Kingdom
Online Status: Offline
Posts: 314 		Post Options Post Options   Quote dave.blakesley Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 10 at 11:30am

Um, not necessarilly. All these materials have an optimum range of temperature to cure properly. If it takes a fan heater and a "tent" to keep it at the right temperature than that's what you need to do. You shouldn't blast a heat source straight at the curing material so its way over temperature instead of under, but you do need to keep the air temperature in range.


Thats pretty much what i meant, dont just blast it with a heat gun or fan heater straight away, use a tent or well heated room!
Back to Top
zailor View Drop Down
Far too distracted from work
Far too distracted from work
Avatar

Joined: 10 May 09
Location: Penparc
Online Status: Offline
Posts: 249 		Post Options Post Options   Quote zailor Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 10 at 5:48pm

Will it dry out in the cold?
I wont use it for a while yet so it has time, but if it wont set in the first place....

Thanks for the input By the way.

P.S
Just for the record I am not responcible for any of the damaged caused.
Moral of the story.

NEVER EVER TRUST LITTLE BROTHERS

Back to Top
dave.blakesley View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 25 Mar 08
Location: United Kingdom
Online Status: Offline
Posts: 314 		Post Options Post Options   Quote dave.blakesley Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 10 at 9:47am
It will take a lot longer for the reaction to happen, and any moisture will ruin the repair. The reason for heating it up is to enable it to reach the activation energy faster. Better to leave it in a warm room.
Back to Top
zailor View Drop Down
Far too distracted from work
Far too distracted from work
Avatar

Joined: 10 May 09
Location: Penparc
Online Status: Offline
Posts: 249 		Post Options Post Options   Quote zailor Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 10 at 6:50pm
so for the europe hull would that gelcoat filler thing I put in a link further up be the right thing to fix it?
Back to Top
womble12345 View Drop Down
Groupie
Groupie


Joined: 14 Apr 09
Online Status: Offline
Posts: 99 		Post Options Post Options   Quote womble12345 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 10 at 12:10pm

Originally posted by zailor

so for the europe hull would that gelcoat filler thing I put in a link further up be the right thing to fix it?

I think its the right stuff but the wrong colour, try ringing whoever originally made it and get the right colour.
Back to Top
dave.blakesley View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 25 Mar 08
Location: United Kingdom
Online Status: Offline
Posts: 314 		Post Options Post Options   Quote dave.blakesley Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 10 at 12:51pm
Normally if you quote the hull number to whoever made the boat they will be able to tell you exactly the colour of gelcoat used, and they will be able to either sell you the pigment for white gelcoat or some pre-mixed filler.
Back to Top
Rupert View Drop Down
Really should get out more
Really should get out more


Joined: 11 Aug 04
Location: Whitefriars sc
Online Status: Offline
Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 10 at 3:12pm
Or, if you really don't care about colour, car body filler will do the job and keep the water out.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
Back to Top
 Post Reply Post Reply Page  <123>

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