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fillets

Printed From: Yachts and Yachting Online
Category: Dinghy classes
Forum Name: Dinghy development
Forum Discription: The latest moves in the dinghy market
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=10872
Printed Date: 16 Jul 25 at 7:31pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com


Topic: fillets
Posted By: ifoxwell
Subject: fillets
Date Posted: 10 May 13 at 6:00pm
Wooden boat that is to be painted inside and out

Want to put some fillets on the ribs inside for both asthetic and water flow reasons but not strength

Is there anything like decorators caulking available to the boat building community that I can use.


Ian

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RS300



Replies:
Posted By: Pierre
Date Posted: 10 May 13 at 6:23pm
I'd use bathroom sealant. 
Should do the job.


Posted By: Noah
Date Posted: 10 May 13 at 6:53pm
Epoxy with microballoons in the mix for volume and colloidal silica to stop it sagging - stays where its put while it goes off.


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Nick
D-Zero 316



Posted By: ifoxwell
Date Posted: 10 May 13 at 7:06pm
I normally use epoxy with filler just seems expensive over kill for the application

And sealant might work but im not so sure about paint sticking to it.

What to do...

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RS300


Posted By: Jack Sparrow
Date Posted: 10 May 13 at 7:20pm
dont paint t then, get the colour bathroom sealant your boat is painted.

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Posted By: tick
Date Posted: 10 May 13 at 8:08pm
You can paint over water based bathroom sealant or flexible decorators filler but not silicone.


Posted By: winging it
Date Posted: 10 May 13 at 8:35pm
I would use sika flex, without a doubt, though you could just use plastic padding marine filler, it won't last forever, but it will do what you want.

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the same, but different...



Posted By: Neal_g
Date Posted: 10 May 13 at 8:55pm

I'd go for P38 car body filler cheap and very paintable



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(Redoubt Sc)
Miracle 4040
GP14 13407

Crewsaver phase 2 range now available to buy online on at http://www.gibsonsails.com


Posted By: Paramedic
Date Posted: 10 May 13 at 9:22pm
I'd suggest that pretty much anything other than an epoxy/microballons mix is going to create a water trap timebomb and potentially cause far more problems costing more money than is saved by not using epoxy in the first place.

Stoppers such as P38 are too brittle and will crack letting in water. Bathroom sealant will shrink and fall off, Sikkaflex or other PU adhesive will fare better but is simply not designed for this job and I wouldn't use it.

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Posted By: tick
Date Posted: 10 May 13 at 10:05pm
I suppose that the purpose of the restoration is the important thing. I 'restored' an old Merlin that was beyond restoration just to get it sailing again. It took me about 2 months and cost about £40.00 rather than years and £1000's. We had good fun. Oddly enough the original owners son bought it off me for sentimental reasons for £500. I did however recommend that he did not take it out in anything above an F3! A better outcome than it rotting in a garden in Barrow in Furness.


Posted By: winging it
Date Posted: 11 May 13 at 9:16am
I would have thought that Sikaflex DC, whewre the DC stands for Deck Caulking was pretty obviously designed for caulking?  And like tick says, it depends what you want.  No point putting lipstick on a pig. 


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the same, but different...



Posted By: RS400atC
Date Posted: 11 May 13 at 11:05am
A trade polyurethane sealant will be a fraction of the cost of marine sikaflex.
How big does the fillet need to be though?
Epoxy goes a long way.
With sikaflex, you will need to prime with poly varnish or something?


Posted By: ifoxwell
Date Posted: 13 May 13 at 10:53am
Thanks for all the reply's. A lot of good, useful information.

So to fill in some of the blanks.

The boat in question is a new build, but something that will probably spend most of its life hanging in the roof of the garage.

Its a variation on a West Mersia Duckpunt, made famous by the exploits of Dylon Winter.

Mines made of a thinner ply but I've added buoyancy tanks front and rear to add a little stiffness but more importantly some safety for when I am bobbing up and down on the Medway.

Based on everyone's comments I'm going to seal it all with the pond sealer (see separate thread) and then use the Sikaflex to fillet with. The fillets don't need to be big but I want to seal all the odd gaps to make it look better and to reduce the number of places water can seep into and rot.

I'll let you know how it works out

Ian




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RS300


Posted By: tick
Date Posted: 13 May 13 at 12:12pm
Is that one of those things you lay in and clamp a big gun on the foredeck full of nails and scrap metal?



Posted By: Rupert
Date Posted: 13 May 13 at 3:17pm
Like shooting a sitting duck?

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686


Posted By: ifoxwell
Date Posted: 13 May 13 at 3:20pm
My interest is only in the ability to sail in 6" of water.

Ian


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RS300



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