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 Rank: Beginner Level 3  Groups: Registered
Joined: 16/11/2015 Posts: 23 Points: 72 Location: At the edge of reality
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Has any one tried using these expanding fillers to pack the bow & stern spaces to facilitate better plank/ hull fitting as opposed to Balsa wood or similar. This is my first trip into this world so apologies if there is some astoundingly obvious issue I am missing. I used quite a bit of it following converting garage into workshop, & found it easy & quick to use.
Any thoughts?
Cheers
James
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Hi James, never used expanding foam but would have thought it would be great as insulation but wouldn't have the strength to be of any benefit when it comes to the rigors of planking a hull.  .. I may be wrong but it wouldn't be my preferred choice. Just my thoughts of course. Regards Alan
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 I have never used it on a model ship but I have in the building trade. Trouble is it is mucky stuff and hasn't got a lot of strength plus as it expands it might push the frames out of place  Hope this helps rgd Martyn Building ?
Completed. Soliei Royal . Sovereign of the Seas . Virginia . Scotland . San Felipe . Corel vasa , Santisima Trinadad X section , Vasa
Next Build ?
When sailors have good wine, They think themselves in heaven for the time. John Baltharpe
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 Rank: Vice-Master      Groups: Registered
Joined: 07/01/2015 Posts: 856 Points: 2,479 Location: Sevenoaks, UK
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I wouldn't use it. This is vile stuff that used incorrectly can distort the door frame or even crack a wall, there's too much risk of it distorting the shape of the hull. And then it's too porous to really hold the glue or pins so you are not getting much benefit. Balsa method is quick and easy enough in my opinion... Any images I post on my personal builds are free to be used and shared under Creative Commons Attribution license, which means you can do what you want with them, on the condition you mention I'm the author.
Happy building :-) http://www.model-space.com/gb/
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Hi James. I'd have to agree with Alan and Martyn. I've used the foam to repair a fibre-glass life sized tiger which had a polystyrene core and its really difficult to gauge just how much to squirt in, I usually ended up with a horror scene of a tiger with its brains oozing out!  If you wanted to try the foam approach you could use the green blocks of foam sold in florists for flower arrangements. It would be easy to slice it up into suitable widths to fill in between the ribs and also simple to carve and sand it to follow the contours. The only problem would be the lack of strength as mentioned with the expanding foam. You might improve that situation with a few thick coats of PVA over the foam with each allowed to dry out before attempting to plank over, although I doubt if it would ever be as strong as balsa. Robin First wooden ship: The Grimsby 12 Gun 'Frigate' by Constructo Second: Bounty DelPrado Part Works Third: HMS Victory DelPrado Part Works 1/100 scale Diorama of the Battle of the Brandywine from the American Revolutionary War Diorama of the Battle of New Falkland (unfinished sci-fi), Great War Centenary Diorama of the Messines Ridge Assault Index for the Victory diary is on page 1
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 Rank: Elite  Groups: Registered
Joined: 13/02/2011 Posts: 2,239 Points: 6,837 Location: East Sussex
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Hi James, Just picked up your post on Expanding Fillers, having used it on my Victory build in the early days I must say I had no problems, and with out damage, I used because of the size of the hull, I am currently building the Norden which is half the size of the Vic and used Balsa to fill the hull, I think it was the size of the Victory Hull that made me think about using it, but I haven't seen any other ship build yet that has gone that way.    Regards Trev. Work in progress: Tombstone (Scratch) - San Francisco 2. -The Mayflower ( scratch by plan).
OcCre- Santa-Maria (Kit).
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Rank: Beginner Level 3 Groups: Registered
Joined: 16/11/2015 Posts: 23 Points: 72 Location: At the edge of reality
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Thank you one and all, plenty to ponder
Regards
James
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