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Author Topic: A Long Shot - aluminium in a tube?  (Read 3747 times)

RickF

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A Long Shot - aluminium in a tube?
« on: July 12, 2008, 11:53:29 pm »

Not sure if this is the right place to ask this question, but I'm sure Martin will redirect it if it isn't. It's not even a model boat question, so I'm really taking a chance!

I'm currently rebuilding an engine to replace the one in my 1933 Austin 7. The majority of the castings (except the cylinder block) are aluminium. One has a nasty gash at one end and, although it is perfectly usable, it is also very visible. I can buy a replacement for about £70, but I'm a mean old *****, so I'm thinking about a cosmetic repair.

About 30 years ago we had something in the RAF which was, in effect, a two-part resin "metal" which looked like aluminium when it hardened. I only remember it being called "A and B", because that's what the tubes of resin/hardener were labelled.

So, my question is this. Does anyone know what this product was called? Is it still available? Or is there a modern alternative?I'm sure someone on here will have the answer.

Rick
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riggers24

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Re: A Long Shot - aluminium in a tube?
« Reply #1 on: July 13, 2008, 12:15:51 am »

Have a look at the loctite range.www.loctite.co.uk and the the products to look at are 3463, 3464, 3465 & 3466

Hope this helps

Riggers
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RickF

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Re: A Long Shot - aluminium in a tube?
« Reply #2 on: July 13, 2008, 01:05:43 am »

That was quick - 3465 looks like what I need. Just have to find a supplier.

Thanks Riggers.

Rick
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mrsgoggins

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Re: A Long Shot - aluminium in a tube?
« Reply #3 on: July 14, 2008, 05:21:08 pm »

Belzona do a range of fillers for castings, they are good but expensive.

Good luck
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cdsc123

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Re: A Long Shot - aluminium in a tube?
« Reply #4 on: July 14, 2008, 06:09:07 pm »

Rick I think the name of the product you remember from your RAF days is Devcon. As far as I know you can still get it.
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chingdevil

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Re: A Long Shot - aluminium in a tube?
« Reply #5 on: July 14, 2008, 08:09:54 pm »

Rick

Find your nearest Brammer branch, they are distributors for all the Loctite range. Should have no problem, if you do PM me and I will contact the branch I use at work.


Brian
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RickF

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Re: A Long Shot - aluminium in a tube?
« Reply #6 on: July 15, 2008, 12:06:12 am »

Thanks for all your help, guys.

I remember the name "Devcon", but as an adhesive -  I don't connect it with "A and B". I currently have my spies out looking for Loctite and anticipate a result soon.

Thanks

Rick
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Bryan Young

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Re: A Long Shot - aluminium in a tube?
« Reply #7 on: July 27, 2008, 08:20:18 pm »

I think the "Belzona" is the answer. Comes in various metals. Our Engineers used to swear by it (and not at it).
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Bunkerbarge

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Re: A Long Shot - aluminium in a tube?
« Reply #8 on: July 27, 2008, 09:17:44 pm »

The one Bryan is thinking of is Belzona molecular, it is a two part epoxy putty with metllic particles in it. 

Devcon comes in many shapes and sizes but tends to be more of a liquid rather than a putty.  All of these products though would be extreemly difficult to match colour in an existing casting, as well as trying to match the existing surface finish, so if you are doing this for purely cosmetic purposes I think you will have a bit of a challenge making it invisible.

Not knowing how deep the gouge is have you thought of polishing it out? or perhaps painting the casting when it is filled?

Don't forget to really rough up the surface of the original to give the putty something to key to.
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Sub driver

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Re: A Long Shot - aluminium in a tube?
« Reply #9 on: August 04, 2008, 06:55:08 pm »

Why not get the aluminium gash welded ? then just file it flat etc and polish it up ??
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RickF

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Re: A Long Shot - aluminium in a tube?
« Reply #10 on: August 04, 2008, 07:30:56 pm »

Thanks for all your advice, guys. I actually found a useable casting tucked away in my gash box, so I don't need to try and repair the damaged one.

Rick
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