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Author Topic: Casting Resin  (Read 2825 times)

Shipmate60

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Casting Resin
« on: September 15, 2007, 12:12:41 PM »

I have run out of casting resin (polyester).
Where can I get some more in the small quantities used for casting model boat fittings.
My old supplier has dissapeared.

Bob
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tigertiger

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Re: Casting Resin
« Reply #1 on: September 15, 2007, 12:25:25 PM »

I have run out of casting resin (polyester).
Where can I get some more in the small quantities used for casting model boat fittings.
My old supplier has dissapeared.

Bob

Hi Shipmate.

When you get some, would you like to do a tutorial in the how to threads?

Or would anyone else like to for that matter?

TT
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HS93 (RIP)

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Re: Casting Resin
« Reply #2 on: September 15, 2007, 01:02:44 PM »

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Bluebird v2

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Re: Casting Resin
« Reply #3 on: September 15, 2007, 02:21:07 PM »

Hi ya Bob

I know the stuff you are after is the proper Casting Resin but, for small items, such as shrapnel matting, range detector domes (old style-rugby ball shape) - I have used the Halfords cheap and nasty polyester resin.   Just mix 3/4 of the amount of hardener into the resin to slow the hardening process down, thus avoiding generating too much heat in the item being moulded.

aye
john e
bluebird

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malcolmfrary

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Re: Casting Resin
« Reply #4 on: September 15, 2007, 03:09:55 PM »

Hobbycraft stores?
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Umi_Ryuzuki

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Re: Casting Resin
« Reply #5 on: September 15, 2007, 05:55:13 PM »

I have run out of casting resin (polyester).
Where can I get some more in the small quantities used for casting model boat fittings.
My old supplier has dissapeared.

Bob

Hi Shipmate.

When you get some, would you like to do a tutorial in the how to threads?


Or would anyone else like to for that matter?

TT

Did one (or two) here... 8)

http://groups.msn.com/QueensOwnAxisCommand/yourwebpage.msnw

I prefer Polyurethane resin, as it is often thinner(less viscosity) and flows better.
Less smell, less brittle, a much better product if you can fiind it in the UK... O0

Lets see,...UK, ...maybe..
http://www.mouldlife.co.uk/
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Bryan Young

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Re: Casting Resin
« Reply #6 on: September 15, 2007, 06:19:51 PM »

I have run out of casting resin (polyester).
Where can I get some more in the small quantities used for casting model boat fittings.
My old supplier has dissapeared.

Bob
Not so much interested in the resin...but I would be very interested in how, and what with, you make moulds. BY.
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Colin Bishop

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Re: Casting Resin
« Reply #7 on: September 15, 2007, 07:02:16 PM »

I picked up a carton of this the other day - haven't used it yet though. Seems a bit similar to the Meltamould meltable rubber I used years ago but with a much lower melting point.

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Shipmate60

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Re: Casting Resin
« Reply #8 on: September 15, 2007, 09:34:33 PM »

Bryan,
I am going to cast 30 superstructure wondows for my 1/72 Prinz Eugen.
As they will be a 1 off I will use plasticine hardened in the freezer overnight as long as the small amounts wont get too warm.

Bob
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omra85

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Re: Casting Resin
« Reply #9 on: September 15, 2007, 10:17:14 PM »

I don't know what the minimum amount is but you could try
http://www.polyfibre.co.uk/product.asp

Danny
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Shipmate60

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Re: Casting Resin
« Reply #10 on: September 16, 2007, 12:54:41 PM »

I am going for a radical solution this time.
I am going to use Resin W, the wood glue. It dries opaque and windows are only 1/16 inch deep.
I will post pics on here after it all dries.

Bob
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BarryM

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Re: Casting Resin
« Reply #11 on: September 16, 2007, 04:40:49 PM »

Try http://www.cfsnet.co.uk/ and http://www.tiranti.co.uk/. A scout around most online model shops/eBay will also come up with the goods.

Barry M
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Shipmate60

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Re: Casting Resin
« Reply #12 on: September 16, 2007, 05:27:08 PM »

The casting resin I had was mixed 50/50 with hardener, much easier to mix small quantities.

Bob
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Bryan Young

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Re: Casting Resin
« Reply #13 on: September 16, 2007, 07:35:03 PM »

Bryan,
I am going to cast 30 superstructure wondows for my 1/72 Prinz Eugen.
As they will be a 1 off I will use plasticine hardened in the freezer overnight as long as the small amounts wont get too warm.

Bob
I have used plasticene a few times...quite successfully...but as you say, they are for "one-off" mouldings. If you build to a regular scale then a lot of the fittings are going to be "standard".
For my actual mouldings I tend to use "dental" acrylic...the sort of stuff that my palate is made from. Comes in 2 parts. One is a pink powder that is finer than talc, and the liquid part smells good enough to keep you off the "wacky-baccy" for ever! But when mixed and poured into a mould and allowed to set (just a few minutes) it dries as hard as iron. Not cheap, but for those making multiple castings it probably would work out cheaper and better than the overpriced material that modellers are charged.
Brings me back to the moulding material.
A mould needs to be flexible and reasonably long lasting. "Proper" silicone moulding material seems to have a very short shelf-life and becomes impossibly expensive. Has anyone out there used Silicon-Sealant as a moulding material? It seems to have a lot of the properties needed. Must experiment! BY.
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Guy Bagley

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Re: Casting Resin
« Reply #14 on: September 17, 2007, 09:32:35 AM »


Is this the sort of stuff.

Peter

http://stores.ebay.co.uk/Mould-Making-and-Casting-Supplies

 i have used tomps for years, there polyester resin is fantastic, the service is good and you mix at 50 / 50 % ratio.... i have no hesitation in recommending tomps.....
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Shipmate60

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Re: Casting Resin
« Reply #15 on: September 17, 2007, 09:50:04 AM »

Thanks all

Bob
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john strapp

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Re: Casting Resin
« Reply #16 on: September 17, 2007, 10:33:00 PM »

Where can you buy dental plastic for resin casting, and at what price?
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Bryan Young

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Re: Casting Resin
« Reply #17 on: September 18, 2007, 03:51:15 PM »

Where can you buy dental plastic for resin casting, and at what price?
I get mine through a retired dental technician, but I would guess that the various telephone directories will have info. on dental labs and dental equipment suppliers. It is not cheap by any means but even in the minimum quantities available will be sufficient to keep you going for many years...and it seems to last indefinately.BY.
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Arrow5

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Re: Casting Resin
« Reply #18 on: September 19, 2007, 07:58:54 AM »

Try Alex Tiranti for all casting materials and alternatives to Polyester. Worth a look at the catalogue for tips. www.tiranti.com
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