AWGB Woodturning Forum
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News:
Visit our website at
www.awgb.co.uk
Home
Help
Search
Calendar
Login
Register
AWGB Woodturning Forum
»
General Category
»
General Discussion
»
Pewter moulds
« previous
next »
Print
Pages: [
1
]
Author
Topic: Pewter moulds (Read 4764 times)
bodrighywood
platinum
Posts: 3631
Pewter moulds
«
on:
February 13, 2013, 09:14:00 AM »
I read somewhere that you can make moulds for pewter from plasticine or the equivalent. Does anyone know if this is true as if so it would allow for much more intricate shapes and designs. I don't want to try it unless I know for sure, molten pewter running all over the workshop doesn't really appeal.
Pete
Logged
Turners don't make mistakes, they have design opportunities
Bryan Milham
Administrator
platinum
Posts: 4500
I’ve had my patience tested; I’m negative
Re: Pewter moulds
«
Reply #1 on:
February 13, 2013, 10:21:37 AM »
There was a discussion on this about 18 months ago. If you put Pewter in the search box (above) it will bring up all threads with the word in,
here's a link to get you going;
http://www.awgb.co.uk/awgbforum/index.php/topic,287.0.html
Logged
Oh Lord, Lead me not into temptation…
...Oh who am I kidding, follow me, I know a shortcut!
john taylor
bronze
Posts: 209
Re: Pewter moulds
«
Reply #2 on:
February 13, 2013, 12:44:04 PM »
Cuttle fish is the usual material used for smallish items and is regularly available from pet shops.
john
Logged
Eric Harvey
platinum
Posts: 967
Craters project no.1
Re: Pewter moulds
«
Reply #3 on:
February 13, 2013, 04:30:42 PM »
dry wood works quite well,from what I`ve seen at demo`s,just turn to the shape you want then cast the pewter straight into the wooden mould,regards,
Eric.
Logged
welcome to my woodturning world
Paul Hannaby
platinum
Posts: 1149
Re: Pewter moulds
«
Reply #4 on:
February 13, 2013, 05:17:59 PM »
I think plasticine melts at fairly low temperatures so probably wouldn't be too good for pewter.
You can make your own silicone moulds using something like this
http://www.greatart.co.uk/SILICONE%20RUBBER%20RTV%20HB-moulding-material-moulds.htm
Logged
Regards
Paul
www.facebook.com/CreativeWoodturning
bodrighywood
platinum
Posts: 3631
Re: Pewter moulds
«
Reply #5 on:
February 13, 2013, 05:26:37 PM »
I have some Celtic seals that I want to cast in pewter and use as medallions on goblets or bowls. Plasticine would be ideal as I can imprint the seal into it. I read that the melting point of plasticine was a good few degrees higher than pewter which is around the 140 degree mark. Using wood either limits you to simple shapes or involves a lot of fancy carving which would take ages and boost prices through the roof. As far as I cantell there is no reference to it on the forum. I may have an answer from someone. If so watch this space LOL.
Pete
Logged
Turners don't make mistakes, they have design opportunities
thebowlerhattedturner
Guest
Re: Pewter moulds
«
Reply #6 on:
February 13, 2013, 05:38:13 PM »
Hello Pete,
something I have done before now is make a dough with flour and water , add the imprint and bake.
regards
john BHT
Logged
malcy
gold
Posts: 456
Re: Pewter moulds
«
Reply #7 on:
February 13, 2013, 08:27:13 PM »
You can make a mould using curable silicone available from somewhere like Hobbycraft. Dentists use silicone like this for teeth moulds as it sets very quickly and can be removed from the object in just a few minutes. I am pretty certain that this will stand up to molten pewter. Malcolm.
Logged
Paul Hannaby
platinum
Posts: 1149
Re: Pewter moulds
«
Reply #8 on:
February 13, 2013, 11:58:26 PM »
The casting pewter I use has a melting point of around 230C so I don't think I would want to rely on a plasticine mould.
Logged
Regards
Paul
www.facebook.com/CreativeWoodturning
bodrighywood
platinum
Posts: 3631
Re: Pewter moulds
«
Reply #9 on:
February 14, 2013, 09:28:16 AM »
Paul: I better check my facts a bit if 240 is the case as that is a heck of a lot more than I had researched. I agree, plasticine at that temperature may be a tad risky LOL.
Pete
Logged
Turners don't make mistakes, they have design opportunities
BarryMobbs
Guest
Re: Pewter moulds
«
Reply #10 on:
February 14, 2013, 01:32:39 PM »
Hello Pete,
I think it is 240C as well. Barry
Logged
Paul Disdle
Guest
Re: Pewter moulds
«
Reply #11 on:
February 14, 2013, 01:49:33 PM »
It depends on the composition of the pewter. 230-240C is at the top end of the pewter melting point spectrum.
Paul
Logged
Print
Pages: [
1
]
« previous
next »
AWGB Woodturning Forum
»
General Category
»
General Discussion
»
Pewter moulds