If so, we'd really like to know what release agent you use and what the life span is (average of course) on your molds. It seems like we're lucky to get 10 or...
24799
Robert Hayes
deuce492002
Apr 1, 2005 3:22 pm
Alia, I have tried all brands of mold release and finally found the one that does what it says it will do. Polyester Parfilm from Price Driscoll. Use it wet or...
24800
Mike Brose
puppetsnprops
Apr 1, 2005 3:47 pm
What are you casting in the latex rubber mold? On Thu, 31 Mar 2005 20:57:14 -0800 David Harmon <robocat@...>...
24801
Spanosnu@...
spano_snu
Apr 1, 2005 5:24 pm
Hi Bob, I tried accessing your web site to find out more about Polyester Parfilm from Price Driscoll,but received this message instead? Does AOL pose a virus...
24802
Barry McClelland
locoartist42
Apr 1, 2005 5:28 pm
Hi All, I find 3 things affect mold life, age, leaching of mold release out of the RTV, and resin. The resin gets absorbed into the RTV, making it hard. The ...
24803
Robert Hayes
deuce492002
Apr 2, 2005 2:16 am
Rick, am a bit puzzled myself!!! Clicked the link you enclosed and it worked. Got rid of AOL and I.E> and went to Mozilla/ Firefox. Safer. Send me your email...
24804
David Harmon
robocat@...
Apr 2, 2005 3:12 am
... Plaster of paris. I'm not worried about the plaster, but would silicone "oil" help the rubber mold or cause it to disintegrate? ...
24805
Spanosnu@...
spano_snu
Apr 2, 2005 5:36 am
In a message dated 4/1/2005 9:17:21 PM Eastern Standard Time, steckel@... writes: www.bigscalemodelers.com Hi Bob, Thanks for your reply. I tried copying...
24806
Robert Hayes
deuce492002
Apr 2, 2005 12:59 pm
Public Home folder | Molderone | Fotki.com Some more pix of molding/ casting here,Rick. Price Driscoll will send you out a free can of Parfilm when you call...
24807
Peter Sheres
psheres
Apr 2, 2005 3:34 pm
Silicone oil is good for rejuvenating silicone it does not do the same for other mold materials. While the concept of coating a mold will always help the life...
24808
dking551
Apr 2, 2005 3:51 pm
I just degass the silicone for molding and cast under pressure, I"ve never had problems with the mold deforming. You just need to make sure you get the air of...
24809
dking551
Apr 2, 2005 3:53 pm
I think this format is much better once you get used to it. I can get through my forums much quicker now. David ... format that was implemented last week, I...
24810
rmcrane
bitterended
Apr 2, 2005 4:15 pm
Peter I cast exclusively in urethane. I use Urethane Parfilm. I see many references to Polyester Parfilm on this list but rarely any reference to Urethane...
24811
Peter Sheres
psheres
Apr 2, 2005 7:28 pm
I concur that your assumption is probably true that they are more appropriate for the respective resin. My guess is the carrier that they use in the...
24812
Mike Brose
puppetsnprops
Apr 2, 2005 7:54 pm
In general it is best to avoid petroleum based products when it comes to natural latex molds. They can cause them to eventually disintegrate. Silicone oil...
24813
firebrand100
Apr 3, 2005 12:18 am
HI all, I wonder if anyone knows of a low odour resin that can be used for casting solid toy cars? (Dimensions : about 3" x 4" x 3") The pong from the resin...
24814
Jean Whipple
Jean_Alia
Apr 3, 2005 2:46 am
Thanks for the info, Bob, we'll give this a try! Peace, Alia...
24815
Peter Sheres
psheres
Apr 3, 2005 3:24 am
Try a polyurethane resin. The odor is negligible. I cast parts in the house without upsetting the wife because of the odor. Peter Sheres Ball Consulting, Ltd...
24816
Bernard Arnest
whoffmann64
Apr 3, 2005 7:21 am
Hi, I was wondering what it might cost in materials to cast a life-size figure in concrete? A life-size bust? Oh-- it will be modelled in water-based clay,...
24817
tcs
compleatscul...
Apr 3, 2005 12:04 pm
... Yes, but you should still be aware that no smell does not mean no toxicity, You should still use common sense when dealing with any of these products and...
24818
Chris Wray
lunaticmodels
Apr 3, 2005 2:58 pm
Concrete can only be polished like stone if the mix is correct. You want a high cement content, and hard aggregate. I recommend mixing your own, perhaps with...
24819
Peter Sheres
psheres
Apr 3, 2005 3:45 pm
While I agree no chemical product is toxic free and yes you should always refer to the MSDS for toxic information and precautions, I was referring to the...
24820
Tom Banwell
mentalblow
Apr 3, 2005 3:49 pm
Does anyone know of a urethane casting resin that always comes out of the mold glossy? Even if the molded model was matte? Thanks, Tom Tom Banwell Designs Inc ...
24821
Pete Brown (YahooGrou...
psychlist1972
Apr 3, 2005 3:57 pm
I don't see how that would be possible, unless the resin had severe surface tension and an inability to pick up detail. Resins generally pick up all the detail...
24822
Tom Banwell
mentalblow
Apr 3, 2005 4:28 pm
I wouldn't have thought it possible either, except I experienced it several years ago with one of the Smooth On resins. I can't remember which one, and since I...
24823
Mike Brose
puppetsnprops
Apr 3, 2005 6:46 pm
I thought it was one of their clear resins used in conjuction with a special coating or release as I seem to recall. I'll have to look at one of the ol'...
24824
firebrand100
Apr 3, 2005 7:46 pm
Hi all, Thanks for the advice on my previous post - I think I'll try a change over to Polyurethane resin to reduce the stench. One other question - we need a...
24825
Tom Banwell
mentalblow
Apr 3, 2005 7:58 pm
Polyester will typically come out unevenly shiny and needs to be given a post-cast acetone scrub to remove the shine. Urethane on the other hand will reflect...
24826
tcs
compleatscul...
Apr 3, 2005 8:02 pm
Mike, You can use the precote (7, 11 & 21) with the resins. It works with the clears and the opaques....
24827
tcs
compleatscul...
Apr 3, 2005 8:12 pm
You can try dusting the mold with the chalk, if it is fine enough, or use ATH (aluminum trihydrate) Both will leave a matte surface....
