This is a sensible sounding solution. However, I am trying to get a flat surface over the top of the master, to be suitable for clamping with a bit of mdf....
... you had ... blow sky ... I will keep an eye on that. Ive had it running at 80psi and it seems fine. Its a thick old cast pot Im sure it will be fine but...
In a message dated 31/10/2005 22:37:03 GMT Standard Time, freshwatermodels@... writes: "diamond dust" ???? I dont think its actually diamond dust, its a...
In a message dated 01/11/2005 05:39:47 GMT Standard Time, spinal_2k@... writes: I recently bought some Lead Free KA Alloy to use when casting lightbars...
Bob; once you mix the activator in with the silicone, it will "go off" under water! Don't worry about that; it will cure just fine under your cover. Ray K. ...
Subject: Re: Re: Pressure casting psi Mark, if you are planning on putting 50psi into an old pressure cooker, you had better stand in the next room! That old...
... better stand in the next room! That old cooker will most probably blow sky... From: "mark_klute_craggs" <arthurshilling@...> ... Its a thick old...
... For reasons that I won't go into here, the Pressure Vessel Code requires that all non fired vessels be tested at 1.5 times their normal, operating...
I do similar to what Ray does, in proportions, only I use Naphtha and Vaseline. I also use it in situations where I don't want ANYTHING on the master (just the...
If Mark has had his pressure vessel up to 80 psi in the past, then it's most probably NOT a "pressure cooker" per se. A real pressure cooker wouldn't withstand...
I have been making candles and sometimes use plaster molds for prototyping. Occassionally I have a heck of a time getting the candles out of the plaster in...
Goal is to expand (chemically) a foam into a mold to obtain a replica - without the difficulty of EPS expansion; - without the fragility of ceramic coating of...
... Something that might help here (though it may just cause other problems) would be to put a layer od neswprint or cloth pulled tight over a piece of mdf....
Gabe, I like being an alchemist too ;-) As for the wax's soluability in mineral spirits, I would try some straight spirits on your wax formula to see what it...
Good point. Some folks may hear that pressure CANNERS (a very similar-looking item) handle higher pressure, and therefore consider them; but they max out at...
Hi Mike, Ted, Ray and Robert Thanks very much for your responses, the variation in which, proves that there's more than one approach to skinning a cat,...
"Varsol" is most probably a brand-name. Read the contents and if it is what you want, it will say "mineral spirits" as it's main ingredient. Better yet, just...
Thanks Ray, I'll give your suggestions a try. By the way, I have seen some of your phone castings and I have to say that is some mighty impressive work. ...
Hello: I am trying to make poliurethane resin minuatures, but I always get bubbles, I made the air exits bual in some places alway I get bubbles. I am thinking...
Hmm. Well you guys have certainly made me take another look into it. Maybe by the time I have another mould to do I will get something right for the job. The...
Sorry to keep harping about this, but you are playing Russian Roulette with a fully loaded gun there Mark (is it Mark or Arthur?). When you say you can't see...
Just for safety reference for issuses like this one, is there someone on the list who could set up a cast aluminum pressure cooker like the one in question,...
As a registered professional engineer and former ASME code pressure vessel designer I advise all you guys thinking about pressure cookers the following: You...
I couldn't tell if you guys are in the UK or not too, but here we can get liquid vaseline. A friend of mine got some at a local garden and craft shop where...
