Hi Andrew! I checked out your site, and I have to say, for a first time sculptor, you did a great job! As for your head mold, you may be able to minimize air...
1245
Steve Kann
stevek@xxxxxx.xxxx
Jan 7, 1999 3:46 pm
... I'm not an expert (just poured my first castings yesterday), but I used a clay wall, and put mold release on the clay as well as the master. That seemed to...
1246
Steve Kann
stevek@xxxxxx.xxxx
Jan 7, 1999 3:54 pm
What do people reccommend to use to clean up uncured RTV? I've used mineral spirits with moderate success, it seems to slowly dissolve it, but since the stuff...
1247
Steve Kann
stevek@xxxxxx.xxxx
Jan 7, 1999 4:03 pm
... Boone, About how fast does this kind of machine rotate? Couldn't one make something similar from an old (record) turntable, with some clamps and weights? ...
1248
boone@xxxxx.xxxxxxxxx...
boone@xxxxx.xxxxxxxxx...
Jan 7, 1999 5:23 pm
... Steve K: Well, I think your problem is the choice of metal. The RTV products don't seem to be able to handle much over about 350-400, at least not for...
1249
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 5:53 pm
I used clay to cover half of my pattern to make a two part mold. I had two problems with this: a) It's really hard to clean the clay off of areas you don't ...
1250
Tom Williams
Tom@xxxxxxxxxxxxxxx.x...
Jan 7, 1999 6:06 pm
Steve, I use what kerosene ..or domestic heating oil, and can also clean any brushes etc. that have been contaminated with the rubber. (Then clean the ...
1251
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 6:53 pm
Has anyone ever heard of a "Hi Temp" RTV?I have a guy who is saying, that with making multiple pulls from a small mold,it can be done using a certain kind of...
1252
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 6:57 pm
Tom, Kerosene will eat up RTV or even partially cured RTV?Is this true?I sure hope it is!I have been looking for some way to dissolve this stuff for years!! Ed...
1253
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 6:57 pm
Tom, Kerosene will eat up RTV or even partially cured RTV?Is this true?I sure hope it is!I have been looking for some way to dissolve this stuff for years!! Ed...
1254
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 6:57 pm
Tom, Kerosene will eat up RTV or even partially cured RTV?Is this true?I sure hope it is!I have been looking for some way to dissolve this stuff for years!! Ed...
1255
Tom Williams
Tom@xxxxxxxxxxxxxxx.x...
Jan 7, 1999 7:51 pm
Ed, well, Gasoline is superior, but Kero makes for a safer & slightly inferior alternative! Honest! Tom ... From: Ed Diceman <dice1@...> To:...
1256
Steve Kann
stevek@xxxxxx.xxxx
Jan 7, 1999 8:17 pm
... The MicroMark one to one product is supposedly suitable for their type R metal, which is very similar in melt temp to the tin/antimony alloy I used. I did...
1257
boone@xxxxx.xxxxxxxxx...
boone@xxxxx.xxxxxxxxx...
Jan 7, 1999 8:43 pm
... I have not tried anything but the lowest melt products, similar to the 160 and 250 metals you note. I have no need for the strength or machinability in...
1258
VRBass
vrbass@xxxx.xxxx
Jan 7, 1999 8:52 pm
... OK, I have already forgotten where the Kerr machine came from. I'm familiar with the radial casters, and they have some significant downsides for the...
1259
boone@xxxxx.xxxxxxxxx...
boone@xxxxx.xxxxxxxxx...
Jan 7, 1999 9:04 pm
... Vance: Not so about the vulcanized mold in the Coffey Caster. I use standard RTV material in a two part mold poured in the standard fashion. There are...
1260
Ed Diceman
dice1@xxxxxxx.xxxx
Jan 7, 1999 9:16 pm
Tom, Thanks MUCHO!!I WILL be testing this out!I appreciate it! :) Ed, well, Gasoline is superior, but Kero makes for a safer & slightly inferior alternative!...
1261
-MWS-
Hauptman@xxxxxxxxxx.x...
Jan 7, 1999 9:43 pm
On Thu, 7 Jan 1999, Steve Kann wrote: [snip] ... I can't remember off hand if the 160 MM metal is lead-based, but I do know for a fact that the 280 is...
1262
Steve Kann
stevek@xxxxxx.xxxx
Jan 7, 1999 9:56 pm
... Their web site lists it as containing lead. Their 280 is listed as lead free. The only other good source I know for these types of metals is mcmaster. They...
1263
Dan Pikulski
danpik@xxxxx.xxxx
Jan 7, 1999 10:05 pm
The highest temp. RTV I know of is from BJB enterprises. Their TC5050 will reportedly handle 850 degrees F. I don't know how many pulls this will yield though....
1264
-MWS-
Hauptman@xxxxxxxxxx.x...
Jan 7, 1999 10:11 pm
On Thu, 7 Jan 1999, Steve Kann wrote: [snip] ... You need to wander over to Belmont Metal's website (www.belmontmetals.com) and put in some literature...
1265
William Adams
adams@xxxxxxxx.xxxx
Jan 7, 1999 11:31 pm
... MM's Type 280 metal (lead free) passes the fingernail test. I can't make a mark in it without a tool (though it files nicely). It does not bend well, but...
1266
Mike Bauers
mwbauers@xxxx.xxxxxx....
Jan 7, 1999 10:56 pm
Steve Kann wrote: ... Steve, If these are complete ends, and only ends...... look in the archives for some posts on what I termed 'block/gill' molds. No clay...
1267
boone@xxxxx.xxxxxxxxx...
boone@xxxxx.xxxxxxxxx...
Jan 8, 1999 12:03 am
... Mike: This sounds like an interesting technique. I tried this once but had great difficulty in orienting my cut. In my case it was a very small part,...
1268
Peter Berghs
pberghs@xxxx.xxxx
Jan 8, 1999 12:12 am
Small Parts Inc. also sells low-temp metal ingots. Peter B...
1269
Mike Bauers
mwbauers@xxxx.xxxxxx....
Jan 7, 1999 11:33 pm
... You're on the right track. It's the position of the master that makes it easy to remove. You glue the master to a base plate, wall around that and pour the...
1270
Elohs@xxx.xxx
Jan 8, 1999 1:20 am
In a message dated 1/7/99 10:54:52 AM Eastern Standard Time, stevek@... writes: << What do people reccommend to use to clean up uncured RTV? >> I've...
1271
laocoon1@xxxxxxxxx.xxx
Jan 8, 1999 2:01 am
Isopropyl alcohol works well as a solvent for RTV silicone (it is also good for smoothing-out silicone brushups.) Instead of rags or paper towels, I've found ...
1272
Paul Kish
kishndx@xxx.xxxx
Jan 8, 1999 2:10 am
Hello to all, Glad to be aboard, after only a few days on the list I feel at home, recognizing many names from the model railroading world. I'm fascinated by...
1273
boone@xxxxx.xxxxxxxxx...
boone@xxxxx.xxxxxxxxx...
Jan 8, 1999 2:24 am
... I know a little about lost wax and ... Paul: You bet we would like some input on this subject!! At least I sure would. To date my experiments have been...
