This was just featured in the Magazine 'N-Scale'. This was done differently and still very well. You want the current Nov/Dec 2010 issue. While I'm not an...
34484
John
myjakjs
Dec 16, 2010 8:27 pm
It's aluminum 1.000 diameter with the id bored out to about .800. Having a Sherline mill & lathe was a big help on this project. John...
34485
PaulP
pfpackman
Dec 17, 2010 5:07 pm
Hello all and seasons greetings. I really enjoy this group and have gotten a lot of good information from the members. I am making several two part RTV...
34486
rmcrane
bitterended
Dec 17, 2010 5:16 pm
Paul A soupy mixture of Vaseline and mineral spirits ... [Non-text portions of this message have been removed]...
34487
Ralph Ramirez
rrramirez67
Dec 17, 2010 11:34 pm
petroleum jelly or dishwashing soap diluted with water works...
34488
Ray K
kleenax
Dec 17, 2010 11:37 pm
Hey Paul; I've been using the home-brewed recipe for over 10 years now with 100% success. Here's how I make it: 1. Take whatever vessel that you want to use,...
34489
John
nuggles58
Dec 18, 2010 10:19 am
I use powdered graphite. The bottle I have is over 10 years old and I have still only used half! You can see easily where the parting is. John....
34490
Mike Brose
puppetsnprops
Dec 18, 2010 3:32 pm
I use about a 5 to 1 mix of Vaseline to mineral spirits by weight (gram scale). Takes a little while for the Vaseline to completely dissolve (thats normal) in...
34491
Robert Hayes
deuce492002
Dec 18, 2010 3:58 pm
To avoid the muss and fuss of clean-up of the mold,my long-time go-to mold release is from Price-Driscoll. they make nothing BUT mold release. It leaves no...
34492
Ray K
kleenax
Dec 20, 2010 4:22 am
I believe this thread was for RTV-to-RTV mold releases. Price-Driscoll mfrs many many types of mold releases, and you MUST be sure of using the correct...
34493
JJ
cec999
Dec 20, 2010 6:43 pm
Did anyone used successfully drum made of steel or plastic to get down to 29hg? I did look at drums online and did not see specs about thickness but wonder if...
34494
Ted Quick
rim_molder
Dec 20, 2010 8:50 pm
I don't see any way that this can be done with a standard industrial drum. First, the structure is designed to hold how ever many gallons of fluid they hold,...
34495
RodM
tbird643
Dec 20, 2010 10:49 pm
Hi all. I made a large precast planter with some very flat surfaces. Color is jet black, and I have waxed it, really nice sheen, but I see swirls in it from...
34496
Ken Burney
ken_the_guy_...
Dec 21, 2010 12:34 am
It doesn't take much negative pressure to collapse a drum. I have seen them collapse after being closed when it's hot and sit out in the cold. I feel sure...
34497
Charles Anderson
charlesian2000
Dec 21, 2010 2:14 am
... Yep, the mop is too coarse, or the wax is too soft. ... Get some furniture polish, apply with a soft lint free cloth. Wait a little until the wax becomes...
34498
J. mendoza
mndzblue
Dec 21, 2010 7:18 am
Anytime you have lines, scratches, or imperfections, they may be removed if the layer is thick enough. This applies to metal, wood, plastic, glass, painted ...
34499
J. mendoza
mndzblue
Dec 21, 2010 7:38 am
i cast less than 8 in. in length. i use a clear vacuum chamber from Costco , used for vacuum storing food. it came in a 3 piece set of vacuum for food storage....
34500
J. mendoza
mndzblue
Dec 21, 2010 7:48 am
i'm in the works of starting a casting operation. I have an eye for detail and familiar with Smooth-On products. What are you willing to spend or what kind of...
34501
Charles Anderson
charlesian2000
Dec 21, 2010 10:08 am
... FYI: You can get 3000, and it's almost like sanding with nothing, but extremely useful if you have the odd Japanese sword laying around ;-) CIA...
34502
Mike Bauers
mwbauers
Dec 21, 2010 11:48 am
There is an infamous picture floating around on the Internet of a large RR tank car that was steam cleaned inside, the valves closed, and the very large tank...
34503
Jim Rogers
jrstudioboss
Dec 21, 2010 5:03 pm
Try this stuff, Mudd Off <http://www.speedpartz.com/muddoff.htm> , it was made for sprint cars, but works on concrete forms too jr ... -- [Non-text portions of...
34504
jmccann@...
johncharlesm...
Dec 21, 2010 6:47 pm
That was interesting, especially the video, what amazing power our atmosphere has when there is an imbalance of pressure. John ... From: Mike Bauers Sent:...
34505
JJ
cec999
Dec 23, 2010 6:55 am
How much will heavily aired polyester resin expand when put in vacuum chamber? (assuming pressure will go down fairly quickly) I don't have a chamber yet but...
34506
Ray K
kleenax
Dec 23, 2010 6:59 am
Figure at least 6 times the volume for expansion when de-airing. ... -- Ray Kotke http://telephonecreations.com [Non-text portions of this message have been...
34507
J. mendoza
mndzblue
Dec 30, 2010 7:53 am
I realize it's an old post but I will respond. Smooth-ON is one of many places that offer products, tutorial, seminars, for mold and casting from small to...
34508
Rob de Bie
rob_de_bie
Dec 30, 2010 7:37 pm
As far as I know, no respirator will stop the isocyanate component, which is the nastiest of the chemicals in resin casting. I think air evacuation is the best...
34509
Mike Jackson
alumicaster
Dec 31, 2010 1:10 am
Which is why both my vacuum pump and pressure chamber exhaust outside the house. - Mike ... As far as I know, no respirator will stop the isocyanate component,...
34510
J. mendoza
mndzblue
Dec 31, 2010 5:50 am
I use 3M respirator mask used for Auto Painting, using Urethane Paint mostly. I don't smell paint coming through mask filters. There is no paint in my nose ...
34511
Ted Quick
rim_molder
Dec 31, 2010 1:51 pm
The other thing that should be mentioned here is that isocyanates will react with ANY "HO" groups they encounter (that's usually spelled WATER). Air filters...
34512
Mike Bauers
mwbauers
Dec 31, 2010 3:45 pm
Get the MSDS for the specific Smooth-on products you use, and the safety warnings on those and you'll be fine. However, if you discover you are not following...
