Hi guys, I've been successfully casting polyester resin in silicone molds for years, and have, believe it or not pulled over a hundred good casts from a single...
Millicent; there is a urethane mold release that is made by Price-Driscoll that leaves a nice matte finish, and parts are supposed to be paintable right out of...
Hello, I am new to the group and this is my first post. First off, I have really enjoyed reading all of the informative posts about molding/ casting, and I've...
Several things to mention Craig: first, you should only have to pre-heat your mold to about 150 degrees, but be certain that it is heated throughly; like...
... I figure that the key problem is that the thin walled sections do not have enough mass to generate and retain heat to properly cure. So some of the other...
Thanks for the reply Ray: I heated up the mold to 190 guessing that it would hold in the heat longer in the pressure pot and help the urethane to cure faster. ...
Craig, interesting discussion going here... please keep us updated with your experiments/trials/tests... Does your part lend itself to rotational casting? I...
I have some old resin (~2years) distributed by Bragdon Enterprises which while it still works seems to stiffen up much faster than fresh stuff. in fact it...
Hi all, I want to cast chess pieces, but i'm a noob on casting so if someone could help me it'll be great ! I don't know how to proceed exactly, what materials...
... Your stuck, anything over about 6 months is usually toast, Damn I need to clean my chemical closet...... It also depends on the resin, I have some ...
Hi, I have never considered rotational casting. That may be something I will consider once this project pays for its self. I finally pulled my parts this...
Can any one tell where to buy resin material for casting small parts and people? Will be painting the casting when done David [Non-text portions of this...
excuse me clark i have a lak of vocabulary, english is not my native language so....mystakes mystakes... By "polished glass aspect", i mean maybe "brushed...
I would try something like Smooth On's Crystal Clear and sand blast the ones I wanted opaque with something soft like walnut shell. You will probably need a...
... some ... You just never know until you try it out. I have some year-old OOMOO- 30 where part A has thickened to the viscosity of warm chewing gum. I only...
Craig, I am not familiar with Freeman's materials; I use Silicones GI-1000 for nearly all of my molds and BJB TC852 for most casting jobs. You have the ...
Jim, Thanks for the helpful hints. I have been having some trouble with air in my other cast urethane part and I will try your method of mixing a little extra...
Hey Craig; the most probable reason that molds deform when being held together by either tape, rubberbands, etc, is because people simply try to get by with ...
yep ! Acid etched !! Thanks to you, i know now. I've take a look on the web, and it's exactly that. I want the same finish (if possible for low cost) cia...
Nicholas, Our french should be so good. I joined a french speaking toy train group a couple years ago. I'm trying to learn and hone my language skills. LOL. I...
hi John You're from Louisiana ? ("Once ruled by the french and discovered by deBienville and deIberville") Please write me something in french, whatever you...
I know what you mean. I speak, read and write German, but the older I get, the less fluent, because you don'e have anyone to practice with and most Germans in...
Craig, As noted in another post, platinum cure RTV may be another option for you, though a little more expensive and it does require heat and pressure to cure ...
Hey Jim King; I have always been curious (from a scientific standpoint) about exactly what you are speaking of; ie, "does the amount and size of sprues in a...
