How to Cast your own Plastic Parts
8 1/2 x 11 , 30 page report, stapled with folder
Price $12.95 Buy Me
Less can be better!... Sometimes you don't need to learn about every casting material, you just want to know which one is best for your application, and how to use it. This concise 30 page report is like having an expert friend who just tells you what you need to know to get the job done right. The author makes specific recommendations for materials and suppliers, so you don't have to learn by trial and error like I did. If you are an inventor, scale modeler or hobbyist, this rare information can save you time.
Molding and casting is a huge topic covering many different materials and techniques. If you are trying to broaden your knowledge base and understand all of the choices available, then look at our #002 "Molding and Casting Guides", or our #003 "Prop Builders Molding and Casting" books. These two books should be in your reference library if you plan to do this a lot.
What is Castable Plastic?Start with a quick overview of the five most common categories of casting resins, Polyester, Epoxy, Urethanes, Silicone and Acrylic. Learn their basic working properties and characteristics, to help you choose the right one for your project. Get some good tips on mixing and how to eliminate bubbles.
Choosing a Master and Planning the MoldCarve something yourself or reproduce an existing object. With a flexible mold, you can cast a rigid object with fine detail and severe undercuts, then simply peel or flex the mold away to release it. Choose a mold material such as Silicone or Urethane, and cast a solid "Block" mold or a "Glove" mold with a plaster backup. Many illustrations will show you how to make a simple adjustable mold box and help you decide on whether you need a simple split mold, or a multi part mold. Learn about release agents and tricks for indexing the mold halves.
Sources for Casting materialsI have also tried many casting materials over the years and its amazing how some are so much more user friendly than others. Something as simple as the mixing ratio can make all the difference. The easiest ones have a 50/50 mix with two different colors, so its easier to see. Some resins are great when cured, but they use a ridiculous high mix ratio with only a few drops of clear catalyst. You never know if its mixed completely. Some resins hold air bubbles while others are thinner and release them easily.
Here you get recommendations for the best suppliers with the easiest to use products, and some of them offer wonderful "Users Guides" and nice catalogs that make product selection easy. This information alone is worth the modest price of this report.