5 Mold Making Techniques to Rule to World

How to Use Different Mold Making Methods

The purpose of mold making is to duplicate your creations either in the same material the original is made in or into another material. But first you have to make your mold. The mold making process is very versatile, so you can choose how you do it based upon what your master object is shaped like. Typically, you don’t want to make your mold any more complicated than you need. Here are 5 techniques that can be used:

1.       Pour Block mold method: This is the go-to method. Because ComposiMold is clear. You can always make it into a cut block mold. The technique is a simple: place your master into a mold box and pour ComposiMold over it. It gives you a sense of what the mold will look like, and you can always re-melt it and make it a different way.  If your part is lightweight and will float in water, hot glue it to the bottom of the container.

Pour Block Mold Making Technique

2.       Cut block mold: Almost as easy as the pour block method. Make a pour block method and then cut out your master where you want the parting line to be. Because ComposiMold is a clear rubber that you can cut with scissors or a knife, we just pour it over the part, allow the ComposiMold to cool, and cut the mold in half. Sounds easy, and for the most part it is. You will still have to worry about where to make the parting line and keeping the part together while casting the new piece. There is no reason why more complex molds with three or pieces cannot be made using this same techniques.

 

3.     The Press Mold: With ImPRESSive Putty, just press your Putty over the part you are molding. The nice part about the rubber molding putty is that you don’t need a mold box. However, you will lose a little detail on the corners.

 The Brush-on Mold or Paint on Mold: Paint-on molds are made by painting the molding material directly onto a model’s surface. The advantages of a paint-on mold are that it is possible to use less material and you can mold parts that you could not do with a typical molding process. An example where you may need to use a Paint-on mold is making a mold of something attached to a wall.

5.       2 Part Mold Making Method: In many cases, it is best to prepare the mold in two parts. This may be because there are specific undercuts that you need to mold around, you want to make a parting line that is not straight, or you want a three part mold. The two part mold is well suited for dramatic undercuts that would leave spaces or voids in your mold. Use clay or polymer clay to build up around the figurine. Build up the area to the point where you want the parting line in the mold. This parting line is selected to allow the mold to be separated easily. After the clay is completed, lightly cover the master part and clay with a mold release. Pour ComposiMold over the Master and clay to make the first half of your mold. When the ComposiMold has solidified, pull off the first half of the mold, flip your Master and pour ComposiMold over the part again being sure to have mold release in between the layers, and in larger molds chill your first ComposiMold half before pouring the second. After the second ComposiMold half has solidified, pull it off of the Master. Pull out the Master part from the mold. You are now ready to make your casting.

 

Two Part Molds Mold Making Techniques

For a much more in depth methodology, please download your copy of the “Setting You Up For Mold Making and Casting Success” at http://composimold.com/Ebook.html

Mold Making Techniques

For More Information Visit: 

www.ComposiMold.com

www.Facebook.com/ComposiMold

www.YouTube.com/ComposiMold 

2 Part Mold with ComposiMold's PowerMold

In the video below you will see how we used ComposiMold's PowerMold, Reusable Mold Making Material, to make a two part mold of a dog figurine and how to cast it with urethane casting resin. Below the video you can also read the instructions and tips for successfully recreating this project.

• The process begins by preparing your master for molding by sealing with a shellac or urethane spray if necessary. Spray with mold release and let the mold release dry if necessary. Then spray with Bubble Buster to reduce bubbles from adhering to your master.

• Place your master in a mold box. If necessary, glue the part down with hot glue or use some polymer clay to hold it in place.

• Melt the PowerMold. For this little amount of PowerMold, we melted it for 2 minutes, using 1 minute intervals (with a 700 watt microwave). Times will vary depending on where you are and the microwave you are using.

• After pouring your PowerMold around your part to make the mold, let it cool to solidify.

• Cut the mold with a knife, exacto knife, or razor blade. This cutting line will be your parting line so be careful and always cut away from you for safety.

• Mix the two urethane parts together as directed. This urethane was mixed in equal parts by volume. The syringe helps get the urethane resin into the small openings of the feet.

• Let the urethane cure. Time will vary depending on the type of urethane. For fast curing resins or larger castings, you may want to cool the PowerMold in the freezer first to reduce the exotherm and protect your mold.

• When finished, admire your castings. PowerMold can be remelted to make new molds whenever you are ready.

For More Information visit: www.ComposiMold.com www.Facebook.com/ComposiMold www.YouTube.com/ComposiMold order at www.ComposiTherm.com