Mold Making and Casting Tip: Rotational Casting Machine

Mold making and casting with a rotational casting machine. Using the manetron rotational casting machine to make an EZ Flo 120 resin cast. Special thanks to Ed of Falls Mold & Art for letting us cast on his machine.
Ed provides a variety of services for those who don't own a casting machine.

Category:

Howto & Style

Tags:

• casting
• rotational
• resin
• plastic
• platsil
• silicone
• rubber
• molding
• moldmaking
• spfx
• special
• effects
• model
• building
• sculpt

[innerbreed]

Hi Mitch,

Iv been casting EZflo120 for a few months and this is the first time i have seen baby powered used in the mould just before casting.

im working on a project that will involve painting (you can find this on the (EffectsLab) website. "Animatronic Alien Head" Anyway i would like to use this technique of powder coating the mould before casting, but i will also need a "smooth shiny" finish on certain areas. would you recommend just sanding these smoother areas down after casting?

[brickintheyard]

@innerbreed If you want areas to be shiny, don't powder them. The powder will transfer to the cast part for a matte surface.

[sparksmemphis]

is the finished product hollow? if so about how thick is the shell? how sturdy is it? can you use some sort of vinyl instead of resin?

[brickintheyard]

EZ 120 is a tough, impact resistant resin. This part was about 1/4" thick and very strong.

[chahueto]

@brickintheyard CAN I USE EZ 120 IN LATEX MOLDS? WILL IT WORK?

[brickintheyard]

@chahueto I think I answered your question on another video comment thread but here it is again: I have not tried casting EZ Flo 120 into a latex mold so I do not know. I have customers who have done casting like that but I have no idea what release they used.

[Toyman1982]

i tell ya, you did right in using Plat-Cure Silicone for the mold. i HATE using tin-cure silicone for molds! TIN-CURE SUCKS!!!

[brickintheyard]

Metal mold? No. Silicone mold? Yes. We have several videos dealing with silicone moldmaking.

[biscayne427]

i'm trying to reproduce a vinyl shifter boot for an automobile, which was originally made in a rotational mold. Do you know the best way to make a metal mold from the original vinyl piece?

[shortattentionspan1]

You have an excellent speaking voice and keep the explanation moving with the video. Great video I learned something today, thank you.

Oh one more thing,could I make my composter barrel with this method? or do I need a heated rotomolder in an oven?it is on you tube "rotating composter barrel" (the blue one)