Weighing & Mixing Resins & Silicone Rubber The Right Way

We demonstrate proper agitating, weighing, and mixing procedures. Both 1:1 ratio and uneven ratio materials are covered. Then we explain how to calculate your material requirements for a job.

00:00 - Introduction
00:14 - Stirring Unfilled Materials
00:30 - Agitating Filled Materials
02:10 - Uneven Mix Ratio Materials (2 cup method)
04:03 - Applying Urethane Protectant
04:17 - Calculating Material Requirements

This is an updated version of the video originally entitled Weighing & Mixing
Liquid Tooling Materials. We’ve gone back to up-convert and color correct the original footage; plus update the graphics and some of the content.


Freeman Mfg & Supply is a materials supplier. The thousands of hours dedicated to producing this series was done in service to our industry. If you are looking for any of the materials shown, please visit us at http://freemansupply.com (our primary website for professionals) or http://miapoxy.com (curated for the DIY market).

Finally, this video was originally part of a compilation DVD entitled Making Parts, Patterns, Tools, & Molds. You can see all of those videos (in sequence and in context) on our dedicated video website at https://www.FreemanVideos.com. Or check out our YouTube Playlists. Or find your next video of interest here:

Moldmaking & Casting Videos:

1 - Using Rigid Fast-Cast Urethanes for Casting Both Molds & Parts
   • Using Rigid Fast-Cast Urethanes for Castin...  
2 - Making Flexible Molds with Urethane Rubber
   • Making Flexible Molds with Urethane Rubber  
3 - Simple Silicone Rubber Molds (Without a Parting Line)
   • Simple Silicone Rubber Molds (Without a Pa...  
4 - Two-Part Silicone Rubber Molds (Forming a Straight Parting Line)
   • Two-Part Silicone Rubber Molds (Forming a ...  
5 - Moldmaking With Clear Silicone Rubber
   • Moldmaking With Clear Silicone Rubber  
6 - Making Molds & Casting Thin Walled Parts (& Using Color Tints)
   • Making Molds & Casting Thin Walled Parts (...  
7 - Making Two-Part Silicone Rubber Molds with Complex Parting Lines
https://tinyurl.com/spf9z8hs
8 - Tips & Tricks for Moldmaking & Casting Parts with Intricate Detail
   • Tips & Tricks for Moldmaking & Casting Par...  
9 - Making Simple Multi-Cavity Molds
   • Making Simple Multi-Cavity Molds  
10 - Surface Casting Method #1 (featuring Gap Wax)
   • Surface Casting Method #1 (featuring Gap Wax)  
11 - Surface Casting Method #2 (With Brushable Urethane Casting Resin)
   • Surface Casting Method #2 (With Brushable ...  
12 - Using Fillers & Pourable Foam to Lighten a Casting (& More)
https://tinyurl.com/2cav5em5


Laminate Toolmaking & Composite Parts Videos:

1 - Laminating with Fiberglass & Epoxy - The Basics
   • Laminating with Fiberglass & Epoxy - The B...  
2 - Building a Fiberglass & Epoxy Laminate Mold
   • Building a Fiberglass & Epoxy Laminate Mold  
3 - Vacuum Bagging a Carbon Fiber/Composite Part
https://tinyurl.com/auf6d2d8
4 - Building a Laminate Tool with Epoxy Paste
   • Building a Laminate Tool with Epoxy Paste  
5 - Rapid Tool Making with the Repro Laminating System
   • Rapid Tool Making with the Repro Laminatin...  
6 - Making a Simple Glove Mold
   • Making a Simple Glove Mold  

Preparing Models, Molds, & Materials Videos:

1 - Prevent Your Castings & Models From Sticking to Your Molds
   • Prevent Your Castings & Models From Sticki...  
2 - Weighing & Mixing Resins & Silicone Rubber The Right Way
   • Weighing & Mixing Resins & Silicone Rubber...  
3 - Eliminate Entrapped Air in Molds & Castings
   • Eliminate Entrapped Air in Molds & Castings  
4 - How NOT to Ruin Silicone Rubber When Making Molds
https://tinyurl.com/32uwjv3z