Uploaded May 2022 | Updated September 2026, 1 week ago

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In this YouTube Mold Making and Casting Live™ Presentation, Janessa Portner will demonstrate how to make clear, translucent and encapsulated castings using Smooth-On's line of clear Rubbers, and Plastics. She will also show you how to achieve a variety of spectacular colors and finishing effects for your castings!

00:00 - Beginning
00:28 - Intro
1:18 - Why Clear Castings
3:35 - Materials Used
4:35 - Casting Examples
10:58 - Textured Translucent Examples
16:12 - Bubble Entrapment Examples
23:17 - Casting Demo
41:38 - Key Caps Question
43:42 - Demo Results
45:26 - Large Casting Demo
57:15 - Rotocasting Question
59:31 - Vacuum Degassing
1:05:12 - Negative Cavity Mold Example
1:08:30 - Vacuum Chamber vs. Pressure Chamber
1:09:53 - Pressure Cast Examples
1:11:26 - Pressure Casting Multi Part Mold
1:14:24 - Colorant Examples
1:23:39 - Encapsulation
1:27:25 - Reducing Encapsulation Layers
1:31:46 - Encapsulation Examples
1:35:16 - Mold Box Material
1:40:40 - Epoxy vs. Urethane Moisture Sensitivity
1:46:00 - Different Types of Encapsulation
1:49:55 - Silicone Encapsulation
1:52:21 - Encapso K Demo
1:59:25 - Rubber Glass Example
2:01:27 - SMASH Plastic Example
2:03:13 Cryptolyte Example


#resin #casting #clear #moldmaking #encapsulation

Materials Used in Demos:

• Rubber Glass - smooth-on.com/products/rubber-glass
• Smooth Cast 325 - smooth-on.com/products/smooth-cast-325
• Crystal Clear 200 - smooth-on.com/products/crystal-clear-200
• EpoxAcast 690 - smooth-on.com/products/epoxacast-690

FAQ - Are these materials safe to use? smooth-on.com/support/faq/120

Video and Demonstration Links List:

Color Comparison:
smooth-on.com/tutorials/urethane-colorant-comparison-uvo-pigment-strong-tint

Smooth-Cast 325 Series:
smooth-on.com/tutorials/casting-quickies-smooth-cast-325-colormatch-urethane-resin
smooth-on.com/tutorials/diy-decorative-resin-tray-smooth-cast-326

smooth-on.com/tutorials/creating-flaming-skull

Crystal Clear Series:
smooth-on.com/tutorials/crystal-clear-conch-sea-shell-2-mold-mold-star-15-silicone-rubber

smooth-on.com/tutorials/mold-making-challenge-clear-casting-pine-cone

Creating Large Resin Sculpture
smooth-on.com/spotlight/creating-large-resin-sculpture-presented-figuration-studios

Equipment/Processes:

smooth-on.com/tutorials/eliminate-bubbles-resin-castings-pressure-casting
smooth-on.com/tutorials/resin-casting-tutorial-reduce-bubbles-casting-vacuum-degassing-resin
smooth-on.com/product-line/pressure-vacuum-chambers
smooth-on.com/tutorials/vacuum-degas-urethane-resin-smooth-cast-326

Tarbender:
smooth-on.com/tutorials/high-gloss-themed-table-tarbender-epoxy

EpoxAcast 690:
smooth-on.com/tutorials/colored-pencil-bowl-epoxacoat-690-epoxy
smooth-on.com/tutorials/river-table-clear-epoxy-casting-resin-reclaimed-wood

Polishing EpoxAcast 690 FAQ:
smooth-on.com/support/faq/195

Encapsulation: Compilation:
smooth-on.com/howto/encapsulation-display
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What We Will Learn:

Material Options For Clear Castings
Comparison Between Textured, Matte, and Glossy Mold Surfaces
Model Preparation For Clear Casting Molds
Best Practices For Bubble Free Castings With Vacuum Degassing And Pressure Casting Equipment
Options For Adding Colors, Tints, And Fillers For Casting Effects
Clear Encapsulation with Epoxies
Special Flexible Materials For Potting Applications And Ice Effects

Adult Supervision Required
Keep Out Of Reach Of Children
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