GENERAL MOULD MAKING

Moldmaking Tutorial: Plaster Bandage Mother Mold Over A PG35 Rubber Mold

In this video we explain the nuances of making a bandage shell over a Polyurethane rubber mold. The rubber mold was made using PolyGel 35 brushable rubber.

Mold Making Tutorial: 1 Piece Gel-10 Skull Mold

In this video tutorial we show a simple way to make a 1 piece, seamless mold of a human skull. The mold was made using Gel-10 rtv silicone and thickened with TinThix silicone thickener.

Mold Making: Gel-10 1 Piece Mold

Quick overview of mold process using Gel-10 silicone. This is a great method for fast, inexpensive, molds. I use this method a lot when a quick mold is needed on site.

Mold Making With Glove Mold Process

Mold making process using a seamless glove mold made with Platsil Gel-10. This is a great process for molding simple figure sculpts or portrait busts.

Making a brush on mold with silicone

This is the brush on mold process for 71-20 silicone. We used this method to minimize the amount of rubber required for this piece.

Moldmaking and Casting: Brush-on silicone mold tips

This is a simple mold we made of a light switch cover to illustrate thickening 73-25 silicone. We used TinThix thixotropic additive to thicken 73-25 to a brushable paste. Once the 73-25 cured we used some of our Extra fast set plaster bandages to create a shell to support the rubber mold. EZ Flo casting resin was then used to create a plastic duplicate of the original.

Brush on silicone mold tutorial

Here are some extra tips for making brushed on silicone molds. Though we have covered the basic process of making a brush-on, RTV silicone mold in previous videos, I thought some extra tips might be in order.

Moldmaking Tutorial: Brush-on PolyGel 35 Rubber Mold

This is a 1 piece head mold made with PolyGel 35. PG 35 rubber molds are ideal for reproducing hydrocal faces and heads for prosthetic work.

Mold Making Tutorial: Tips For Platinum Silicone mold making

In this mold-making tutorial we mold a nut and bolt using 71-11 PlatSil silicone to demonstrate some basic methods and precautions when making platinum silicone molds.

Silicone Mold Making Tutorial: 73-20 poured blanket mold

In this tutorial we show how to make a poured blanket mold using 73-20 PlatSil silicone.

Mould Making & Casting: urethane mold process for candles, soap, plaster, or concrete

This is the process for making simple rubber block molds using urethane rubber. In this video we used 74-41 rubber but you could also use 74-20 for delicate patterns, or 74-45 for casting abrasive concrete.

Mold Making Tutorial: Silicone Mold with 71-11

Making a mold under pressure to eliminate air bubbles. This technique may be used on some low viscosity silicones when pressure casting will be done in the mold. 71-11 is a low viscosity silicone with high tear strength with a Shore A value of 15.

Mold Making: venting a 2 piece mold

Here's the venting process for a 2 piece silicone mold. The vents here are simple but the same rules apply to more complicated parts. The mold was made in a previous video using Platsil 73-15. The cast was made using EZ Flo 60 casting resin.

Mold Making: 2 piece mold 73.15

2 piece Silicone mold made with PlatSil 73-15. We used a plywood frame to make a 2 piece silicone mold for casting EZ Flo 60 prop scissors. Mold was made with low viscosity platinum silicone.

Mold Making: 7325 Block Mold

Basic block mold made with new 73-25 platinum silicone. 73-25 is a new super-low viscosity silicone with a 15 minute working time and a 4 hr demold time.

How To Make a Block Mold of a Four Legged Animal

One of the more common mold making application questions that we receive is how to mold and cast a four legged animal, such as a horse with different leg positions and flowing tail. The key to being successful and subsequently getting a perfect reproduction is to know where to properly place air vents and also where to make your extraction cut line.

How To Build a Mold Box

Making a mold box for mold making. The mold box serves as a containment field for the mold rubber.

Making a Plasti‑Paste® Support Shell for a Brush‑On Mold

Mold Making Tutorial: How to Make a Support Shell for a Silicone Brush-On Mold. This mold making tutorial video shows how to make a support shell for a brush on silicone mold using Plasti-Paste trowelable plastic.

How To Repair a Torn Silicone Brush On Mold

In this tutorial, we show how to use Sil-Poxy® silicone adhesive with a special reinforcement fabric to repair a torn mold liner. The reinforcement fabric holds the mold together, while the adhesive forms a strong, flexible, permanent bond.

How to Make a Silicone Brush On Mold of a 3D Object

This mold making tutorial video shows how to make a brush on silicone mold using Rebound™ 25. The finished mold can be used for casting resin, wax, foam, and many other materials.

How to make a 1-piece Silicone Cut Mold

Mold Star® 15 is perfect for experienced mold makers or people just starting out. It is an easy to use silicone rubber that offers performance other mold making rubbers do not

How To Make a Seamless Resin Casting Using Dragon Skin® 10 NV

This tutorial shows how a seamless mold can be made using Dragon Skin® 10 NV silicone rubber. Dragon Skin® 10 NV is very soft and stretchy, in many cases a mold can be made of a complicated model without the need for a cut seam.

Mold Making Tutorial: How to Make a Cavity Pour or Blanket Mold

Making a Cavity Pour Mold with Mold Max 30 RTV Silicone Rubber from Smooth-On. Our model is a hand-carved hard wood 3-dimensional figure.

Making a Simple Block Mold Using Mold Star® 15 Silicone

Mold Star® 15 is an easy to use Shore 15A platinum silicone that is mixed 1A:1B by volume. It features a relatively low viscosity and vacuum degassing is not required for most applications.

How To Make a Two Piece Silicone Mold of a Knife

We demonstrate using Mold Star 30 silicone, a platinum silicone for mold making. The finished knife replica is cast in TASK 8 liquid plastic resin. TASK 8 is a strong casting resin which can be easily painted.

How To Make a 2 Part Silicone Mold Using Mold Star™ 15

This video outlines the 2-part block mold making technique using Mold Star™ 15 silicone rubber. Mold Star™ 15 is a platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary).

How To Use Plasti‑Paste™ EPOXY to Make a Support Shell

In this video, we demonstrate how Plasti-Paste™ EPOXY can be used to make a support shell for a brush mold. Benefits of using Plasti-Paste™ EPOXY are that it is not affected by moisture, has a longer working time than other Plasti-Paste materials, and less material is needed to get the same durability.

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