Mold Making

Alumilite has everything you need to create successful silicone molds at home.

How to Create Successful Molds

1. Know the Basics

Welcome to Mold Making 101, Alumilite's free online class! Learn mold making basics, from making a mold box to mixing your silicone to de-molding your finished product.

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2. Choose Your Silicone

There are a lot of silicone options out there - but how do you know which one is right for you and your project? That's where we come in.

Browse Silicone Options

Download Decision Tree

Amazing Line

This platinum cured silicone de-molds in 30 minutes time, having you well on your way to producing various castings with incredible detail. Amazing Mold Maker can be used to create castings using epoxy, resin, concrete, wax, soaps, chocolates, and much more!

Amazing Mold Maker mold making silicone bottles and box.

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This easy to use 2-part silicone mold putty is set and ready for use in just under 20 min. Create reproductions of small items with ease. This is a great mold making material for classroom use, as it sets so quickly. Students can create a mold and cast an object within one class period.

Alumilite's Amazing Mold Putty silicone 2/3 pound kit

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This tin-based silicone rubber, sets at room temperature and produces a flexible, high tear-strength rubber. Amazing Mold Rubber is a good choice for one piece molds as well as multi-piece molds. It cures quickly and gives excellent detail.

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Platinum Line

This extremely flexible platinum based mold making rubber is an excellent choice for castings that have extreme undercuts or negative space. A rubber mold made out of Plat 10 is perfect for delicate castings like chocolates and fondant.

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This platinum based silicone is soft and pliable. It maintains its structure well, making it a great choice for one or two piece molds.

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Having flexibility and medium hardness, this platinum based silicone mold is also an excellent choice for one or two piece molds, offering a bit more rigidity than Plat 25.

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This platinum based silicone offers a stiff and stable option perfect for making molds that need precision and accuracy, such as auto parts. Works for simple one or two piece molds.

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PlatSil 73-60 is a two-part liquid silicone mold-making material that cures to a blue rubber, ideal for strong molds that require limited flexibility.

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High Strength Line

This mold making rubber is the perfect choice for molds needing to be more rigid. It’s a tin-based silicone with great tear strength, working well for both one piece and two piece molds.

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This tin-based silicone mold making rubber is the perfect product for all types of molds. It’s soft enough to create perfect undercuts, but strong enough to handle securely aligned 2-piece molds.

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This is the tin-based silicone with the most flexibility, while still picking up excellent detail. It's a great choice for making molds of parts with severe undercuts and negative space.

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Silicone Decision Tree

Download Decision Tree

Amazing Line

The Amazing line of mold making products are truly that....Amazing! With their quick curing times and ease of use, you can be on your way to making a mold in no time. Amazing Mold Maker and Amazing Mold Putty are also FDA compliant, making them a fantastic choice for molding with food.

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Platinum Line

The Platinum series from Alumilte are platinum based silicones having a range of flexibility. Plat 10, with a shore hardness of 10, is the most flexible of the series. It’s a perfect choice for castings with extreme undercuts or negative space. Plat 55, which is the least flexible of the series, having a shore hardness of 55, is best for reproducing complex parts like in automotive applications.

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This platinum based silicone is soft and pliable. It maintains its structure well, making it a great choice for one or two piece molds.

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Having flexibility and medium hardness, this platinum based silicone mold is also an excellent choice for one or two piece molds, offering a bit more rigidity than Plat 25.

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This platinum based silicone offers a stiff and stable option perfect for making molds that need precision and accuracy, such as auto parts. Works for simple one or two piece molds.

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This mold making rubber is the perfect choice for molds needing to be more rigid. It’s a tin-based silicone with great tear strength, working well for both one piece and two piece molds.

High Strength Line

Alumilite's High Strength series are all tin-based silicones producing a range of rigidity and with excellent tear strength. High Strength 1 is the stiffest of the line, High Strength 2 having a bit more flexibility, and High Strength 3 being the most flexible making it a perfect choice when working with castings with severe undercuts and negative space.

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This mold making rubber is the perfect choice for molds needing to be more rigid. It’s a tin-based silicone with great tear strength, working well for both one piece and two piece molds.

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This tin-based silicone mold making rubber is the perfect product for all types of molds. It’s soft enough to create perfect undercuts, but strong enough to handle securely aligned 2-piece molds.

Alumilite's High Strength 3 tin-based silicone 5 pound kit with a pink silicone prop brick mold

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This is the tin-based silicone with the most flexibility, while still picking up excellent detail. It's a great choice for making molds of parts with severe undercuts and negative space.

3. Grab Your Supplies

Silicone isn't the only thing you'll need on your mold-making journey. From mold-box materials, to Rubber to Rubber, Alumilite has everything you need to successfully finish your project.

Shop Mold Making Accessories

Accessories

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Rubber to Rubber Mold Release ensures two-piece silicone molds do not bond together when pouring the second half. It works best when brushed on between the first and second pours. Apply 2-3 coats, allowing each coat to fully dry before reapplying.

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Make your own custom silicone mold boxes quickly and efficiently using these corrugated plastic strips. Score one side of the plastic wherever a bend is needed. Bond with superglue or Hot Melt glue.

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Meet your new favorite tool – the hot melt glue gun. Ideal for sealing your mold boxes, securing items to your molds, and any other projects you can dream up.

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Use Synthetic Modeling Clay for creating original patterns, sealing mold boxes, and claying up two-part molds. This modeling clay never dries out and can be used over and over again. Non-toxic clay does not contain sulfur, will not inhibit platinum-based silicones.

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These 14-inch stir sticks are ideal for mixing together large quantities of Alumilite urethane and epoxy resins.

Mold Making Accessories

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Make your own custom silicone mold boxes quickly and efficiently using these corrugated plastic strips. Score one side of the plastic wherever a bend is needed. Bond with superglue or Hot Melt glue.

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Meet your new favorite tool – the hot melt glue gun. Ideal for sealing your mold boxes, securing items to your molds, and any other projects you can dream up.

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These 14-inch stir sticks are ideal for mixing together large quantities of Alumilite urethane and epoxy resins.

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Mold Making

Alumilite has everything you need to create successful silicone molds at home.

How to Create Successful Molds

1. Know the Basics

2. Choose Your Silicone

Amazing Line

Platinum Line

High Strength Line

Silicone Decision Tree

Amazing Line

Platinum Line

High Strength Line

3. Grab Your Supplies

Accessories

Mold Making Accessories

Videos