The Sylmasta Casting Kit XL contains more of the products needed to start creating high-quality casts through the process of resin casting

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Resin cast Ford pickup tricks made using casting resin and reusable silicone moulds from the Sylmasta Casting Kit

Resin Casting & Silicone Mould Making

Sylmasta casting and mould making products are used by model makers, kit builders and industrial users to produce detailed reusable silicone moulds and high quality resin casts. Resin, moulding rubber and all the accessories needed for the process can either be purchased separately or in one easy-to-use Sylmasta Casting Kit complete with instructions.


Sylmasta Casting Kit – Everything you need for making silicone moulds and resin casts

Sylmasta Casting Kits are comprehensive kits which contain silicone moulding rubber, casting resin, mould release agent and all the accessories needed to start resin casting and mould making. Kits are available in two sizes and come with full instructions, making them ideal for both beginners and more experienced users.

The Sylmasta Casting Kit contains all the products and equipment needed to being resin casting and creating casts

Sylmasta Casting Kit

Contains 450g of 380 Moulding Rubber, 400g of G26 Casting Resin and 10ml of Release Agent for making reusable silicone moulds and casting multiple resin copies of original parts

The Sylmasta Casting Kit XL contains more of the products needed to start creating high-quality casts through the process of resin casting

Sylmasta Casting Kit XL

Contains 1kg of 380 Moulding Rubber, 2kg of G26 Casting Resin and 50ml of Release Agent for making reusable silicone moulds and casting multiple resin copies of original parts

Sylmasta Silicone Moulding Rubbers

Sylmasta Silicone Moulding Rubber is professional quality silicone rubber used for making high-quality, reusable moulds. Two hardnesses are available alongside mould release agent, which is used to prevent rubber sticking to itself during the making of split moulds.

370 Silicone Rubber is a soft moulding rubber from Sylmasta which has good flexibility and high tear strength for creating moulds with deep undercuts

370 Silicone Moulding Rubber

Softest grade of Sylmasta Moulding Rubber with high flexibility for creating moulds with deep undercuts. Has a pot life of 45 – 120 minutes and a de-mould time of 10 hours

380 Silicone Rubber is a medium, all-purpose moulding rubber which is stiff enough for dimensional stability and soft enough for deep undercuts

380 Silicone Moulding Rubber

Stiffer grade of Sylmasta Moulding Rubber, offering greater dimensional stability and tear strength. Has a pot life of 45 – 120 minutes and a de-mould time of 8 hours

Sylmasta Mould Release Agent is used to prevent silicone moulding rubber from sticking to itself during the making of split moulds

Mould Release Agent

Mould Release Agent is used when making a split mould to prevent the two parts from sticking to each other. Comes with a brush cap for easy application

Polycast Casting Resins

Polycast Casting Resins are non-shrink polyurethane resins for creating high-quality resin casts. A range of viscosities and cure speeds are available. Polycast Resins set to beige as standard. Should a specific coloured casting resin be required, then we have the capability to custom-make a resin to any RAL or PANTONE colour.

G27 White has been specifically designed for those seeking a white curing resin. Also available is Sylmasta CPU31 ClearCast, an optically clear, non-yellowing polyurethane resin resistant to UV for producing water-clear casts.

PolyCast G26 Polyurethane Casting Resin is a medium viscosity resin from Sylmasta

G26 Polyurethane Casting Resin

Medium viscosity polyurethane resin for casting larger parts of 0.5mm and upwards. Has a pot life of 3 – 4 minutes and a de-mould time of 30 minutes to 10mm thick

PolyCast G27 Polyurethane Casting Resin is a low viscosity, fast curing two-part resin

G27 Polyurethane Casting Resin

Low viscosity polyurethane resin for casting parts as small as 0.5mm thick. Has a pot life of 150 seconds and a de-mould time of 25 minutes to 10mm thick

PolyCast G27 White Polyurethane Casting Resin is a low viscosity, fast curing two-part resin which cures to a white colour

G27 White Polyurethane Casting Resin

Low viscosity polyurethane resin for casting parts as small as 0.5mm thick which sets white rather than the beige colour of standard G27

G27LV Polyurethane Casting Resin

Very low viscosity polyurethane resin which is extra searching for picking out the finest details. Has a pot life of 2 minutes and a de-mould time of 15 minutes to 10mm thick

Sylmasta CPU31 ClearCast Casting Resin is an optically clear, non-yellowing polyurethane casting resin which is resistant to UV

CPU31 ClearCast Casting Resin

Optically clear, non-yellowing polyurethane resin which is resistant to UV. It makes water clear casts and is used for embedding and encapsulating objects.

Casting & Mould Making Accessories

The monoject syringe is used for the controlled application of casting resins, expoxy adhesives and other liquids in the casting and mould making process

Monoject Syringe

One-piece syringe for precision dispensing of casting resins. Comes with a curved tapered tip which can be trimmed to the desired width

Pipettes are used to carefully and easily inject liquids during the casting and mould making process

Pipettes

Used to dispense resins and activators. Pipettes are available in 1ml and 3ml sizes and can be purchased in packs of 10 or boxes of 500.

The SuperCup Mixing Cup comes with marked mixing ratios to enable easy measuring of casting resins and epoxy adhesives

SuperCup Mixing Cup 400cc – Pack of 10

Reusable cups sold in packs of 10 with accurately marked mixing ratios for effortlessly measuring out and mixing resins and silicone rubber

Wooden stirrers are used in casting and mould making to stir both resins and silicone moulding rubbers in liquid form

Wooden Stirrers – Pack of 100

A useful accessory for mixing both resins and silicone rubbers in the casting and mould making process. Sold in boxes of 100 stirrers

Plasticine is used in the creation of two-part moulds during the casting and mould making process

Plasticine 150g

Plasticine is used in the creation of two-part moulds during the casting and mould making process. It is sold in 150g packages

More information about Casting & Mould Making

To see how easy it is to start casting and mould making using a Sylmasta Casting Kit, then please see our Showcase article on How to make and use a two-part silicone mould for resin casting, which includes an instructional video.

As well as model makers, kit builders and industrial users, the Casting Kit is also used by those in the resin jewellery industry for producing one-of-a-kind pieces. You can see examples of jewellery made using Sylmasta casting and mould making products on the website of a resident resin artist, The Pea Hive.