GlassCast 10 Clear Epoxy Casting Resin (2024)

GlassCast® 10 is a water-clear, UV resistant epoxy clear casting resin suitable for castings and deep coatings up to 10mm in thickness. It is recommended for clear jewellery resin casting, 3D resin art, encapsulation and filling holes and gaps in wood (up to 10mm) and can be cast in multiple layers to an unlimited depth*. Open surface will require polishing.

Casting Vs Coating

GlassCast 10 is formulated as a casting resin, not a coating resin. This means that whilst it offers the advantage of incredible clarity - even in thick sections - it does not cure with a perfect surface on the open face in the way that our GlassCast 3 coating resin does. However, GlassCast 10 can easily be flatted and polished to acheive a perfectly flat, glossy finish if required.

If your project is more about creating a flat glossy coating - straight from the pour - then our GlassCast 3 coating resin is probably a better option.

Typical Uses

Glass Cast 10 is extremely easy-to-use. It is low odour, easy to mix and measure and does not require vacuum degassing; in fact this amazing resin will drive tiny air bubbles out of the resin during the cure resulting in a perfectly clear, glass-like casting.

All Glass Cast resins have been designed to have exceptional behaviour in contact with wood making them the perfect choice for combining with a wide range of woods including products such as half-wood jewellery (like wood resin rings), paperweights, walking stick handles and furniture pieces.

• Clear or tinted resin jewellery
• Resin & wood jewellery
• Pen blanks
• 3D resin art
• Thick counter-tops (with embedded objects)
• Water effects for models / scenarios

Further Information

Ambient Temperature, Pot-Life and Pour Depth

The GlassCast range of resins, in common with all epoxies, generate heat as part of the curing process. The amount of time the mixed resin can spend in the pot, as well as the maximum depth it can be poured at, will vary depending on the ambient temperature.

For best results, we recommend working in a consistent room temperature of 18-20°C. GlassCast can be used in temperatures from 15 to 25°C but higher temperatures will reduce the pot-life and the maximum pour-depth of the resin significantly, as shown in the table below.

Outdoor Use

Despite the very good advanced 'UV' resistant formulation of our Glass Cast resins, we don't suggest using the GlassCast range of resins for permanent, outdoor applications. This is down to epoxy chemistry meaning that eventually, over time, depending on UV exposure, environmental conditions etc, the resins will always eventually yellow in outdoor conditions. How visible this is depends on factors such as the underlying colour and conditions experienced.

We simply don’t have the longevity of testing to be able to guarantee how long it will be before the resin may start to deteriorate in direct sunlight, adverse weather conditions (freezing in winter, high temps in summer), water pooling or sitting on top, etc. We have got customers who have used it for such applications but the advice would be to either put the outdoor projects away between uses or to have a cover to protect it if no other product (yacht varnish, etc.) would suit your project.

Pigments and Tints

To create stunning translucent colours (like stained glass) just add a few drops of our resin tinting pigments. GlassCast can also be enhanced with metal powders, glitters and glow powders to achieve a huge range of decorative effects. It is the perfect clear resin for crafts of all kinds.

Our Glass Cast range of resins are compatible with many pigments and colouring powders on the market today. This includes epoxy compatible pigment pastes, various pigment powders and translucent tinting pigments. If the pigment manufacturer is not sure if the pigment is epoxy compatible then a small test should give you the answer you need. We stock a range of pigments that have all been tested and work great with all of our Glass Cast resins. You can find our range of pigments at the links below.

• Opaque Epoxy Compatible Pigment Pastes
• Pearl Ex Pigment Powders
• Translucent Tinting Pigments

How to Use

GlassCast 10 should always be mixed, poured and cured at a constant room temperature of around 20°C. Resin and hardener should be mixed 2 parts resin to 1 part hardener by volume (calibrated mixing pots available Here).

For castings, GlassCast 10 can be poured into common mould materials such as silicone**, polyethylene and polypropylene without the need for any release agent. For thick coatings GlassCast 10 can be poured directly onto dry surfaces such as metal, concrete and wood following a light ‘keying’ of the material. For thicker castings up to 50mm, we recommend GlassCast® 50.

*Additional layer should be poured when the previous layer reaches the B-stage of the cure. If the resin has fully cured the surface on the previous layer must be keyed to ensure a strong mechanical bond.

**Unlike most water clear resins, GlassCast can be cast into Condensation/tin cure RTV silicone rubber moulds without any problems.

Download the Technical Datasheet and Safety Datasheet from the 'Downloads' tab for full details on correct and safe measuring, mixing and use of the product.

Shelf Life

Shelf Life is 12 months from date manufacture. GlassCast should be stored in its original container and out of direct sunlight. It is recommended that the storage temperature should be between 15ºC and 25ºC. Ideally, containers should be opened only immediately prior to use. KEEP THE PACKING TIGHTLY SEALED WHEN NOT IN USE. When stored correctly, the resin and hardener will have a shelf-life of 12 months. Although it may be possible to use the resin and hardener after a longer period, a deterioration in the performance of the resin will occur.