Casting epoxy resin

This section brings together the most frequently asked questions about the use of casting epoxy resin. Here you will find clear and accessible answers to better understand its characteristics, applications, best practices, and common mistakes to avoid. Whether you are a beginner or an experienced user, this FAQ guides you step by step toward the success of your projects, whether they involve decorative castings, river tables, inclusions, or artistic creations made with epoxy resin.

add remove How do you add glitter to epoxy resin? insert_link

To add glitter and give your epoxy resin a specific pearlescent effect, add it once your mixture is ready. The amount depends on the effect you want to achieve, but always start with a small quantity, as it is easier to add glitter than to remove it.

Mix the glitter into the epoxy resin with a mixing stick until the color is uniform. If you want a darker shade, add more pigment in small amounts, mixing thoroughly each time.

Keep in mind that pearlescent effects can vary depending on the thickness of your pour, so it is important to run tests with small quantities before starting your final project.

add remove How to color epoxy resin? insert_link

You can bring your epoxy resin creations to life with vibrant and unique colors thanks to our SC Clear Color pigments.

To add color to your epoxy resin, do so once your mixture is ready. The amount depends on the shade you want to achieve, but always start with a small quantity, as it is easier to add pigment than to remove it.

Mix the pigments into the epoxy resin using a mixing stick until the color is uniform. If you want a darker shade, add more pigment in small amounts, mixing thoroughly each time.

Keep in mind that colors may appear lighter or darker depending on the thickness of your pour, and that the pearlescent effect of glitter can vary. It is therefore important to carry out tests with small quantities before starting your final project.

add remove What is the difference between the Classic range and the PLUS range for casting systems? insert_link

The application areas and properties of the systems are different. For example, the standard range systems contain few UV stabilizers and may yellow over time. They should mainly be used for colored castings.

On the other hand, the PLUS range systems are ideal for achieving a clearer and more transparent result in your castings.

add remove How do you know if your products are bio-based? insert_link

The bio-based carbon content of our raw materials is certified. In addition, our finished products are analyzed using carbon-14 dating to determine the proportion of bio-based carbon they contain. These measurements are carried out by an independent third-party laboratory.

add remove Can I also mix the standard hardener with the PLUS resin? insert_link

No, always use the resin and the hardener from the same system only. Our formulations are designed to be mixed together. If you do not use matching systems, you risk ruining both your mixture and your project.

add remove Beware of exothermic reaction during a pour. insert_link

The polymerization reaction of epoxy resin is exothermic, meaning it releases heat. This heat is significant, as the most reactive systems can reach temperatures above 200 °C. If the temperature rise is too high, deformation or yellowing of the part may occur. To ensure an optimal result, it is necessary to select the hardener reactivity according to the size of your project.

Exothermic behavior depends on several factors:

  • The poured mass

  • Ambient temperature

  • The geometry of the part

  • The insulating properties of the container

The most important factor is the mass of the pour. The larger the mixed quantity, the faster the polymerization reaction and the more intense the temperature increase. If a large amount of mixture remains, divide it into several containers to limit the rise in temperature.

add remove How can you eliminate air bubbles in epoxy resin? insert_link

Using epoxy resin offers a wide range of creative possibilities, from creating works of art to producing floor coatings and furniture. One of the most common challenges during application is avoiding the formation of unwanted air bubbles. These bubbles can compromise the appearance and quality of the final piece. Fortunately, there are several techniques and tips that help prevent these bubbles and achieve a smooth, flawless finish. In this article, we present some practical advice to avoid air bubbles in epoxy resin during pouring or lamination.

Whether you are a passionate artist or an experienced DIYer, these tips will help you achieve a professional-quality result. Follow our guide to eliminate air bubbles in your epoxy pour!

add remove What is a casting epoxy resin? insert_link

A casting epoxy resin is a resin formulated to be poured in thick layers, offering excellent transparency, low exothermic reaction, and uniform curing. It is ideal for river tables, decorative objects, inclusions, and mold casting.

add remove What is the difference between a casting resin and a laminating resin? insert_link

Casting resin is designed for thick pours and transparency, while laminating resin is intended for impregnating fabrics (glass, carbon, etc.) in thin layers. They are not interchangeable.

add remove What is the maximum thickness that can be poured with a casting epoxy resin? insert_link

It depends on the resin formulation. Some are designed for thin pours, while others allow thick pours reaching several centimeters per layer. It is essential to always follow the manufacturer’s recommendations.

At Sicomin, we offer two systems suited to all types of projects:

ARTPOXY 20 & ARTPOXY 20 PLUS: ideal for creating decorative objects and thin pours, up to 2 cm thick.

ARTPOXY 60 & ARTPOXY 60 PLUS: specially designed for river tables and thick pours, up to 6 cm thick.