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.

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!

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.

The curing time of a casting epoxy resin depends on several factors: the resin formulation, the pour thickness, and the ambient temperature.

In general, epoxy resin is dry to the touch after 24 to 48 hours, but full curing requires several days.

For our casting systems:

ARTPOXY 20 (thin pours up to 2 cm) allows demolding after approximately 24 hours at 20 °C.

ARTPOXY 60 (thick pours up to 6 cm) requires a demolding time of about 4 days at 20 °C, due to its formulation designed for large thicknesses.

To ensure optimal performance, it is essential to respect the recommended maximum thicknesses and the application conditions specified by the manufacturer.

Epoxy resin can withstand moderate heat, but it is not designed to resist high temperatures or prolonged direct contact with heat sources.

It is therefore strongly recommended to place an insulating support between the epoxy resin and any heat source. For example, with river tables, using a trivet is essential to avoid placing hot kitchen utensils such as pans or pots directly on the resin surface. This helps preserve the appearance and long-term durability of the resin.