How to Work with Epoxy Resin in Summer in Israel: A Complete Guide for Hot Climate

Summer in Israel is a real challenge not only for people but also for the materials used by artists and makers. Temperatures often exceed 35–40°C, and in a workshop without air conditioning it can become even hotter. Under these conditions, epoxy resin behaves completely differently compared to the manufacturer’s recommended working temperature of 20–23°C.

Many beginners notice that during summer epoxy resin becomes thicker faster, heats up more quickly, the working time becomes shorter, and sometimes bubbles, waves, or even surface yellowing may appear.

The good news is that most of these problems can be easily prevented. You only need to understand how high temperatures affect the polymerization process and slightly adjust your usual working technique.

In this article, we will explain how to work with epoxy resin during summer, which materials are better suited for hot weather, and how to achieve perfect results even on the hottest days.

Why Does Heat Affect Epoxy Resin?

Epoxy resin cures as a result of a chemical reaction between resin and hardener.

The higher the surrounding temperature, the faster this reaction takes place.

Because of this, during summer you may experience several changes:

• working time becomes significantly shorter;
• resin heats up faster inside the mixing cup;
• the risk of overheating the mixture increases;
• bubbles begin to form faster;
• the possibility of surface defects such as micro waves increases.

This is why manufacturers recommend working at a temperature of 20–23°C and relative humidity of approximately 50–55%.

What Happens to Epoxy Resin in Extreme Heat?

At temperatures above 28–30°C, most epoxy resins become noticeably more active.

You may notice that:

• the mixture becomes more fluid;
• the working time is reduced almost by half;
• the mixing cup starts heating up quickly;
• the resin becomes thick much earlier than usual.

If the mixing volume is large, the temperature inside the resin can become significantly higher than the room temperature.

How to Prepare Your Workspace in Summer?

The main rule is not to fight the consequences of heat, but to create the most stable working conditions possible.

Whenever possible, we recommend:

• working in a room with air conditioning;
• maintaining a temperature around 20–24°C;
• avoiding direct sunlight on your workspace;
• not working near open windows during the hottest hours of the day.

If air conditioning is not available, it is better to move resin pouring to early morning or late evening when the air temperature is significantly lower.

Should You Cool Epoxy Resin Before Working?

No. It is not recommended to place resin components in the refrigerator directly before use.

Cold resin becomes more viscous, which can cause more bubbles during mixing.

In addition, sudden temperature changes may create condensation on the packaging and inside the material. Moisture is one of the main enemies of proper epoxy curing.

The best solution is to store resin in a room with a stable temperature.

Why Is It Especially Important to Mix Smaller Volumes in Summer?

A large amount of epoxy resin always generates more heat.

During summer, this effect becomes stronger.

If in winter you can comfortably prepare a larger batch, during hot weather it is better to divide the material into several smaller mixes.

This will help to:

• increase working time;
• reduce the risk of overheating;
• decrease the chance of rapid thickening;
• achieve a more stable result.

This approach is especially important when creating large projects and working with transparent pours.

Which Epoxy Resins Are Better for Hot Weather?

At M | Art Studio, we offer different types of ResinPro epoxy resins, each designed for specific creative projects.

For large pours during summer, it is better to choose formulas designed for bigger volumes and slower polymerization.

For jewelry, dried flowers, and transparent projects, ResinPro Trasparente is an excellent choice.

For trays, clocks, and interior decorative projects, many artists use ResinPro Art Pro.

For ocean paintings, geode techniques, and artistic effects, the thicker ResinPro Deluxe resin is commonly used.

For deep pours, it is recommended to use specialized resins designed for thicker layers.

You can view the full collection here:

Epoxy Resin Collection

How to Avoid Bubbles in Epoxy Resin During Summer?

High temperatures can help air escape from epoxy resin faster.

However, because the reaction happens faster, you have much less time to remove bubbles before the resin starts thickening.

We recommend:

• mixing components slowly;
• avoiding large batches;
• letting the resin rest for 2–3 minutes after mixing;
• using a gas torch to remove surface bubbles immediately after pouring.

Learn more about this topic in our article:

How to Remove Bubbles from Epoxy Resin

Can You Work on a Balcony or Outdoors?

It is better to avoid working outdoors.

Even if the temperature seems comfortable, outdoor work creates several risks:

• dust;
• insects;
• direct sunlight;
• sudden temperature changes;
• wind.

All of these factors can damage even a perfectly prepared resin pour.

It is always better to work indoors with good ventilation.

Should You Change the Pouring Thickness During Summer?

Yes, if the manufacturer allows different pouring options.

During high temperatures, it is better to avoid the maximum recommended layer thickness.

If your project allows it, a safer option is to pour in several stages.

This reduces heat generation and lowers the risk of resin overheating.

How to Store Epoxy Resin During Summer?

To keep the material in optimal condition, we recommend:

• storing resin at a temperature of 18–25°C;
• not leaving bottles inside a car;
• avoiding direct sunlight;
• closing bottles tightly after use;
• keeping resin in a dry room.

It is especially important not to store epoxy resin on balconies or inside metal garages, where summer temperatures can become much higher than recommended.

Frequently Asked Questions

Can I work with epoxy resin at 35°C?

Yes, but these conditions are far from optimal. Working time will become much shorter, and the risk of overheating the mixture will increase. Whenever possible, use air conditioning or move your work to a cooler time of day.

Why does epoxy resin cure faster in summer?

Because high temperatures accelerate the chemical reaction between resin and hardener. The warmer the environment, the faster polymerization occurs.

Can epoxy resin be stored in a refrigerator?

No. This may cause condensation and increase the viscosity of the material. Resin components should be stored at a stable room temperature.

Can epoxy resin be transported during summer?

Yes. However, do not leave packages inside a closed vehicle or under direct sunlight for a long time. After transportation, allow the material to adjust to room temperature for several hours before use.

Do I need to change my working technique during summer?

Yes. During hot weather, it is better to prepare smaller batches, work in a cooler room, avoid direct sunlight, and prepare all tools in advance to use the resin working time as efficiently as possible.

Working with epoxy resin during summer requires a little more attention than during cooler seasons, but it does not have to be more difficult.

Understanding how temperature affects the polymerization process helps prevent most common problems.

By preparing your workspace in advance, following manufacturer recommendations, choosing the right resin, and avoiding excessively large mixes, you can achieve the same transparent, strong, and beautiful results all year round.

For artists working in the hot climate of Israel, these simple recommendations will help maintain stable quality and create successful epoxy resin projects even during the hottest summer months.