Getting Started with Epoxy Resin: 5 Common Mistakes You Absolutely Must Avoid
Epoxy resin is a magical material for creating unique, glossy, and durable pieces. But when you’re just starting out, certain mistakes can easily ruin a project…
The good news? Once you know them, they’re easy to avoid! Here are the 5 most common mistakes you should watch out for.
1. Incorrectly Measuring the Resin and Hardener
Accurate dosing is crucial when working with epoxy resin. An incorrect ratio between resin and hardener can prevent proper curing or result in sticky surfaces.
➡️ Tip: Always follow the manufacturer’s recommended proportions exactly. For example, the ARTPOXY range requires precise ratios (often 2:1 or 100:45 depending on the product). Use a reliable digital scale and never estimate volumes “by eye”—precision is essential.
2. Working in Poor Temperature Conditions
Epoxy resin is sensitive to ambient temperature. A space that is too cold or too hot can slow down, accelerate, or even completely prevent proper curing.
➡️ Tip: Work in a room with a stable temperature, ideally between 20°C and 25°C (68–77°F). Avoid cold drafts, excessive humidity, and especially direct sunlight. Good ventilation without dust is also a big advantage.
3. Mixing Too Fast or Not Enough
Rushed or insufficient mixing can trap air bubbles and prevent the chemical reaction between the resin and hardener from activating properly.
➡️ Tip: Mix slowly and thoroughly for several minutes, scraping the sides and bottom of the container carefully. Use a flat spatula or wooden stick and take a methodical approach.
4. Failing to Protect Your Workspace
Once epoxy resin has cured, it bonds strongly to almost any surface and becomes nearly impossible to remove.
➡️ Tip: Protect your work surface with a plastic sheet or baking paper. Always work on a level table and wear nitrile gloves to avoid skin contact.
5. Pouring Too Quickly
It’s tempting to pour everything at once, but layers that are too thick can cause overheating or trap air bubbles inside the resin.
➡️ Tip: Pour in several stages, especially for thicker casts. Pour slowly in a steady stream, allowing bubbles to rise and the resin to level itself properly.
