Mixing Resins and Some PItfalls

Mixing Resin: A Guide to Help You Get It Right

Understanding Resin Basics

Before diving into the mixing process, it's essential to understand the fundamental components of resin. Most resins used for art projects are two-part systems, consisting of a resin and a hardener. When combined in the correct ratio, a chemical reaction occurs, transforming the liquid mixture into a solid, clear plastic-like material. 

There are many different types of resins are available on the market, each with its own unique characteristics and curing times. Some of the most common varieties include epoxy resin, polyurethane resin, and UV resin. Familiarising yourself with the specific properties of the resin you're using is crucial for achieving the desired results. Think about your particular piece of work, its dimensions both in physical measured dimensions but also in its approximate volume, this will help you to decide which resin to purchase, this is really important as you pour larger pieces as the wrong resin could overheat and flash cure, so take your time to look for the right resin to suit your project.

I have used many different resin makes but keep going back to these two :-





Measuring Precisely

One of the most critical aspects of mixing resin is achieving the correct ratio between the resin and hardener components. Even a slight deviation from the recommended ratio can lead to issues with the curing process, affecting the final appearance and durability of your artwork.

Always refer to the manufacturer's instructions and carefully measure out the required amounts using precise measuring tools. Many resin kits come with graduated cups or syringes to help you measure accurately. If you're working with larger quantities, consider investing in a digital scale for precise weight measurements.

Mixing Techniques

Once you've measured out the appropriate amounts of resin and hardener, it's time to start mixing. Begin by pouring both components into a clean, dry mixing container. Use a fresh stirring stick or a dedicated mixing tool to combine the two parts thoroughly. With most resins it is visibly possible to see when they are mixed correctly, the two parts give a slightly streaky appearance as they are mixed, this should completely disappear as they are mixed, if you are unsure then my advice would always be to mix some more to ensure a thorough and complete mix.

It's essential to mix slowly and methodically, scraping the sides and bottom of the container to ensure that no unmixed portions remain. Depending on the resin type, you may need to mix for several minutes to achieve a consistent, streak-free blend.

It is Ok to now leave the mixed resin to stand for a few minutes before pouring to allow some of the incorporated bubbles to disperse.

Incorporating Colors and Additives

One of the beauties of working with resin is the ability to incorporate a wide range of colours, pigments, and additives to create unique and eye-catching effects. However, it's crucial to introduce these elements at the right stage of the mixing process to avoid compromising the integrity of the resin.

If you're using liquid or powder pigments, add them to the resin mixture after the resin and hardener have been thoroughly combined. For larger additives, such as glitters, dried flowers, or other embellishments, it's best to wait until after you've poured the resin into your mould or surface before sprinkling or arranging them.

Always follow the manufacturer's recommendations regarding the maximum amount of additives that can be safely incorporated without affecting the curing process or the resin's properties.

Eliminating Bubbles

One of the most common challenges when working with resin is the formation of bubbles during the mixing and pouring process. These bubbles can become trapped within the cured resin, detracting from the smooth, glossy finish you're aiming for.

To minimize the occurrence of bubbles, there are a few techniques you can employ:


  1. Allow your mixed resin a few minutes to release bubbles before you pour it, depending on the type of resin you are using this resting period can be from a few minutes to an hour or more and will allow a lot of trapped bubbles to escape.

  2. Use a heat gun or lighter (I tend to use a chefs blow torch) to carefully pass over the surface of the poured resin, popping any bubbles that rise to the top, this can be several times as bubbles rise but be careful not to burn your resin, a very quick pass is all that is needed, you will get better at this with practice.

  3. Consider investing in a pressure pot or vacuum chamber, which can effectively remove bubbles from the resin before it cures

Proper Curing

Once you've mixed and poured your resin, it's essential to allow it to cure properly. The curing time can vary significantly depending on the type of resin you're using, as well as factors such as temperature and humidity.

Always follow the manufacturer's instructions regarding curing times and conditions. Some resins may require specific temperature ranges or humidity levels to cure correctly. Avoid disturbing or moving the piece during the curing process, as this can introduce new bubbles or imperfections.

If you're working on a project that requires multiple layers of resin, be sure to follow the recommended waiting times between pour coats to ensure proper adhesion and curing.

Embracing Experimentation

One of the most exciting aspects of working with resin is the opportunity for experimentation and creativity. Don't be afraid to try new techniques, experiment with different colours and additives, or explore unique pouring methods.

Keep a journal or notebook handy to document your process, noting any successes or challenges you encounter along the way. This will not only help you refine your skills but also serve as a valuable reference for future projects.


Mastering the art of mixing resin takes practice, patience, and a willingness to learn from your experiences. By following the best practices outlined in this guide, you'll be well on your way to creating stunning, flawless resin artwork that showcases your creativity and attention to detail.

Remember, the key to success lies in understanding the properties of your chosen resin, meticulously measuring and mixing the components, and embracing a spirit of experimentation. With time and dedication, you'll develop a keen eye for achieving the perfect blend, unlocking a world of endless artistic possibilities.


This blog was created from an original piece from this web site

The Art of Mixing Resin: A Guide to Mastering the Perfect Blend — Steve McDonald Crafts Limited

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