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Mixing Epoxy Using the 2-Cup Method

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For a good casting quality, it is important that the epoxy is prepared correctly. In this article we explain which steps are necessary for preparing and mixing epoxy according to the 2-cup mixing method. By following these steps, your epoxy will always be prepared correctly and you will avoid problems during curing.

Why should you use the 2-cup mixing method?

Proper mixing is one of the most important steps while making epoxy. After all, to start the chemical reaction, it is necessary to mix the base and hardener properly. If you don't do this carefully, the epoxy may not cure sufficiently and will remain sticky.

With the 2-cup mixing method, you add an extra step to the mixing process by pouring the epoxy into a new mixing cup. This way, the bottom layer in the mixing cup will be on top and you can be assured that it will be mixed perfectly.

Mixing epoxy with the 2-cup mixing method

In the video below, Arne shows how to use the 2-cup mixing method:

  1. Weigh both components with a digital scale.
  2. Mix the epoxy thoroughly for about 3 minutes.
  3. Pour the epoxy into a new mixing cup.
  4. Mix both components well.

Supplies

For the 2-cup mixing method, you will need the following products:

Step 1. Weigh both components with a digital scale

Weigh both components in the correct mixing ratio. Use a (digital) scale for this, so that you can keep an accurate ratio. You can always find the mixing ratio on the packaging of hardener (B component). 

Tip: having trouble finding the right ratio? On the product page of our RESION epoxy resins, under 'documents', you will find a mixing chart with the correct quantities.

Step 2. Mix the epoxy well for about 3 minutes

Mix the epoxy well for about 3 minutes with a mixing spatula. Are the components still not well mixed after 3 minutes? Then continue mixing. While mixing, do not forget to include the bottom and sides of the mixing container. To avoid air bubbles in the resin, be careful not to mix too quickly.

Step 3. Pour the epoxy over into a new mixing cup

Pour the epoxy over into a new mixing cup. This way the bottom layer ends up at the top of the mixing bowl.

Did you know that you can reuse RESION mixing cups? Allow the resin to cure completely and then gently squeeze it out of the mixing cup.

Step 4. Mix both components again

Now mix both components well again for 3 minutes. Scrape along the bottom and side of the mixing container again. After this, the epoxy is ready to process.

Good luck!

More information on mixing epoxy?

Do you have questions about mixing epoxy? Please feel free to contact our customer service team. We will answer all your questions and be happy to give you advice!

Products used in this article

Choose the right product variant for your application.

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Frequently asked questions

The two-cup method is a technique where you pour the mixed epoxy into a clean second cup after the initial mixing. This ensures all components are thoroughly and evenly blended, reducing the risk of curing issues.

Improperly mixed epoxy may not cure correctly and can remain sticky. Thorough mixing activates the chemical reaction between resin and hardener, which is crucial for a strong final result.

If epoxy isn't mixed properly, it may cure unevenly or not at all. This can result in sticky surfaces and a failed project.

You should mix epoxy for at least 3 minutes in both the first and second cup. Be sure to scrape the sides and bottom of the container while mixing.

Yes, let the epoxy fully cure and then gently peel it out. The cup can then be reused.

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