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.
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.
In the video below, Arne shows how to use the 2-cup mixing method:
For the 2-cup mixing method, you will need the following products:
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).
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.
Pour the epoxy over into a new mixing cup. This way the bottom layer ends up at the top of the mixing bowl.
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!
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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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