How to Mix Correctly?

When working with Epoxy Resins or Polyurethane Elastomers, mixing is one of the most important parts of the procedure to ensure a high quality finish.

Once you have your Part A and Part B measured together, begin by mixing your container. We recommend using a container that is at least 20% larger than the volume you are mixing, to ensure you have ample mixing room and avoid any possible spillages.

Using containers made from Polyethylene Plastic is a good option as the container can generally be re-used ensuring you have mixed correctly.

A good mixing method is a 2 minute mix, mixing the contents, scraping the sides and bottom of the container. Then after the 2 minutes, transfer the entire volume of liquid into a clean new mixing vessel, scraping as much as possible out, and continue to mix for an additional 1 minute. This will avoid any unmixed material contaminating your project from the initial mixing vessel. This is a common mixing procedure used throughout a number of industries.

A mixing technique we frequently use with our own projects is to spend 1 minute mixing the contents of the container in a clockwise, anti-clockwise or figure-eight motion. Then 1 minute scraping the sides and edges of the mixing vessel, and the final 1 minute scraping along the bottom of the mixing vessel. This will ensure you have a 3-minute, well-combined mix.

The best way to tell if you have mixed well is the next day, once the resin or elastomer has hardened. If you can easily peel the remaining contents out of the mixing vessel, with no sticky or wet spots, then you have successfully mixed. This also means your mixing vessel can then be reused for additional pours. If you find the resin or elastomer is not easily coming out or that there are large sticky spots throughout the container, it means you have not mixed well enough. If this is a common occurrence, we recommend using the first mixing procedure.

For a full step-by-step on how we recommend mixing Epoxy Resin, see our YouTube Channel here: https://youtu.be/bVJwTpTXyCg