It is recommended to use a double-pot mixing method with epoxy. A complete thorough mixing of epoxy is difficult to achieve when resin and hardener are pumped and mixed in one container. A film of resin or hardener will cling to the bottom or side of the container leaving areas of unmixed or undermixed components. This can be readily seen when tinted epoxy is mixed together. To ensure thorough mixing, first dispense and mix resin and hardener in one container, carefully scraping the sides and bottom. Scraping is the key because it incorporates the majority of the single components into the mixture. Second, transfer this mixed epoxy into another clean mixing container. Use a new stir stick to mix a second time. This transfer will eliminate any clinging unmixed material and additional mixing will assure thorough crosslinking of both components.