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Preparation: Select an appropriately sized container (or, if the kit is intended to be used in full, use the pail with Part A, it will fit resin, hardener and 22.7 kg of silica) to accommodate the resin, hardener, and sand. Weigh the required resin amount in this container and the required sand amount in a separate container.
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Measuring: Add the hardener directly from the kit jug to the resin using scales to reduce waste and improve accuracy.
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Mixing the Epoxy: Begin mixing the resin and hardener with a mechanical mixer for optimal consistency. Mix until homogeneous (approximately 2 minutes), then continue mixing for an additional minute. Limit resin and hardener mixing to a total of 3 minutes.
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Incorporating Sand: Gradually add the premeasured silica sand to the resin mixture within an additional 2 minutes. Mix thoroughly by hand and uniformly coat the sand using a robust stirring stick.
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Pouring: Pour the sand/resin mixture into the mold.
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Bubble Release: After approximately 5 minutes, air bubbles may surface. Quickly eliminate these bubbles using a brief propane torch blast held approximately 15 cm away from the resin surface.
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Induction & Heating (-10 to +5°C): At these temperatures, expect an induction period of approximately 35-40 minutes post-mixing where no noticeable reaction occurs, after which heat will gradually increase.
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Induction & Heating (+5 to +24°C): At these temperatures, expect a shorter induction period of approximately 15-20 minutes post-mixing, after which the heat will gradually increase.
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Heat Distribution: As heat begins to rise (around 30-40 minutes at 5°C, shorter at higher temps), gently swirl or briefly remix the epoxy/sand mixture within the mold. This brings warmer interior material to the surface and cooler outer layers inward, ensuring uniform heat distribution and improving final performance.