5. Curing, Demolding, and Sanding
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Patience is paramount after the pour. Rushing the cure or sanding process can ruin the piece.
1. The Curing Process
Cover the piece with a box or plastic sheeting to protect it from dust while it cures. Deep-pour epoxy may remain tacky for 24-48 hours but requires a full 72 hours to a week to harden completely, depending on the brand and ambient temperature. Do not attempt to demold or move it until it is fully hardened.
2. Careful Demolding
Once fully cured, carefully dismantle the mold. The epoxy should release easily if the mold was properly prepared. You will now have a rough "blank" of your table with the wood encapsulated in a thick, clear epoxy block with sharp edges.
3. Sanding for a Flat, Clear Surface
Begin sanding the top surface with a coarse grit (80-120) on an orbital sander to flatten any unevenness and remove mold seams. Progress methodically through the grits (220, 400, 800, 1500, 2000), wet-sanding with higher grits for a finer finish. The goal is to erase all scratches from the previous grit until the surface is uniformly smooth and begins to look hazy.
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