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The paper edges can also gouge so try to hold the sanding paper such that the edges are curved up and only the middle really touches the mold.
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Results:
Material: 3mm
Melting Time: We gave it approximately a 5 minute warm up. After this five minute warm up, it took 4 minutes 20 seconds to be melted equal from all corners and 2-3 inches of a drop. I used the back tip of an eraser to confirm the corners. This was a very important step and it kind of ensured that less