Consistency at volume
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Fix the ratio basis and never mix the two
Weight or volume, whichever the product specifies, applied the same way every time by everybody. Half the inconsistency in this craft is somebody measuring a volume-ratio product on a scale because the scale was closer.
Log the room temperature
It changes pot life, peak exotherm and whether a cure completes, and it is the variable people do not record. One column turns a batch that behaved oddly in January into an explained event rather than a mystery.
Standardize the mass per pour
The same total volume split differently behaves differently, because mass drives the exotherm. Picking a standard batch size and sticking to it removes a whole class of variation and makes pot life predictable.
Track mold age in pulls
Surface quality degrades gradually, so pieces get slowly worse without any single batch being wrong. A pull count per mold tells you when to replace it before a customer does.
Keep a reference piece
One good casting kept aside, compared against new work. Color and clarity drift is invisible piece to piece and obvious against something from three months ago, which is the same discipline every other property here arrives at.
Write down what good looks like
A short description agreed while a piece is right is what lets somebody other than you judge the next one. Without it, quality control is one person’s eye and it leaves when they do.
Buy pigment in a quantity that covers the run
Color shifts between lots, and a product line that has to match across months is safer bought once than reordered mid-run. That is working capital spent to remove a variable, and for a matched set it is worth it.