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Retsol Hard — Black (11)

SKU: RET-HARD-11 · Retsol / Hard · active

1. Ingredients (builds the batch)

IngredientQuantityUnitLine cost
Paraffin Wax 58 c/135f23.3kg$107.18
Zinc Stearate1.1kg$10.14
Stearic Acid2kg$21.86
Talcum Powder7kg$13.93
Black Oxide1.8kg$12.29
Batch weight35.200 kg

2. Batch yield

Crayon unit weight determines how many crayons one batch actually produces.

Batch material cost$165.41
Theoretical crayons/batch2206
Material cost/crayon$0.0750

3. Time, labour & reject rate

Crayon unit weight (g)
Setup (min)
Manufacture (min)
Setdown/clean (min)
Mfg/setup/setdown labour rate
QC (min)
QC labour rate
Reject rate (0–1, e.g. 0.05 = 5%)

4. Total cost per crayon

Total time/batch150 min
Labour cost/batch$110.00
Good crayons/batch (after reject rate)2206
Total cost per crayon$0.1249