Molding flash
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Molding flash is excess material attached to a molded product, which must usually be removed. This is typically caused by leakage of the material between the two surfaces of a mold. (This leak begins along what is called a parting line in mold design[1]) Molding flash is seen when the optimized parameter on cull height is not calibrated.
Note: The excess material, commonly considered a quality defect in Semicon industries, is on occasion mistakenly described as 'flashing'.
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