Splay marks, silver streaks,
splash marks are the result of:
(a) moisture on the pellets which should be removed under
recommended drying times and temperatures
(b) products of degradation due to overheating
(c) residual non-aqueous volatiles in material
(a) and (c) will produce fine lines emanating from the gate all
over the part whereas (b) will show up as coarse lines,
lumps in sections of the moulded parts.
