https://www.avient.com/knowledge-base/article/injection-molding-mold-processing
Up to 20% regrind may be used for SEBS TPEs.
Harder grades (> 50 Shore A) will set up faster in the mold compared to very soft grades (< 20 Shore A).
For an average part and medium hardness SEBS formulation, the cooling time will be approximately 15 to 20 seconds for every 0.100" of wall thickness, provided there is cooling available from both sides.