Spec:Grade   Bead size  Expandable rangeF-201   1.4-2.3      90-110  F-301   1.0-1.8      50-70   F-302   0.8-1.3      45-65 F-303   0.6-1.0      40-60 F-401   0.3-0.8      30-50 F-501   0.3-0.5      15-30

Characteristic:Good Flame-retardant, frothing, preserving, binding and low heat conductivity rate.

Application:      Oxygen index over 30(testing after7-14days lowing EPSbeing shaped) used as building-materials,materials for heat preservation,thermal insulation and for packing precision instruments

Expandable Polystyrene (EPS)-Flame retardant Grade