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H658 Blended polyol (short demould time)

  Refrigerators and freezers
  H658 is designed for cyclo/iso-pentane blowing system. H658 can be used on both high and low pressure foaming machine.
  Short demould time
  High compressive strength
  Good dimensional stability
  Appearance                                                       Yellow viscous liquid
  Viscosity                        cp, 25 Centigrade        2200-4000
  Water content                 %                                1.6-2.2
  OH number                    mgKOH/g                    380-440
Recommended formulation:
  H658                             pbw                             100
  Cyclo/iso-pentane         (70/30) pbw                13
  MDI                              pbw                             145-150
Reaction characteristics (hand mixing, 25 Centigrade):
  Cream time                    s                                  8-14
  Gel time                         s                                  60-90
  FRD                              Kg/m3                         24.0-27.0
Foam performances:
  Mould density                Kg/m3                         33.0MIN
  Initial K factor                W/m.K                        0.022MAX
  Compressive strength     MPa                            0.15MIN
  Dimensional stability      
    -30 Centigrade, 72hrs    %                                1.0MAX
  Demould time                 min                              4.5
  220Kg/drum, 1000Kg/IBC or 22MT/isotank
Storage and shelf life:
  Environment temperature is 10-25 Centigrade. Avoid insolating and raining. Shelf life is 6 months.
Safety data:
  Please feel free to contact us for MSDS.

Blended Polyols
Polyether Polyols
H.B.C. Films
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