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H472 Blended polyol (low density)

  Refrigerators and freezers.
  H476 is designed for HCFC-141b blowing system. H476 can be used in both high and low pressure foaming machine.
  Low mould density and good dimensional stability
  Appearance                                         Yellow viscous liquid
  Viscosity                        cp, 25 Centigrade      2500-4000
  OH number                    mgKOH/g                 340-420
  Special gravity                g/ml, 20 Centigrade    1.11
Recommended formulation:
  H472                             pbw                           100
  HCFC-141b                   pbw                           22-26
  MDI                               pbw                           145-150
Reaction characteristics (hand mixing, 23-24 Centigrade):
  Cream time                    s                                8-12
  Gel time                         s                                60-80
  Tack free time                s                                90-120
  FRD                              Kg/m3                       23.0-26.0
Foam performances:
  Mould density                Kg/m3                         32.0
  Initial K factor                W/m.K                       0.0190
  Closed cell content         %                              95MIN
  Compressive strength     KPa                          150MIN
  Dimensional stability      
    -30 Centigrade, 72hrs    %                              1.0MAX
  215Kg/drum, 1000Kg/drum or about 22MT/isotank
Storage and shelf life:
  Environment temperature is 10-25 Centigrade. Shelf life is 6 month.
Safety data:
  Please feel free to contact us for MSDS.

Blended Polyols
Polyether Polyols
H.B.C. Films
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