Rigid Polyurethane Blend Polyols for PIR Panels

DBC-402C blend polyols reacts with isocyanate to produce PU foam which has good fire resistance temperature resistance good heat insulation low weight and compressive strength and other advantages.It is widely used for producing continuo

  •  Rigid Polyurethane Blend Polyols for PIR Panels
    DBC-402C
    Product Introduction
    DBC-402C blend polyols reacts with isocyanate to produce PU foam which has good fire resistance temperature resistance good heat insulation low weight and compressive strength and other advantages.It is widely used for producing continuous and discontinuous panels also suits for produce fire resistance slab stock suits for high and low pressure foam machine.

  • Physical Property

    Appearance Linght yellow to brown transparent liquid
    OH value mgKOH/g 200-280
    Dynamic viscosity (25℃)   mPa.S 150-250
    Density(20℃)g/ml 1.12-1.16
    Storage temperature ℃ 10-25
    Storage stability month 6

    Recommend Ratio

    Raw materials pbw
    DBC-402C Blend Polyols 100
    Isocyanate 150-160

    Technology and Reactivity(the exact value varies depending on processing conditions)

    Items Manual mixing High pressure machine
    Raw material temperature ℃ 25 25
    Moulding temperature   ℃ 50-60 50-60
    Cream times 15-30 15-25
    Gel times 50-120 50-110
    Free density  kg/m3 30-32 30-32

    Foam Performances

    Moulding density GB 6343 ≥45kg/m3
    Closed-cell rate GB 10799 ≥90%
    Thermal conductivity(15℃) GB 3399 ≤25mW/(m.K)
    Compression strength(perpendicular to the direction of rising) GB/T8813 ≥200kPa
    Dimensional stability -30℃ GB/T8811 ≤0.5%
    24h  100℃   ≤0.5%
    Flame retardant grade GB/T8624 Class B1
    Smoke Density SDR ≤75%
    Water absorption ratio GB 8810 ≤3%

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DBC-402C


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