Blended Polyols for PUR Continuous Panels

DBC-402A uses special polyether polyols as the main raw materials with special additives to constitute blend polyols the characteristics are as follows

  • Blended Polyols for PUR Continuous Panels
    DBC-402A
    Product Introduction
    DBC-402A uses special polyether polyols as the main raw materials with special additives to constitute blend polyols the characteristics are as follows
    1、good flowability in the reactivity process the foam density distributes uniformity with excellent dimensional stability and cohesiveness.
    2、it can meet different requirements of continuous sandwich board product lines

  • Physical Property

    Appearance Light yellow transparent viscous liquid
    Hydroxyl value mgKOH/g 300-400
    Dynamic viscosity(25℃) mPa.S 150-300
    Density(20℃) g/ml 1.10-1.16
    Storage temperature ℃ 10-25
    Storage stability Month 6

    Recommended Ratio

    Raw Material Pbw
    DBC-402Ablend polyols 100
    Isocyanate 100-110

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

    Items Manual mixing High temperature machine
    Material temperature ℃ 25 25
    Moulding temperature ℃ 40-45 40-45
    Rise times 10-20 6-15
    Gel times 35-65 20-40
    Free Density kg/m3 30-35 30-35

    Foam Performances

    Foam density by moulding GB 6343 ≥40kg/m3
    Foam density by moulding GB 10799 ≥90%
    Closed cell rate GB 3399 ≤22mW/(m.K)
    Thermal conductivity(15℃) GB/T 8813 ≥150kPa
    Compressive Strength    
    (perpendicular to the direction of rising) GB/T 8811  
    Dimensional Stability    
    (24h-20℃)   ≤1.0%
    (24h100℃)   ≤1.5%
    Flame retardant grade GB/T8624 Level B3 or B2

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DBC-402A


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