Rigid Polyurethane Blend Polyols for Spray Insulation

DQT-501B is high density spray blend polyols it reacts with isocyanate to produce foam which has excellent performances as below

  • Product Introduction

    DQT-501B is high density spray blend polyols it reacts with isocyanate to produce foam which has excellent performances as below
    1) fine and uniformity cells
    2) low thermal conductivity
    3) perfect fire resistance
    4)excellent low temperature dimentional stability .
    It applies to all kinds of thermal insulation engineering which use the spray such as cold warehouses pots large-scale pipelines construction roofs and all types of abnormal thermal insulation projects.

  • Physical Properties

    Appearance Light yellow to brown viscous liquid
    Hydroxyl Value mgKOH/g 200-300
    Dynamic Viscosity (25℃) mpa.s 100-200
    Gravity (20℃) g/ml 1.12-1.20
    Storage Temperature℃ 10-25
    Storage Stability month 6

    Recommended Ratio

      pbw
    DQT-501B blend polyols 100
    Isocyanate 100-105

    Reactivity Characteristics

    Component temperature is 20℃ the actual value is varied according to pipe diameter and processing condition.

    RTs 3-5
    GTs 6-12

    Foam Performances

    Items Test Method Index
    Spray Density GB 6343 ≥50kg/m3
    Closed-cell Rate GB 10799 ≥90%
    Initial Thermal Conductivity(15℃) GB 3399 ≤24mW/(m.K)
    Compressive Strength GB/T8813 ≥300kPa
    Adhesive Strength GB/T16777 ≥120kPa
    Elongation at break GB/T9641 ≥10%
    Dimensional Stability  24h  -20℃ GB/T8811 ≤1%
    24h   70℃   ≤1.5%
    Water Absorption GB 8810 ≤3%
    Oxygen Index GB 8624 ≥26

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DQT-501B


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