Rigid Polyurethane Blend Polyols for Spray Insulation DQT-50

Rigid Polyurethane Blend Polyols for Spray Insulation (DQT-501A )

  • Rigid Polyurethane Blend Polyols for Spray Insulation  (DQT-501A )
    Product Introduction
    DQT-501A is spray blend polyols it reacts with isocyanate to produce foam which has excellent performances which are as follows
    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 projects which use the spray such as cold roomslarge pots large-scale pipelines and construction out-wall or inner-wall etc.

  • Physical Properties

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

    Recommended Ratio

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

    Reactivity Characteristics

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

    Cream Times 3-5
    Gel Times 6-10

    Foam Performances

    items Test Method Index
    Spray Density GB 6343 ≥35kg/m3
    Closed-cell Rate GB 10799 ≥90%
    Initial Thermal Conductivity(15℃) GB 3399 ≤24mW/(m.K)
    Compressive Strength GB/T8813 ≥150kPa
    Adhesive Strength GB/T16777 ≥120kPa
    Elongation at break GB/T9641 ≥10%
    Dimentional Stability  24h  -20℃ GB/T8811 ≤1%
    24h   70℃   ≤1.5%
    Water Absorption GB 8810 ≤3%
    Oxygen Index GB 8624 ≥26

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