Raw Materials Specification

Cold Store

INSULATION MATERIALS

  • Polyurethane (PUR)
    Rigid polyurethane {PUR) materials are cellular thermosetting insulation materials providing very high degree of thermal insulation compared to other construction materials.
  • Polyisocyanurate (PIR)
    Rigid Polyisocyanurate {PIR) insulation materials are extensively modified polyurethane through the incorporation of the much great heat resistant isocyanurate, accordingly sandwich panel with PIR foam will give better reaction to fire

ADVANTAGES OF PIR

  • Polyisocyanurate foams, referred to as PIR, is essentially modified polyurethane (PU) foam.
  • Two advantages of PIR foam are improved fire-resistance and excellent insulation & machanical properties.
  • The proportion of MDI is higher than for PUR. As a result the MDI will also react with itself, producing strong chains of isocyanurate.
  • These chains are stronger than normal bonds in polyurethane and results in a chemically and thermally more stable foam
  • Superior R-Value and thermal performance.
  • Moisture resistance.
  • Dimensionally stable.
  • Excellent fire test performance.
  • Unaffected by commonly used construction adhesives and solvents.