Manufacturing Material Technical Specs

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Manufacturing Material Technical Specs 2018-01-06T15:19:54+00:00

Project Description

Insulation Materials

(1) Polyurethane (PUR)

Rigid polyurethane {PUR) materials are cellular thermosetting insulation materials providing very high degree of thermal insulation compared to other construction materials.

(2) 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.

  • 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.
Core PUR PIR
Density (kg/m3) 40 (±2) 40 (±2)
Reaction to Fire Class  : B3 + B2   Bs3d0 + Bs2d0 / Standards : Din 4102   EN 13501-1 Class  : B1   Bs3d0 / Standards : Din 4102   EN 13501-1
Percentage of Closed Cells 95% minimum 95% minimum
Thermal Conductivity () W/mk 0.0205 W/mk 0.0205 W/mk

Advantages of PIR

  • Superior R-Value and thermal performance.
  • Moisture resistance.
  • Dimensionally stable.
  • Excellent fire test performance.
  • Unaffected by commonly used construction adhesives and solvents.