PROMATECT®-L500

PROMATECT®-L500 is a non combustible low density calcium silicate board, used for the construction of fire resistant ducts, cladding of sheet metal ducts and to provide fire rated cable and service enclosures.

PROMATECT®-L500 is off white in colour and has a smooth sanded surface on one face with a lightly honeycombed texture on the reverse face.

PROMATECT®-L500 is resistant to the effects of moisture and will not physically deteriorate when used in damp or humid conditions. Performance characteristics are not degraded by age or moisture. Untreated surfaces will absorb water which can cause some loss of strength but full strength is regained after drying. It will not encourage mould growth and is resistant to attack by insect or vermin.

PROMATECT®-L500 is chemically inert and is resistant to dilute acids and alkalis.

Further Information

Application:

Ductwork. Cable protection. Service enclosures.

Benefits:

  • 30-240 minutes fire resistance
  • Large spans tested for self supporting ducts
  • Used in damp or humid conditions
  • Excellent fire insulation properties
Alkalinity: 9pH
Water vapour diffusion resistance factor (μ): 3.2
Thermal Conductivity at 20°C: 0.09W/m K
Flexural Strength Longitudinal: 3N/mm²
Tensile Strength Longitudinal: 1.2N/mm²
Compressive strength: 5.5N/mm²

Please note
All physical and mechanical values are averages based on standard production and tested according to internal procedures. The typical values are given for guidance. The figures can change dependent on the test methods used. If a particular value is of prime importance for a specification, please consult Promat Technical Department.

 

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