Isoloyd Nilflame, like other urethane foam insulants, has low thermal conductivity. Unlike the others , though, it also has a high fire resistance rating .It achieves Class1 surface spread of flame rating-the best classification available-when tested to BS 476(Part 7, 1971).

 

EASE OF APPLICATION

Resistant to almost all solvents, Isoloyd Nilflame is compatible with cold applied adhesives, sealants and vapour-barrier mastics. Isoloyd Nilflame is available in boards, pipe sections, radiused bevelled lags, with or without factory-laminated facings.

CFC FREE
 
BETTER EXTREME-TEMPERATURE PERFORMANCE
Isoloyd Nilflame is the only 'CFC FREE' product, designed within the guidelines of the montreal protocol, 1987, for the protection of the ozone layer.
BETTER COST-EFFECTIVENESS
With Isoloyd Nilflame, insulation thickness can be reduced by 50% compared with cork, 44% compared with expanded polystyrene or fiberglass. It exposes lower surface area, reducing area or expensive vapour barrier and outer cladding per running meter of piping. So insulation parameters can be upgraded without increasing pipe rack spacing.
Unlike most thermoplastics, Isoloyd Nilflame has low smoke emission, And will not melt or drip in a fire. Being a rigid polyisocyanurate foam, it also has a higher hot surface performance of 150°C, compare with only 110°C of normal polyurethane foam. This makes it ideal for use directly over steam or electrical tracing. Its fire classification meets even the stringent requirements of the British Board of Trade for shipboard insulation as per BS 5608, the Indian navy; and those of the US Bureau of Mines.
TECHNICAL SPECIFICATIONS FOR ISOLOYD NILFLAME BOARDS & PIPE SECTIONS
Density32 ± 2 kg/m3
Compression Strength (in direction of rise) 172kN/m2 (1.75 kgf/cm2)
Thermal Conductivity'k' (initial) at 10°CMax. 0.017W/mk (0.12 BTU - in/hr .sft. °F)
Consult our technical assitance group for 'k' value thickness recommencations.
Temperature Unit150°C

Fire resistance properties

  1. Surface spread of flame (BS 476 Part7,1971)
  2. Ignitability (BS 476 Part 5, 1968)
  3. Mean Extent of burn (BS 4375, 1971)
  4. Penetration of 1200°C flame through 25mm board (U.S. Buearu of mine test)

 

  1. Class 1
  2. Class'P'(Not easily ignitable)
  3. Less than 25 mm (highest classification)
  4. 20 mintues (typical)
Water Vapour transmission (BS 4370 Part2, 1972)5.84X10-3µg-m/s N
Closed Cell Content90% (min)
Available SizesBoard 1m x .05m
Pipe Section to suit 50 to 250 mm NB x 1 m long.
Other sizes available on request
Thickness from 25 to 100 mm
 
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