TECHNICAL SPECIFICTIONS OF PUF

Standard Density	40 ± 2 Kg./m3
Thermal conductivity ( K Value )	0.016 – 0.017 Kcal / Mhr 1˚C
Compressive Strength	1.5 – 2 Kg. cm2
TemperatureRange	180˚ C to + 110˚ C
Closed cell contents	1.6 – 2.0 per ms / inch
Dimensional Stability ( Linear Change )	< 2%
Fire Resistance	Ignitability – Class ‘P’ ( not easily ignitable) ( As per BA 476 Part – 5, 1988.) Mean extend of burn-less than 125 mm.

Thermal Conductivity or 'k' values of typical building materials. The lower the k vlaue the better the material is at resisting heat energy transfer.

Material	k value W/m/K	Relative to foam insulation performance assuming still air and dry conditions
Polyurethane Foam	0.020	100%
Mineral Wool	0.045	44%
Timber	0.15	13%
Plasterboard	0.25	0.08%
Block	0.60	0.03%
Brick	0.80	0.025%
Mortar	0.90	0.022%
Glass	0.90	0.022%
Concrete	1.0	0.020%
Steel	36	0.0006%

TECHNICAL SPECIFICTIONS OF PIR

PROPERTIES OF PIR (Polyisocyanurate ) RIGID FOAM
No	Property Description	Standard	Result	Test method
1	Density	>50 Kg/cu m	52 Kg/cu m	ASTM D 1622-63
2	Closed cell content	>95%	96%	ASTM D 2856-70
3	Thermal Conductivity	< 0.02 Kcal/m.h.degC at 23deg C	0.022 Kcal/m.h.deg C
4	Compressive strength at 10% deflection @ 20deg C	>2.5 kg/sq cm in any direction	2.7 Kg/ sq cm	ASTM D 1621-73
5	Surface spread of flame	class 1	Compliant	BS 476 part 7
6	Product ignitability	class P	Compliant	BS 476 part 5
7	Residual weight of sample	>90% isocyanate	92.2% isocyanante	ASTM D 3014-76