Polynum Double
Thermal reflective insulation made of two external pure aluminum foil layers covering a double core layer of polyethylene bubble film.

Technical Specification

Property	Units	Dir	Value
Nominal Thickness	mm		8.0
Emmisivity (ASTM C 1371)			0.05
Reflectivity (ASTM C 1371)			0.95
Heat Resistance (R) - Under Roof	m2•°C / W	Down	3.06
Noise Reduction Coefficient (ASTM E  - 384)	%		55%
Sound Transmission  Class (ISO 171 - 1)	DB		- 6
Tensile Strength @ Peak (ASTM C - 1136)	g / cm - width	MD	2650
		TD	2750
Elongation @ Peak (ASTM C - 1136)	%	MD	18.7
		TD	18.0
Tear Strength (ASTM D  - 1938)	N	MD	12.5
		TD	13.5
Puncture Resistance (TAPPI T 803)	Joule		4.0
Surface Flame Spread **(BS 476 : Part7)			Class 1
Water Vapour Transmission (ASTM E  - 96)	g / ft2.hr		0.018(method A)
Fungal Resistance Test (ASTM C 1338)			No Fungal Growth
Corrosion Resistance (Internal Test)	Conc. HCI		High Resistance*
Yeild (Nominal)	g / m2		320
Standard Roll Size	m x m		1.20 x 40
Standard Roll Weight (Gross)	kg		±15.4

• All Products are supplied with high resistance (H.R) Treatment against corrosion as standard.
• Tested by Warrington fire Research Centre Ltd. U.K. (Test Report No. 121611)

Optional: Fire - Retardant Formulated

Polynum products are designed and manufactured under control of a Quality Management System, which meets the requirements of ISO 9001:2000 as certified by