_{Phenolic foam board is used to make air duct.It's widely used in industry construction,residential construction,hospital,hotel,office building and other special needs' place.}

_{(1)Product composition: Phenolic foam in the middle;and in the inner and outer space is composite with embossing aluminum foil;}

_{(2)The batten board of phenolic composite duct is the new style ecological heat insulation material;}

_{(3)Technical Data Sheet of Phenolic foam board}

ITEM	UNIT	DATA
Flame Retarding Grade	/	Level-B1 flame retardancy
Aluminum Thickness	mm	0.07
Total Thickness	mm	20
Heat-resistance Performance	°c	-50～150
Dimension	mm	20*1200*3000/4000
Thermal Conductivity	w/m.k	0.022
Compression Intensity	Kpa	150
Density	kg/m3	55-80

_{Note:The special specification can be customized as your requirement}