Heat preservation cotton

Specifications Heat preservation cotton

1.Material:rubber

2.Certificates: ISO9001

3.payment: T/T

4.OEM: Welcome

Heat preservation cotton Products Description   1.sound proofing            C8 is made of strong spongy material EPDM. In combination with double-side obturator foaming technology , it can make the sound-proof effect more perfect and more healthy. This product has strong environmental protection tasteless adhesive, and it is not glue to the hands, making the construction sequenceboth simple and strong.   2. Good fire –blocking         This product has fire-blocking and smoke-reducing property , when burned , its density is very low and doesn’t melt, without any small fire ball left and with the merit of self-extinguishing.          According to the standard of GBB8624-1997 Method for grading flammability of construction material, this is the flame resistant product of grade B1 enabling to secure the satiety   3.Low conductivity factor       Conductivity of this material is 0.034w/mk at an average°C.As this product has high heat-releasing ratio, it can get the same heat-preservation effect at less half thickness of other insulating product under the same condition, saving not only space but also cost.     Products Showing      Rubber Specification  

Item		Unit	Specification	Standard
Density		Kg/m3	40-110	GB/T6343
Flammability			B1	GB/T8624-1997
Oxygen index		%	≥32	GB/T2406
Conductivity factor Average temperature -20°C 0°C 40°C		W/(M.K)	≤0.031 ≤0.034 ≤0.036	GB/T10294
Water vapor permeability	Coefficient	g/(m.s.Pa)	≤4.4*10-10	GB/T17146
	Factor	-	≥4.5*103	GB/T17794
Water absorption ratio in vacuum		%	≤10	GB/T17794
Dimension stability 105±°C7d		%	≤10	GB/8811
Crack resilience ratio		N/an	≥2.5	GB/T10808
Compression resilience ratio Compression resilience ratio)50% Compression time)72h		%	≥70	GB/T7762
Anti-ozone Ozone pressure)202mPa 200h		-	Not cracking	GB/T7762
Aging resistance 150h		-	Slightly crupling no cracks no pin holes, not deforming	GB/T16259
		°C