Inov Chem Donfoam 812 HCFC-141B Base blend polyols

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Inov Chem Donfoam 812 HCFC-141B Base blend polyols
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Donfoam 812 blend polyether polyols used for produce PUR block foam. The foam has uniform cell, low thermal conductivity, thermal insulation performance is good, flame retardant performance is good, low temperature no shrinking crack etc. Widely used in the process of all kinds of insulation work such as: building external wall, cold storage, tanks, large pipes etc. Information provided by Shandong INOV Polyurethane Co., Ltd.
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Physical Properties	Original Value	Comments

Specific Gravity	1.16 - 1.18 g/cc
Density	0.0260 - 0.0280 g/cc	Free Density, Manual Mixing
	0.0380 - 0.0420 g/cc	Molding Core Density; GB 6343
	0.0400 - 0.0420 g/cc	Overall Molding Density; GB 6343
Water Absorption	<= 3.0 %	GB 8810
Viscosity	200 - 300 cP	Dynamic
Storage Temperature	10.0 - 25.0 °C

Mechanical Properties	Original Value	Comments
Compressive Strength	>= 0.150 MPa	GB/T8813

Thermal Properties	Original Value	Comments
Thermal Conductivity	<= 0.0240 W/m-K @Temperature 15.0 °C	GB 3399

Processing Properties	Original Value	Comments
Processing Temperature	20.0 - 25.0 °C	Raw material temperature, Manual mix
Mold Temperature	15.0 - 45.0 °C	Ambient Temperature, Manual mix
Cure Time	240 - 260 sec	Tack free time, Manual mixing
Gel Time	2.30 - 3.00 min	Manual Mixing
Shelf Life	6.00 Month

Descriptive Properties
Appearance	Light yellow to brown transparent liquid
Closed-cell rate	=90%	GB 10799
Cream time	35-60 sec
Dimensional stability	=1.0%	24h, -20?; GB/T8811
	=1.0%	24h, 70?; GB/T8811
Flammability	Class A	ASTM E84
Recommended Ratio	100	Blend Polyether Polyol
	130	Isocyanate

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PINOVCHM028 / 312557

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