Dow PAPI™ 20 Polymeric MDI

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Dow PAPI™ 20 Polymeric MDI
Categories:	Fluid; Polymer
Material Notes:	PAPI™ 20 polymeric MDI is a polymethylene polyphenylisocyanate that contains MDI. This product`s functionality value of 3.2 and high viscosity result in highly rigid foams. This product is designed for uses where high viscosity is required for processing polyisocyanurate foams. Information provided by Dow
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	1.234 g/cc	0.04458 lb/in³
Viscosity	1800 cP	1800 cP
Molecular Weight	400 g/mol	400 g/mol
Vapor Pressure	<= 1.33e-8 bar	<= 0.0000100 torr
Storage Temperature	24.0 - 41.0 °C	75.2 - 106 °F

Chemical Properties	Metric	English	Comments
Acid Value	0.040	0.040	% as HCl

Thermal Properties	Metric	English	Comments
CTE, linear	648 µm/m-°C @Temperature 20.0 °C	360 µin/in-°F @Temperature 68.0 °F	volumetric
Specific Heat Capacity	1.80 J/g-°C	0.430 BTU/lb-°F
Thermal Conductivity	0.126 W/m-K	0.870 BTU-in/hr-ft²-°F
Boiling Point	330 °C	626 °F
Decomposition Temperature	230 °C	446 °F
Flash Point	>= 204 °C	>= 399 °F	Closed Cup; ASTM D93

Descriptive Properties
Isocyanate Equivalent Weight	138
NCO Content wt%	30.4

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Dow PAPI™ 27 Polymeric MDI
Dow PAPI™ 94 Polymeric MDI
Dow BETAFOAM™ 87100 MDI & PMDI Isocyanate
Dow BETAMATE™ 7200 Polyurethane Prepolymer
Dow PAPI™ 580 N Polymeric MDI

PDOW1397 / 30615

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message