*Trademark of The Dow Chemical Company

Dow Automotive and Dow Systems House are a business groups of The Dow Chemical Company and its subsidiaries.

Page 1 of 3

Technical Data Sheet

SPECFLEX* NM 815 Polyol

PAPI* 95 Isocyanate

Formulated Polyurethane Foam System

Description SPECFLEX NM 815 is a fully formulated polyol used primarily for closed pour instrument panel

applications. NM 815 is designed to be used in combination with PAPI 95 isocyanate to allow for the

production of instrument panels and interior trim parts having an applied foam density range of 140 -

160 kg/m3.

This semi-rigid foam system is excellent for automotive applications that require good adhesion, fast

cure, very low vinyl staining, very low fogging, and good flowability in intricate molds.

Typical demold times range from 60 to 90 seconds.

Typical

Component

Properties

Unit SPECFLEX * NM 815

Polyol

PAPI* 95

Isocyanate

Method

OH number MgKOH/g 44 - 49 ASTMD 4274

Water Content % 2.6 – 2.8 ASTM E 203-92a

Color Dark Grey Brown

Viscosity @ 25°C cPs 1300 - 1700 65 - 82 ASTM D 4878/ *D 4889

NCO Content % 31.4 – 32.7 ASTM D 5155

Specific Gravity 1.03 1.23 ASTM D 891

1Recommended

Process

Conditions

Please consult the Material Safety Data Sheets for detailed information on product safety handling

and emergency procedures

Units Values

Poly : Iso Ratio (103-107 Index) 1.85 – 1.93

Machine Throughput g/s Depends on equipment & customer needs; commercially utilized at 200 – 500 g/s

Components Temperature at Head °C 29 – 35 for NM 815 poly; 27 – 32 for PAPI 95 iso

Mold Temperature °C 38 - 49

Demolding Time s 60 - 90

De-Gas Time s 5 – 20 s after end of Rise Time

1Values are only recommendations. Customers have utilized this foam outside of these conditions without negative effect.

Process setups are dependant on customer requirements, part design, mold seal-off condition, carrier functionality, equipment

limitations, etc.

Typical Reaction

Characteristics

Hand mix data referred to laboratory tests made with components temperature at 25 °C, hand-mixed

with mechanical stirrer at 2500 rpm. High pressure values will vary depending on processing

conditions.

Unit Hand mix High presure machine Method

Cream Time s 10 5 Dow internal method

Gel Time s 39 28 Dow internal method

Rise Time s 58 42 Dow internal method

Free Rise Density Kg/m3 53 44 Dow internal method
*Trademark of The Dow Chemical Company

Dow Automotive and Dow Systems House are a business groups of The Dow Chemical Company and its subsidiaries.

Page 2 of 3

Viscosity Profiles

Viscosity profile: Viscosity profile:

SPECFLEX* NM 815 blend PAPI* 95 Isocyanate

T (F) T (C) Viscosity (cP) T (F) T (C) Viscosity (cP)

72 22.2 1846 75 23.9 73

80 26.7 1371 80 26.7 64

85 29.4 1200 85 29.4 56

90 32.2 994 90 32.2 49

95 35.0 875 95 35.0 43

100 37.8 739 100 37.8 37

2Polymer

Properties

Physical property values vary with the core density of the test pad. The values reported below are

the average properties of the foam at the core density also reported below. The properties will be

different at the applied density but can be correlated to these results based on the density difference.

2Results are from study # 34643 at Dow Chemical Midland, MI USA Automotive Flexible Foams Lab

in February 2007. Data provided as general information only.

Units Value Standard

Deviation

Method

Core Density (for property tests) Kg/m3 94 7 ASTM D3574 A

Tensile Strength kPa 371 48 ASTM D3574 E

Tensile Strength (heat aged) kPa 253 5 ASTM D3574 K

Elongation at break % 67 3 ASTM D3574 E

Tear Strength N/m 453 4 ASTM D3574 F

CD Compression Set 50% % 29 5 ASTM D3574 D

CD Compression Set 50%

(humid aged)

% 22 2 ASTM D3574 D, J2

Compression Force Deflection

50% (humid aged)

%change 38 1 ASTM D3574 C, J2

Flammability Numerical flame spread or fire classification are not intended to reflect hazards presented by this or

any other material under actual fire conditions

Standard Typical Values (3)

FMVSS - 302 Pass (45 mm/min)

3Numerical flame spread or fire classification are only indicative, they are not sales specifications

Handling and

Storage

Drums of PAPI 95 MDI must be protected from moisture contamination. Exothermic generation of

CO2 may cause dangerous pressure build-up if contamination occurs. Opened containers should be

filled with -40 C dew point inert gas before closing (nitrogen or air may be used). During drum

unloading, the 3/4" vent may be equipped with a dry inert gas breather (maximum of 1 psig pressure)

or a moisture free, calcium chloride-filled dryer tube placed in the air bleed opening. Shipping and

storage temperatures for this product are 75° to 105°F (24° to 41°C). If shipping or storage

temperature should fall below 65°F (18°C), some crystallization could result. Unless proper action is

taken to re-form the original solution, subsequent dimerization will proceed quickly and will

deteriorate the assay of the product.

Unit SPECFLEX* NM 815 Polyol PAPI* 95 Isocyanate

Storage temperature °C 15 - 40 24 - 41

4Shelf life / Storage stability Months 6 6

4Stored in the original sealed drums in a dry place at the recommended temperature
*Trademark of The Dow Chemical Company

Dow Automotive and Dow Systems House are a business groups of The Dow Chemical Company and its subsidiaries.

Page 3 of 3

Safety

Considerations

Material Safety Data Sheets (MSDS) are available from the Dow Chemical Company. MSDS is

provided to help customers satisfy their own handling, safety and disposal needs, and those that may

be required by locally applicable health and safety regulations. SDS sheets are updated regularly.

Therefore, please request and review the most current SDS before handling or using any product.

Copies of the SDS are available on request through your nearest Dow Sales office.

NM 815 Polyol - Formulated polyols generally present no significant hazard in use when simple

precautions are followed. However, before working with these systems, it is necessary to understand

the hazards involved in handling all of the components and to establish and follow safe work

procedures.

PAPI 95 Isocyanate - PAPI polymeric MDI products are potentially hazardous materials and require

care in handling. All persons who work with these materials must know and follow proper safe handling

procedures.

Customer Notice Dow encourages its customers to review their applications of Dow products from the standpoint of

human health and environmental quality. To help ensure that Dow products are not used in ways for

which they were not intended or tested, Dow personnel are willing to assist in dealing with ecological

and products safety consideration. Your Dow representative can arrange the proper contacts.

Contact information :

For more information about PU Systems

products, call The Dow Chemical

Company :

http://www.dow.com/pusystems/index.htm

NOTICE: The information and data contained herein do not constitute sales

specifications. The product properties may be changed without notice. No liability,

warranty or guarantee of product performance is created by this document. It is

the Buyer’s responsibility to determine whether Dow products are appropriate for

Buyer’s use and to ensure that Buyer’s workplace and disposal practices are in

compliance with applicable laws and regulations. No freedom from any patents or

other industrial or intellectual property rights is granted or to be inferred.

Quality Management System certified by DQS

against DIN ENISO9001

Reg. No.055759 QM