=====================  Product Identification  =====================

MSDS NAME:DESMODUR N-3300, DA-17
NIIN:00F006076
MSDS Number: BBTWH
=== Responsible Party ===
Company:MOBAY CHEMICAL CORP/PITTSBURGH, PA 15205-9741
Emergency Phone Num:(412) 923-1800
CAGE:DO465
=== Contractor Identification ===
Company:BAYER CORPORATION
Address:100 BAYER ROAD
Box:City:PITTSBURGH
State:PA
ZIP:15205-9741
Country:US
Phone:800-662-2927; 202-483-7616
CAGE:19511
Company:MOBAY CHEMICAL CORPORATION
Address:8400 HAWTHORN RD
Box:City:KANSAS CITY
State:MO
ZIP:64120
Phone:301-321-5200
CAGE:DO465

=============  Composition/Information on Ingredients  =============

Name:1,6-DIISOCYANATOHEXANE  (HEXAMETHYLENE DIISOCYANATE)
CAS:822-06-0
RTECS #:MO1740000
Fraction by Wt: <0.3%
ACGIH TLV:0.005 PPM; 9192
EPA Rpt Qty:1 LB
DOT Rpt Qty:1 LB

=====================  Hazards Identification  =====================

Effects of Overexposure:IRRITATION TO SKIN, EYES, RESP TRACT, HEADACHE,
    TIGHTNESS IN CHEST, BRONCHITIS & DERMATITIS.

=======================  First Aid Measures  =======================

Eyes: FLUSH W/WATER FOR AT LEAST 15 MINUTES. OBTAIN MED ATT.
    SKIN: REMOVE CONTAMINATED CLOTHING. WASH W/SOAP & WATER.
    INHALATION: MOVE FROM EXPOSURE. ADMINISTER OXYGEN/ARTIFICIAL RESP.
    OBTAIN MEDICAL  ATTENTION. INGESTION: CONSULT PHYSICIAN.

=====================  Fire Fighting Measures  =====================

Flash Point:338F PMCC
Extinguishing Media:FOAM, DRY CHEMICAL, CO2
Fire Fighting Procedures:SCBA FOR TOXIC GASES/SMOKE/DECOMPOSITION &
    COMBUSTION PRODS.
Unusual Fire/Explosion Hazard:CLOSED CONTAINER MAY EXPLODE WHEN EXPOSED
    TO EXTREME HEAT OR BURST.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE NON-ESSENTIAL PERSONNEL. EQUIP
    CLEAN-UP CREW W/APPROPRIATE PROTECTIVE EQUIPNT. DIKE OR IMPOUND
    SPILLED MATERIAL & CONTROL FURTHER SPILLAGE IF FEASIE. COVER SPILL
    W/SAWDUST, VERMICULITE, FULLE R'S EARTH OR ABSORBENT MATERL.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE IN TIGHTLY CLOSED CONTAINER &
    PROTECT FROM MOISTURE & FOREIGN MATERIALS. STORAGE TEMPERARES: 32F
    TO 122F.
Other Precautions:MAY SLOWLY POLYMERIZE AT MAXIMUM STORAGE TEMP OF
    122F. MOISTURE ENTERING CONTAINER CAUSES REACTION PRODUCING CO2 &
    CAN CAUSEURSTING.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:ORGANIC VAPOR RESP MAY BE NECESSARY.	      
    _
Ventilation:PROVIDE LOCAL EXHAUST VENTILATION TO KEEP