Product ID:DESMODUR N-3300, D-429
MSDS Date:08/20/1993
FSC:6850
NIIN:00N057416
MSDS Number: CDZMK

MILES INC

MOBAY RD
PITTSBURGH, PA 15205-9741
US

Emergency Phone: 412-923-1800

Info Phone: 800-662-2927

Cage: MILES

MILES INC

PITTSBURGH, PA 15205-9741 US

Telephone: 800-662-2927

Cage: MILES

ISOCYANIC ACID, HEXAMETHYLENE ESTER, POLYMERS; (HOMOPOLYMER

CAS: 28182-81-2

RTECS: NQ9170000

Fraction By Weight: 100%

OSHA PEL N/K

ACGIH TLV: N/K

HEXANE, 1,6-DIISOCYANATO-; (HEXAMETHYLENE DIISOCYANATE)

CAS: 822-06-0

RTECS: MO1740000

OSHA PEL N/K

ACGIH TLV: 0.005 PPM

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

AND/OR FEELING LIKE THAT OF FINE DUST IN EYES.

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AS RSLT OF

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INDIVIDUALS WILL DEVELOP ISOCYANATE SENSIT(CHEM

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ISOCYANATE @ LEVELS WELL BELOW TLV/MGL. THESE SYMPS,

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OF BREATH/ASTHMATIC ATTACK, COULD BE IMMED/DELAYED UP

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SPECIFIC ASTHMATIC RESPONSES, THERE ARE RPTS THAT

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UPON EXPOS TO DUST, COLD AIR/OTHER IRRITANTS. THIS

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CASES FOR SEVERAL YRS. CHRONIC OVEREXP TO ISOCYANATES

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LUNG FUNC, WHICH MAY BE PERM. SENSIT MAY BE EITHER

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CAUSE REDDENING, SWELL, RASH, SCALING/BLISTERING. IN

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DEVELOP AS RSLT OF CONT W/VERY SM AMTS OF LIQ

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CAN RSLT IN IRRIT & POSS CORR

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MOVE TO

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RESP AS NEEDED. OBTAIN MED ATTN. ASTHMATIC-TYPE

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HRS. TREATMENT IS ESSENTLY SYMPTOMATIC. CONSULT

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WATER TO DRINK DO NOT GIVE ANYTHING BY MOUTH TO

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CONTACT NEHC FOR MORE SPECIFIC INFORMATION (PF N).

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OTHER ABSORB MATL. POUR DECONTAM SOLN OVER SPILL

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SPECIFIC INFORMATION CONTACT NEHC .

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HAZARD COMMUINICATION STD.

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& ENVIR CONCS. OBSERVE OSHA RESPS FOR ERSP USE

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BE UTILIZED. EXHAUST AIR MAY NEED TO BE CLEANED BY

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CREAMS ARE USED, KEEP AREA PROTECTED ONLY

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LD50 LC50 Mixture:LD50:(ORAL,RAT) >10000 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:INHAL:HDI VAPS &/OR
POLYISOCYANATE AEROSOLS @ CONCS >TLV/MGL RESPECTIVELY CAN
IRRITATE(BURNING SENSATION) MUC MEMB IN RESP TRACT(NOSE, THROAT,
LUNGS) CAUSING RUNNY NOSE, SORE THROAT, COUGH, CHES T DISCOMFORT,
SHORTNESS OF BREATH & REDUCED LUNG FUNC(BRTHG OBSTRUCTION). EXPOS
WELL ABOVE TLV/MGL MAY (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:LEAD TO BRONCH, BRONCHIAL SPASM & PULM
EDEMA (FLUID IN LUNGS). THESE EFTS ARE USUALLY REVERSIBLE,
CHEM/HYPERSENS PNEUM, W/FLU-LIKE SYMPS (E.G. FEVER, CHILLS) HAS
ALSO BEEN RPTD. SKIN:ISOCYANA TES REACT W/SKIN PROTEIN & MOISTURE &
CAN CAUSE IRRIT. SYMPS OF IRRIT MAY BE REDDENING, SWELL, RASH,
SCALING OR (SUPDAT)
Medical Cond Aggravated by Exposure:ASTHMA & OTHER RESPIRATORY
DISORDERS (BRONCHITIS, EMPHYSEMA, HYPERREACTIVITY), SKIN ALLERGIES,
ECZEMA.

First Aid:EYES:FLUSH W/CLEAN, LUKEWARM WATER(LOW PRESS) FOR @ LST 15
MINS, WHILE LIFTING EYELIDS. REFER INDIVIDUAL TO
PHYS/OPHTHALMOLOGIST FOR IMMED FOLLOW-UP. SKIN:REMOVE CONTAMD CLTHG
IMMED. WASH AFFECTED ARE A THOROUGHLY W/SOAP & WATER. WASH CONTAMD
CLTHG THOROUGHLY BEFORE REUSE. FORE SEV EXPOSURES, GET UNDER SFTY
SHOWER AFTER REMOVING CLTHG, THEN GET MED ATTN. FOR LESSER
EXPOSURES, SEEK MED ATTN(ING 15)

Flash Point Method:SCC
Flash Point:460F,238C
Extinguishing Media:DRY CHEMICAL; CARBON DIOXIDE; FOAM; WATER SPRAY FOR
LARGE FIRES.
Fire Fighting Procedures:NIOSH APPRVD SCBA & FULL PROT EQUIP . DURING
FIRE, HDI VAPS & OTHER IRRITATING, HIGHLY TOX GASES MAY BE
GENERATED BY THERM DECOMP/COMBUST.
Unusual Fire/Explosion Hazard:CLOSED CONTAINER MAY EXPLODE WHEN EXPOSED
TO EXTREME HEAT OR BURST WHEN CONTAMINATED WITH WATER (CO*2
EVOLVED).

Spill Release Procedures:EVAC NONESSTNL PERS. REMOVE ALL SOURCES OF
IGNIT & VENTIALTE AREA. NOTIFY APPROP AUTH IF NEC. PUT ON PERSONAL
PROT EQUIP. DIKE/IMPOUND SPILLED MATL & CTL FURTHER SPILLAGE IF
FEASIBLE. COVER SPILL W/SA WDUST, VERMICULITE, FULLER'S EARTH OR
(ING 20)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STOR
TEMP(MIN/MAX)-30F(-34C)/122F(50C). STORE IN TIGHTLY CLSD CNTNRS TO
PVNT MOISTURE CONTAM. DO NOT RESEAL IF CONTAM IS SUSPECTED.
Other Precautions:AT MAX STOR TEMPS NOTED, MATL MAY SLOWLY POLYMERIZE
W/OUT HAZ. IDEAL STOR TEMP RANGE FOR EASE OF HNDLG IS 50-81F
(10-27C). AVOID CONT W/SKIN & EYES. EMPLOYEE EDUCATION & TRAINING
IS SAFE USE & HNDLG O F PROD ARE REQD UNDER OSHA (ING 22)

Respiratory Protection:RESP THAT IS REC/APPRVD FOR USE IN ISOCYANATE
CONTAINING ENVIR (NIOSH APPRVD AIR-PURIFYING/FRESH AIR SUPPLIED)
MAY BE NEC FOR SPRAY APPLIC/OTHER SITUATIONS SUCH AS HIGH TEMP USE
WHICH MAY RPDCE INHAL EXPOS. CONSIDER TYPE OF APPLIC(ING 23)
Ventilation:EXHAUST VENT SUFFICIENT TO KEEP AIRBORNE CONCS OF HDI &
POLYISOCYANATE BELOW THEIR RESPECTIVE TLV & MGL MUST (ING 24)
Protective Gloves:PERMEATION RESISTANT GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:ANSI APPRVD EYE WASH & DELUGE SHOWER . COVER
AS MUCH OF EXPOS SKIN AREA AS POSS W/APPROP CLTHG. IF SKIN (ING 25)
Work Hygienic Practices:DO NOT WEAR CONT LENSES. PREC TAKEN BECAUSE
HNDLG PROD DOES NOT ALLOW CONT W/EYES/SKIN. CONT NEHC FOR INFO .
Supplemental Safety and Health
SOL IN H*2O:RESIN IS INSOL-REACTS SLOWLY W/WATER TO LIBERATE CO*2 GAS.
% VOLAT:NEGLIG BY WT. EFTS OF OVEREXP:BLISTERING. SOME PERSONS MAY
DEVELOP SENSIT FROM CONT. CURED MATL IS DFCLT TO REMOVE. EYE:L IQ &
AEROSOLS OF PROD ARE IRRIT & CAN CAUSE PAIN, TEARING, REDDENING &
SWELL ACCOMPANIED BY STINGING SENSATION (ING 3)

Boiling Pt:B.P. Text:446F,230C
Vapor Pres:SEE ING 1
Spec Gravity:1.17 @ 68F
Evaporation Rate & Reference:NOT KNOWN
Solubility in Water:SUPP DATA
Appearance and Odor:CLEAR/PALE YELLOW LIQUID, SLIGHT ODOR.
Percent Volatiles by Volume:SUPDAT

Stability Indicator/Materials to Avoid:YES
WATER, AMINES, STRONG BASES, ALCOHOLS, METAL COMPOUNDS & SURFACE ACTIVE
MATERIALS.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:BY HIGH HEAT AND FIRE:CARBON DIOXIDE,
CARBON MONOXIDE, OXIDES OF NITROGEN, BCN, HDI.
Conditions to Avoid Polymerization:CONT W/MOISTURE/OTHER MATLS WHICH
REACT W/ISOCYANATES OR TEMPERATURES OVER 400F (204C).

Waste Disposal Methods:WASTE MUST BE DIPOSED OF I/A/W FEDERAL, STATE &
LOCAL ENVIR CONTROL REGS. INCIN IS PREFERRED METH. EMTPY CNTNRS
MUST BE HNDLD W/CARE DUE TO PROD RESIDUE. DECONTAMINATE CNTNRS
PRIOR TO DISP. DO NOT HEA T/CUT EMPTY CNTNR W/ELECTRIC OR GAS
TORCH.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.