Material Safety Data Sheet Urexpan NR-201
Date last revised March 29, 2007
I. GENERAL INFORMATION
Chemical Name & Synonyms Trade Name & Synonyms
ALIPHATIC URETHANE SEALANT Urexpan NR-201
Chemical Family Formula
SILYL TERMINATED POLYURETHANE MIXTURE
Proper DOT Shipping DOT Hazard Classification
CAULKING COMPOUND NONE
Manufacturer Manufacturer鈥檚 Phone Number
PECORA CORPORATION 215-723-6051
Manufacturer鈥檚 Address Chemtrec Phone Number
165 Wambold Road, Harleysville, PA 19438 800-424-9300
II. INGREDIENTS
Principal Hazardous Components Percent Threshold Limit Value (Units)
OSHA PEL (respirable): 5 mg/m3
CALCIUM CARBONATE (CAS # 1317-65-3) 30 - 60 OSHA PEL (total dust): 15 mg/m3
PHTHALATE ESTERS (CAS # 111381-90-9; 111381-
ACGIH: 5mg/m3 TWA
20 - 40
89-6; 68515-45-7; 68515-44-6; 85507-79-5)
S 10 - 35
OSHA PEL (respirable):
QUARTZ (CAS # 14808-60-7) <1.0
10 mg/m3/(%SiO2 + 2) TWA
FURAN (CAS # 110-00-9) <0.1 Not established
OSHA PEL: 260 mg/m3 TWA
METHANOL (CAS # 67-56-1) <0.1
HMIS RATING:
HEALTH=1; FLAMMABILITY=1; REACTIVITY=1
III. PHYSICAL DATA
Boiling Point (oF) Specific Gravity (H20 = 1)
212 - 220O F. 1.3 - 1.4
Vapor Pressure (mm Hg.) Percent Volatile by Volume (%)
NOT ESTABLISHED < 2%
Vapor Density (Air = 1) Evaporation Rate (ETHER= 1)
HEAVIER SLOWER
Solubility in Water pH
INSOLUBLE NA
Appearance & Odor
SMOOTH PASTE, VERY SLIGHT ALCOHOL ODOR
IV. FIRE & EXPLOSION HAZARD DATA
Flash Point (Test Method) Auto Ignition Temperature
> 200O F T.C.C. UNKNOWN
Flammable Limits LEL UEL
UNKNOWN UNKNOWN
Extinguishing Media:
WATER SPRAY, CARBON DIOXIDE, FOAM, DRY CHEMCIALS
Special Fire Fighting Procedures: WEAR SELF-CONTAINED BREATHING APPARATUS WHEN FIGHTING FIRES
Unusual Fire & Explosion Hazards:
NONE KNOWN
Urexpan NR-201 PAGE 2 OF 2
V. Health Hazard Data
OSHA Permissible Exposure Limit ACGIH Threshold Limit Value
SEE SECTION II SEE SECTION II
Carcinogen 鈥? NTP Program Carcinogen 鈥? IARC Program
YES (furan, respirable quartz) YES (furan, respirable quartz)
Symptoms of Exposure: Prolonged or repeated exposure to uncured sealant or to vapors generated during curing may cause irritation
of the skin, eyes, or respiratory tract. Use with adequate ventilation. Avoid breathing vapor, mist, or dust. Wear chemical resistant
protective gloves. Ingestion may cause irritation of the intestinal tract. Animal studies of one of the components indicate that
ingestion of high doses may adversely affect the developing fetus.
Medical Conditions Aggravated By Exposure:
NONE KNOWN
Primary Route (s) of Entry:
SKIN AND INHALATION
Emergency First Aid:
In case of eye contact, immediately rinse with clean water for at least 15 minutes. Obtain medical attention if pain, blinking, tears, or
redness persist. Wash skin thoroughly with soap and water. If irritation develops and persists, obtain medical attention. If inhaled,
remove to fresh air. If difficulty in breathing exists, seek medical attention immediately. In case of ingestion, obtain medical
attention.
VI. REACTIVITY DATA
Stability Unstable Conditions to Avoid
Stable
X
EXCESSIVE HEAT
Materials to Avoid
Incompatibility NONE KNOWN
Hazardous May Occur Conditions to Avoid
X
Polymerization Will Not Occur EXCESSIVE HEAT
Hazardous Decomposition Products:
CO, CO2 AND POSSIBLE OXIDES OF NITROGEN
VII. ENVIRONMENTAL PROTECTION PROCEDURES
Spill Response: SCRAPE UP AND PLACE IN CONTAINERS, WASH AREAS WITH WARM, SOAPY WATER OR MINERAL
SPIRITS.
Waste Disposal Method: BURY IN SUITABLE LANDFILL WHERE PERMITTED UNDER APPROPRIATE LOCAL, STATE
AND FEDERAL REGULATIONS
VIII. SPECIAL PROTECTION INFORMATION
Eye Protection Skin Protection
GLASSES OR GOGGLES CHEMICAL RESISTANT GLOVES
Respiratory Protection (Specific Type) Ventilation Recommended
ORGANIC TYPE IN CONFINED AREAS GENERAL ROOM VENTILATION
Other Protection:
IX. SPECIAL PRECAUTIONS
Hygienic Practices In Handling & Storage:
STORE IN COOL, DRY PLACE, WASH HANDS BEFORE EATING OR SMOKING
Precautions For Repair & Maintenance of Contaminated Equipment:
SEE SECTION V
Other Precautions:
NONE
KEEP OUT OF REACH OF CHILDREN!
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