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MATERIAL SAFETY DATA SHEET
1. IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY
PRODUCT NAME: TCC-8020A Isocyanate
CHEMICAL NAME: Aromatic Isocyanate Prepolymer
MANUFACTURER: CASS POLYMERS OF MICHIGAN, INC.
31200 STEPHENSON HWY
MADISON HEIGHTS MI 48071 USA
INFORMATION PHONE: (248) 588-2270
EMERGENCY PHONE: (703) 527-3887(Call Collect)
2. COMPOSITION/INFORMATION ON INGREDIENTS
Hazardous Materials Information System (United States)
Health 3
Flammability 1
Physical Hazard 0
Hazard Codes: *=Chronic Hazard 0=Minimal Hazard, 1=Slight Hazard, 2=Moderate Hazard, 3=Serious Hazard, 4=Severe Hazard
Material Composition
EINECS/ELINCS
Component CAS.NO Percent
No.
4,4' Diphenylmethane Diisocyanate 101-68-8 202-966-0 20% - 25%
Hazardous Materials are required to be listed if present in concentrations of 1.0% or higher. Materials posing a possible Chronic
Health Risk are required to be listed at concentrations of 0.1% or higher. Materials listed in section 2 are not necessarily hazardous.
See section 8-EXPOSURE CONTROLS/PERSONAL PROTECTION, and section 11-TOXICOLOGICAL INFORMATION for
complete hazard/exposure limit information.
NOTE: This preparation is a reaction product of the materials listed above. The hazards presented by the individual raw materials
have been listed in this MSDS in order that the maximum precautions appropriate for such materials may be taken. As a reaction
product, this preparation may not present as serious a health risk as the individual components, but caution and careful handling are
still required.
3. HAZARDS IDENTIFICATION
****Emergency Overview****
DANGER! Toxic gases and fumes may be given off during thermal decomposition or burning. Closed container may forcibly
rupture under extreme heat or if contaminated with water. Causes respiratory tract irritation. May cause allergic respiratory response.
Harmful if inhaled. Respiratory sensitizer. Lung damage and respiratory sensitization may be permanent. Causes skin irritation.
May cause allergic skin reaction. Skin sensitizer. Causes eye irritation. May cause lung damage.
EC Classification(s): Xn-Harmful, N- Dangerous for the Environment
Risk Phrases: R20: Harmful by inhalation.
R36/37/38: Irritating to the eyes, respiratory system and skin.
R42/43: May cause sensitization by inhalation and skin contact.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
(See Section 15-REGULATORY INFORMATION for complete risk phrases.)
Potential Acute Health Effects
Eyes
Causes irritation with symptoms or reddening, tearing, stinging and swelling. May cause temporary corneal injury. Vapors
may cause irritation with symptoms of burning or tearing.
Respiratory
Diisocyanate vapors or mists at concentrations above the TLV or PEL can irritate the mucous membranes in the nose, throat
and lungs, causing runny nose, sore throat, coughing, chest discomfort, shortness of breath and reduced lung function. People
with preexisting lung conditions or sensitivities may experience symptoms similar to asthma or asthma-like symptoms at
airborne concentrations below the TLV or PEL. Exposures at or above the PEL or TLV may cause bronchitis, bronchial
spasms, and pulmonary edema (fluid in the lungs). Chemical or hypersensitivity pneumonitis with flu-like symptoms such as
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fever and chills have been reported. These symptoms can be delayed up to several hours after exposure. These effects are
usually reversible in cases of acute exposure.
Skin
Causes irritation with symptoms of reddening, itching and swelling. Persons previously sensitized can experience allergic
skin reaction with symptoms of reddening, swelling, itching or rash. Cured material is very difficult to remove from skin.
Avoid direct skin contact.
Potential Chronic Health Effects
Respiratory
Repeated overexposures or single large dose may result in development of a sensitization to isocyanates with asthma or
asthma-like symptoms. This may cause the individual to react at a later date to isocyanate exposures well below the TLV or
PEL. Symptoms including chest tightness, coughing, wheezing, shortness of breath or asthmatic attack may be immediate or
delayed for several hours after exposure. Extreme asthma attacks can be life threatening. Reports indicate that, once
sensitized, an individual can experience these symptoms with exposure to dust, cold air or other non-isocyanate irritants in
addition to exposure to isocyanates. This increased lung sensitivity can persist for weeks to several years. Sensitization can
be permanent. Chronic exposure has also been reported to cause lung damage that may be permanent, including fibrosis and
decrease in lung function.
Eye
Prolonged vapor contact may cause conjunctivitis.
Skin
Repeated skin contact may cause a persistent irritation or dermatitis. Repeated or prolonged exposure may aggravate existing
dermatitis. Potent skin sensitizer. Once sensitized, and individual may react to direct skin contact and even airborne vapors
below the TLV with reddening, rash, swelling and in extreme cases blistering and hives. These symptoms may be immediate
or in some cases delayed several hours.
4. FIRST AID MEASURES
***Never give fluids or induce vomiting if patient is unconscious or is having convulsions.***
Inhalation
Move effected persons to fresh air; if effects occur, consult a physician.
Skin Contact
Immediate, continued and thorough washing in flowing water for at least 30 minutes is imperative while removing
contaminated clothing. Prompt medical consultation is essential. Wash clothing before reuse. Destroy contaminated leather
items.
Eye Contact
Wash immediately and continuously with flowing water for at least 30 minutes. Remove contact lenses after the first 5
minutes and continue washing. Obtain prompt medical consultation, preferably from an ophthalmologist.
Ingestion
Do not induce vomiting. Give one glass (ca. 2.5 dL) of water or milk if available and transport to medical facility. Do not
give anything by mouth to an unconscious person.
Note to Physician
Eyes: Stain for evidence of corneal injury.
Skin: This material is a skin sensitizer. Treat symptomatically as for contact dermatitis or thermal burn.
Ingestion: Treat symptomatically. No specific antidote. Inducing vomiting is contraindicated because of the irritating
nature of this material.
Inhalation: Treatment is essentially symptomatic. An individual having a dermal or pulmonary sensitization reaction to this
material should be removed from further exposure to isocyanates.
5. FIRE FIGHTING PRECAUTIONS
Extinguishing Media
Water fog or fine spray. Carbon dioxide. Alcohol resistant foam. Dry chemical fire extinguishers.
Unusual Fire/Explosion Hazards
Closed container may forcibly rupture under extreme heat or when contents are contaminated with water. Use cold-water
spray to cool fire-exposed containers to minimize the risk of rupture. Large fires can be extinguished with large volumes of
water applied from a safe distance, since the reaction between water and hot diisocyanate can be vigorous.
Protection of Firefighters
Firefighters should wear NFPA compliant structural firefighting protective equipment including self-contained breathing
apparatus and NFPA compliant helmet, hood, gloves and boots. Avoid contact with product. Decontaminate equipment and
protective clothing prior to reuse. During a fire, isocyanate vapors and other highly toxic and irritating fumes may be
generated by thermal decomposition or combustion. Exposure to heated isocyanates is extremely dangerous.
6. ACCIDENTAL RELEASE MEASURES
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Personal Precautions
Wear adequate personal protective equipment, see Section 8, EXPOSURE CONTROLS/PERSONAL PROTECTION.
Methods of Cleaning Up
Large spills: Contain with dike. Pump into suitable and properly labeled containers. Cover spill area with absorbent
material. Saturate absorbent material with neutralization and mix. Repeat application of neutralization solution, with
scrubbing, followed by absorbent until surface is decontaminated.
DO NOT SEAL WASTE COLLECTION CONTAINERS PRESSURE-TIGHT FOR 72 HOURS AFTER COLLECTION to
allow any generated gasses to escape. Failure to observe this practice may result in the forcible rupture (explosion) of the
container causing severe injury to bystanders.
Neutralization/Cleaning Solution
Mix equal amounts of the following to total two times the estimated volume of spilled material:
(1) Mineral spirits (80%), VM&P Naptha (15%) and household detergent (5%) and (2) A 50% solution of
monoethanolamine and water.
Additionally, a solution of 65% water, 20% isopropyl alcohol (rubbing alcohol), 10% household ammonia and 5% detergent is
an effective cleaner and neutralizer for residual isocyanates if the mixture mentioned above is not readily available. Scrub the
spill area with the neutralizing solution and a stiff bristle brush and absorb the washings for safe disposal. Repeat until no
residue remains.
7. HANDLING AND STORAGE
Handling
Keep container dry. Do not ingest. Do not breathe gas/fumes/dust/spray/dust. Use adequate ventilation to keep airborne
isocyanate levels below exposure limits. Warning properties (odors, eye, nose and throat irritation) are not sufficient to
prevent over exposure. Odors are not detectable until well over triple the exposure limits. This material can produce
asthmatic sensitization upon a single concentration exposure, or repeated low-level exposures. Individuals with lung
problems or previous sensitization must not be exposed to vapor or spray mist. Avoid contact with skin and eyes. Wear
appropriate skin and eye protection. Wash thoroughly after handling. Avoid breathing smoke or mist created from
overheating or burning this material. Store in tightly sealed containers under a blanket of dry, inert gas. Do not reseal
containers of moisture contamination is suspected.
Storage Temperature and Shelf Life
Store between 10篊 and 27篊 for maximum shelf life.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Hazardous Component Control Parameters ?br>
Component CAS. No. EINECS Percent Exposure Limits Source
4,4' Diphenylmethane 0.005ppm TWA TLV ACGIH
101-68-8 202-966-0 20% - 25%
Diisocyanate 0.02ppm Ceiling OSHA
-No Further Data Available-
Engineering Controls
Use of local exhaust is highly recommended. Local exhaust ventilation may also be necessary for operations involving
machining of cured material to eliminate nuisance dusts.
Personal Protective Equipment
Respiratory Protection
Airborne exposures above the TLV can occur in inadequately ventilated areas when this material is heated, sprayed or
otherwise aerosolized. In these cases, respiratory protection must be worn. Respiratory protection available for use includes
supplied-air respirators such as SCBA apparatus or other positive pressure or continuous flow breathing apparatus. Air
purifying respirators may also be used provided that the cartridges are either equipped with an end-of-service-life indicator or
are part of a change-out schedule that ensures that cartridges are replaced well before the end of their service life. Use of the
above safety equipment does not imply that airborne contaminate levels can or should be ignored.
Skin Protection
Stringent precautions should be taken to avoid skin contact. Spray application of materials based on this product enhances the
risks of skin exposure. Wear impermeable protective clothing, preferably of the type that can be disposed of after use.
Selection of specific items such as face shield, gloves, boots, apron, or full body suit will depend on operation. Safety shower
should be located in immediate work area. Remove contaminated clothing immediately, wash skin area with soap and water,
and launder clothing before reuse or dispose of properly. Items which cannot be decontaminated, such as shoes, belts and
watchbands, should be removed and disposed of properly.
Hand protection
Use of gloves is required. Use Nitrile rubber, Butyl rubber or Neoprene gloves.
NOTICE: The selection of a specific glove for a particular application and duration of use in a workplace should also take into account
all requisite workplace factors such as, but not limited to: Other chemicals which may be handled, physical requirements (cut/puncture
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protection, dexterity, thermal protection), as well as the instructions/specifications provided by the glove supplier.
Eye/Face Protection
Eye wash fountain should be located in immediate work area. Use chemical goggles. A full-face shield and supplied-air vapor
respirator is recommended for operations involving spraying or other operations placing this material under pressurized
conditions.
9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance : Mobile Liquid
Color: Brown to Amber liquid
Odor : Musty.
Specific gravity : 1.00 ?1.10
Vapor pressure : Not Determined
Boiling point/range : Not Determined
Freezing point/range : Not Determined
Water solubility : Insoluble-Water Reactive.
pH : Not Determined
Flash point : >392篎; (>200篊)
Flammability-LFL : Not Determined
Flammability-UFL : Not Determined
% volatile: 0g/L (0%)
10. STABILITY AND REACTIVITY
Chemical Stability
Stable under normal handling and storage conditions, see Section 7,Handling and Storage.
Materials to Avoid
Avoid water, amines, strong bases, alcohols, copper alloys, aluminum or temperatures above 350篎 (177篊) In combination
with isocyanates, these materials will result in a temperature and/or pressure increase or polymerization.
11. TOXICOLOGICAL INFORMATION
Acute toxicity
This finished product has not been tested to determine individual toxicological/ecological limits. Individual components of
this mixture have been independently tested by the raw material manufacturers and any known results have been presented
below. The results for the individual components may not be representative of the toxicity of this finished product.
Ingredient Name CAS No. % Test Result Route Species
4,4' Diphenylmethane LD50 >10,000 mg/kg Oral Rat
101-68-8 20% - 25%
>2240 mg/m3
Diisocyanate LD50 Inhalation Rat
-No Further Data Available-
Potential Chronic Health Effects
Respiratory
Repeated overexposures or single large dose may result in development of a sensitization to isocyanates with asthma or
asthma-like symptoms. This may cause the individual to react at a later date to isocyanate exposures well below the TLV or
PEL. Symptoms including chest tightness, coughing, wheezing, shortness of breath or asthmatic attack may be immediate or
delayed several hours after exposure. Extreme asthma attacks can be life threatening. Reports indicate that, once sensitized,
an individual can experience these symptoms with exposure to dust, cold air or other non-isocyanate irritants in addition to
exposure to isocyanates. This increased lung sensitivity can persist for weeks to several years. Sensitization can be
permanent. Chronic exposure has also been reported to cause lung damage that may be permanent, including fibrosis and
decrease in lung function.
Eye
Prolonged vapor contact may cause conjunctivitis.
Skin
Repeated skin contact may cause a persistent irritation or dermatitis. Repeated or prolonged exposure may aggravate existing
dermatitis. Potent skin sensitizer. Once sensitized, and individual may react to direct skin contact and even airborne vapors
below the TLV with reddening, rash, swelling and in extreme cases blistering and hives. These symptoms may be immediate
or in some cases delayed several hours.
Carcinogen
This product contains no materials that are reported as known or suspect carcinogens in levels above 0.1%
Mutagen
This product contains no materials that are reported as known or suspect mutagens in levels above 0.1%
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Reproductive Hazard
This product contains no materials that are known or suspected of causing a reproductive hazard in levels above 0.1%.
12. ECOLOGICAL INFORMATION
Persistence/degradability:
The material contains components that show little or no evidence of biodegradability. Caution should be taken to prevent
release to the environment. See Section 13 for further information.
Ecotoxicity Data:
Ingredient Name CAS No. % Test Result Species
4,4' Diphenylmethane LC50, 96 hrs >500 mg/L Zebra Fish
101-68-8 20% - 25%
Diisocyanate LC50, 48 hrs >500 mg/L Daphnia
-No Further Information Available-
Individual components of this mixture have been independently tested by the raw material suppliers and any known results have been
presented above. The results for the individual components may not be representative of the ecological toxicity of this finished
product. This finished product has not been tested to determine individual toxicological/ecological limits Great Caution should be
taken to prevent release to the environment. See Section 13 for further information.
13. DISPOSAL CONSIDERATIONS
Disposal
Preferred method of disposal includes incineration under controlled conditions in accordance with all local and national laws
and regulations. The generation of waste should be avoided or minimized wherever possible. Untreated material is not
suitable for disposal. Waste, even small quantities, should never be poured down drains, sewers or watercourses. Waste must
be disposed of in accordance with federal, state and local environmental control regulations. This material, when properly
mixed and cured with its resin component at the proper mix ratio, may be safely landfilled.
Contaminated packaging
Empty containers can only be disposed of when the remaining product adhering to the container walls has been removed.
Hazard warning labels should be removed from the container only after it has been properly emptied.
14. TRANSPORT INFORMATION
Land/Air/Sea/Rail
Proper Shipping Name: Environmentally Hazardous Substance, Liquid, NOS (4,4' Diphenylmethane Diisocyanate)
UN Number: UN-3082
Hazard Class: 9
Packing Group: III, Marine Pollutant
15. REGULATORY INFORMATION
U.S Regulations
OSHA Hazcom Standard Rating:
Hazardous
Toxic Substances Control Act (TSCA) 12(b) Components:
None Known
OSHA Hazard Communication Standard (29CFR1910.1200) hazard class(es):
Acute health hazard, Chronic health hazard.
EPA SARA Title III section 302 (40CFR370) Extremely Hazardous Substances:
None Known
EPA SARA Title III section 313 (40 CFR 372) Toxic Chemicals above "de minimus" levels:
Diphenylmethane Diisocyanate (CAS#101-68-8)
U.S. State Regulations
CAIFORNIA PROP 65: This product contains the following substance known to the State of California to cause cancer:
None Known
EEC MARKING AND LABELLING
Hazard symbol(s):
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Xn N
EU Labeling Classification: Xn-Harmful, N- Dangerous for the Environment
Risk Phrases: R20: Harmful by inhalation.
R36/37/38: Irritating to the eyes, respiratory system and skin.
R42/43: May cause sensitization by inhalation and skin contact.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
environment
EINECS Status: All components of this product are included in the European Inventory of Existing Chemical
Substances (EINECS) in compliance with Council Directive 67/548/EEC and its amendments.
CHIP3 Regulations have been applied and meets all requirements.
CANADIAN REGULATIONS
WHMIS Classification: D2A - respiratory tract sensitizer
D2B - skin sensitizer
D2B - eye or skin irritant
WHMIS Symbol(s):
Safety Phrases: S23: Do not breathe vapor/gas/fumes/spray
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (Show
the label where possible)
DSL: Components of this product have been reported to Environment Canada in accordance with
subsection 25 of the Canadian Environmental Protection Act and are included on the Domestic
Substances List.
16. OTHER INFORMATION
Abbreviations:
ACGIH: American Conference of Government Industrial Hygienists
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
TWA: Time-Weighted Average
LD50: Lethal Dose (50%)-The minimum dose required for lethal effects in 50% of a given population of test specimens.
LC50: Lethal Concentration (50%)- The minimum concentration required for lethal effects in 50% of a given population of
test specimens
NIOSH: National Institute for Occupational Safety and Health
WHMIS: Workplace Hazardous Material Information System
DSL: Domestic Substances List
CAS: Chemical Abstracts Service
To the best of our knowledge, the information contained herein is accurate. Final determination of the suitability of any material is the
sole responsibility of the users. All materials may present unknown hazards and should be used with caution. Although certain hazards
are described herein, we cannot guarantee that these are the only hazards which exist.
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