Material Safety Data Sheet
HobbyCast 110 Part A
Date of Preparation: 1/20/04 Revision:
Section 1 - Chemical Product and Company Identification
Product/Chemical Name: HobbyCast 110 Part A HMIS
Chemical Formula: Isocyanate 2*
H
CAS Number: N/A 1
F
Other Designations: N/A 1
R
Intended Use or Product Type: Unfilled polyurethane casting system PPE
Manufacturer: Freeman Manufacturing and Supply Company, 1101 Moore Road, Avon, OH 44011, Sec. 8
Phone (440)934-1902, FAX (440)934-7200, Hours of Operation 8-5, Emergency Phone Number 800-424-9300.
Emergency Overview
Can cause skin irritation, eye irritation, allergic respiratory reaction,
and allergic skin reaction. Can be harmful if inhaled.
Section 2 - Composition / Information on Ingredients
Exposure Limits Exposure Limits
OSHA ACGIH
Chemical Identity CAS No. PEL STEL TWA STEL MFR
101-68-8 0.02 ppm none estab. 0.005 ppm none estab. none estab.
Benzene, 1,1'-Methylenebis[4-Isocyanato-
Common Name: MDI *
64742-94-5 none estab. none estab. none estab. none estab. none estab.
Solvent Naphtha (petroleum), heavy aromatic
Common Name: Heavy aromatic naphtha *
64742-95-6 none estab. none estab. none estab. none estab. TWA 50
Solvent Naphtha (petroleum), light aromatic
ppm
Common Name: Light aromatic naphtha *
8052-41-3 500 ppm none estab. 100 ppm none estab. none estab.
Stoddard Solvent
Common Name: Aliphatic petroleum
distillates *
9016-87-9 none estab. none estab. none estab. none estab. none estab.
Isocyanic Acid,
Polymethylenepolyphenylene Ester
Common Name: Polymethylene polyphenyl
isocyanate *
95-63-6 none estab. none estab. none estab. none estab. none estab.
Benzene, 1,2,4-trimethyl-
Common Name: Pseudocumene *
* Carcinogenicity: IARC, NTP, and OSHA - Not Reviewed * = OSHA Hazardous Ingredient
Section 3 - Physical and Chemical Properties
Physical State: Liquid Water Solubility: Reacts with water
Color: Brown Boiling Point: Not determined
Vapor Pressure: Not determined % Volatile: Negligible
Vapor Density (Air=1): > 1 Evaporation Rate: Not determined
pH: Not determined
Specific Gravity (H2O=1, at 4 癈): 1.01
HobbyCast 110 Part A Revision:
Section 4 - Fire-Fighting Measures
NFPA
Flash Point: >200 癋 (>93 癈)
Flash Point Method: Estimated
1
LEL: Not established
1
2
UEL: Not established
--
Extinguishing Media: Carbon dioxide, dry chemical, foam, water.
Unusual Fire or Explosion Hazards: Decomposition and combustion products may be toxic. Avoid water
contamination in closed containers or confined spaces. Carbon dioxide evolved.
Fire-Fighting Equipment: Use self-contained breathing apparatus.
Section 5 - Stability and Reactivity
Stability: Stable.
Polymerization: Hazardous polymerization may occur.
Incompatibility: Water, alcohols, strong oxidizing agents, strong bases, metal-organic compounds.
Conditions to Avoid: Contamination with moisture and other products that react with isocyanates. Avoid prolonged heating
over 160F or storing below 75F. Avoid water contamination.
Hazardous Decomposition Products: Combustion may form toxic materials, such as carbon dioxide, carbon monoxide,
benzene, toluene, oxides of nitrogen, hydrogen cyanide.
Section 6 - Health Hazard Information
Potential Health Effects
Primary Entry Routes: Dermal: heated product may produce inhalable vapors.
Overexposure Effects: Contact with liquid causes eye and skin irritation. If inhaled causes breathlessness, chest discomfort,
and reduced pulmonary function. May cause allergic skin and respiratory reactions in some individuals, leading to asthma type
spasms of the bronchial tubes and difficulty in breathing.
Medical Conditions Aggravated by Exposure: Persons with asthmatic-type conditions, chronic bronchitis, other chronic
respiratory diseases, eye conditions or recurrent skin eczema or sensitization should be excluded from working with isocyanates
Emergency and First Aid Procedures
Inhalation: Remove to fresh air. Call a physician.
Eye Contact: Immediately flush with water for at least 15 minutes. Call a physician.
Skin Contact: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Destroy
contaminated shoes.
Ingestion: If conscious, give 2-4 glasses of water to drink. Do not induce vomiting. Call a physician.
Additional Information: Referral to a physician is recommended if there is any question about the seriousness of any injury.
Section 7 - Spill, Leak, and Disposal Procedures
Accidental Release Measures: Absorb with absorbent material and place in open top container. Under good ventilation,
decontaminate absorbant and spill area with a mixture of 90% water, 8% ammonia and 2% detergent (exothermic reaction).
Leave ventilated 24 hours before disposal. Avoid contact.
Disposal Considerations
Waste Disposal Method: Consult qualified local or corporate personnel for method that will comply with local, state and
federal health and environmental regulations.
Ecological Information: N/A
Toxicological Information:
Sensitization: Causes allergic skin and respiratory reactions.
Skin Irritation: Irritant.
Eye Irritation: Irritant.
Page 2 of 4
Revision: HobbyCast 110 Part A
Regulatory Information
US Federal Regulations:
Occupational Safety and Health Act (OSHA): This Material Safety Data Sheet (MSDS) has been prepared in compliance
with the federal OSHA Hazard Communication Standard 29 CFR 1910.1200. This product is considered to be a hazardous
chemical under that standard.
Resource Conservation and Recovery Act (RCRA): Not specifically listed as a hazardous waste under RCRA (40 CFR
261). However, it is strongly recommended that compound be treated as a hazardous waste and disposed of accordingly.
SARA Title III: Section 313 Toxic Chemical List (TCL): This product contains a toxic chemical(s) for routine annual toxic
chemical release reporting under Section 313 (40 CFR 372). This information must be included in all MSDS's copied or
distributed for this material.
Chemical Name: Isocyanic Acid, Polymethylenepolyphenylene Ester
Common Name: Polymethylene polyphenyl isocyanate
Percent in Composition: 35.64% by wt
Comment:
Chemical Name: Benzene, 1,1'-Methylenebis[4-Isocyanato-
Common Name: MDI
Percent in Composition: 29.16% by wt
Comment:
Chemical Name: Benzene, 1,2,4-trimethyl-
Common Name: Pseudocumene
Percent in Composition: 1.548% by wt
Comment:
TSCA Section 8(b) - Inventory Status: Chemical components listed on TSCA Inventory.
TSCA Section 12(b) - Export Notification: This product does not contain any chemical(s) that are subject to a Section 12(b)
export notification.
State Regulations:
Pennsylvania Right-to-Know: The following is required composition information:
Chemical Name: Isocyanic Acid, Polymethylenepolyphenylene Ester
Common Name: Polymethylene polyphenyl isocyanate
CAS Number: 9016-87-9
Comment: Not on Pennsylvania Hazardous Substance List
Chemical Name: Benzene, 1,1'-Methylenebis[4-Isocyanato-
Common Name: MDI
CAS Number: 101-68-8
Comment: Environmental Hazardous Substance
Chemical Name: 2,2,4-Trimethyl-1,3-Pentanediol Diisobutyrate
Common Name: Trimethyl pentanediol diisobutyrate
CAS Number: 6846-50-0
Comment: Not on Pennsylvania Hazardous Substance List
Chemical Name: Solvent Naphtha (petroleum), light aromatic
Common Name: Light aromatic naphtha
CAS Number: 64742-95-6
Comment: Not on Pennsylvania Hazardous Substance List
Chemical Name: Solvent Naphtha (petroleum), heavy aromatic
Common Name: Heavy aromatic naphtha
CAS Number: 64742-94-5
Comment: Not on Pennsylvania Hazardous Substance List
Page 3 of 4
HobbyCast 110 Part A Revision:
Chemical Name: Stoddard Solvent
Common Name: Aliphatic petroleum distillates
CAS Number: 8052-41-3
Comment: Hazardous Substance
Chemical Name: Benzene, 1,2.4-trimethyl-
Common Name: Pseudocumene
CAS Number: 95-63-6
Comment: Environmental Hazardous Substance
Section 8 - Exposure Controls / Personal Protection
Engineering Controls: General mechanical and local exhaust in accordance with ACGIH recommendations.
Respiratory Protection: If a person is concerned with exposure to isocyanates, an organic respirator can provide protection at
less than the TLV. It is not a requirement at an exposure level less than the TLV. For exposures in excess of the TLV, an air-
supplied respirator would be required. Conditions that may create exposure above the TLV are spray applications, the material
being strongly heated in excess of 125F before application, or the use of material in poorly ventilated areas.
Eye Protection: Wear splash-proof chemical goggles.
Skin Protection: Wear impermeable gloves.
Section 9 - Special Precautions and Comments
Handling and Storage
Signal Word: Warning!
Precautions: Can cause skin irritation, allergic respiratory reaction, and allergic skin reaction. Can be harmful if inhaled.
Avoid breathing vapor or mist. Avoid contact with skin and clothing. Keep container closed when not in use. Use with
adequate ventilation. Wash thoroughly after handling.
Other Handling Information: Nuisance dust may be generated when sanding or sawing cured material.
DOT Transportation Data (49 CFR 172.101):
Shipping Name: Packaging Authorizations Quantity Limitations
Resin Compounds, N.O.I. a) Passenger, Aircraft, or Railcar:
Technical Shipping Name: Non-bulk Packaging: b) Cargo Aircraft Only:
Non-Bulk
Hazard Class:
ID No.: Vessel Stowage Requirements
Not regulated as a hazardous
Packing Group: a) Vessel Stowage:
material by the U.S. Dept. of
Label: b) Other:
Transportation (DOT) 49CFR
172.101 hazardous materials table
Disclaimer: The following supercedes Buyer's documents. SELLER MAKES NO REPRESENTATION OR WARRANTY,
EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. No statements herein are to be construed as inducements to infringe any relevant patent. Under no
circumstances shall Seller be liable for incidental, consequential or indirect damages for alleged negligence, breach of warranty,
strict of liability arising in connection with the product(s). Buyer's sole remedy and Seller's sole liability for any claims shall be
Buyer's purchase price. Data and results are based on controlled lab work and must be confirmed by Buyer by testing for its
intended conditions of use. The product(s) has not been tested for, and is therefore not recommended for, uses for which
prolonged contact with mucous membranes, abraded skin, or blood is intended; or for uses for which implantation within the
human body is intended.
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