Section 1 - Chemical Product and Company Identification

Product/Chemical Name: PMC121-50 Part B           Date Prepared: 3/26/98

General Use: Polyurethane Elastomer

From: Eager Plastics, Inc., 3350 W. 48th Place Chicago, IL 60632 Phone (773)927-3484, FAX (773)650-5853

Emergency Contact: 773-807-4314

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Section 2 - Composition / Information on Ingredients





CAS Number


Exposure Limits


Weight Percent



Polyol (Non-Hazardous)


None Established

None Established


New Jersey Trade Secret #221290880-5051P


None Established

None Established






None Established

None Established



Phenylmercuric neodecanoate


0.01 mg/m3

0.01 mg/m3


Section 3 - Hazards Identification







Potential Health Effects

Primary Entry Routes: Dermal

Target Organs: pancreas, liver, thyroid and eyes.

Acute Effects

Inhalation: Vapors, which are not significant unless heated or sprayed can cause irritation to respiratory tract.

Eye: May cause irritation, redness, tearing, and blur vision. Prolonged vapor contact may cause conjunctivitis.

Skin: Contact will cause irritation, reddening, and swelling.

Ingestion: May have corrosive effects on the linings of the mouth and stomach: symptoms can include sore throat, abdominal pain, nausea, vomiting and diarrhea.

Carcinogenicity: IARC, NTP, and OSHA do not list any components of this product as a carcinogen.

Medical Conditions Aggravated by Long-Term Exposure: Pre-existing skin disorders.

Chronic Effects of Overexposure:

A two-year feeding study in rats showed diethyltoluenediamine caused effects in the pancreas, liver, thyroid and eyes. Also, an increase in the number of tumors in the liver and thyroid of male rats and in the liver and possibly mammary gland of female rats was found.

This product contains an organo-mercury catalyst below the reportable level required by OSHA 1910.1200; however, due to the chronic toxicity of organo-mercury compounds careful handling of this product is required.

Section 4 - First Aid Measures

Inhalation: Remove source(s) of contamination and move victim to fresh air.

Eye Contact: Flush eyes with plenty of water. If irritation persists, seek medical attention.

Skin Contact: In case of skin contact, wash thoroughly with soap and water; remove contaminated clothing and launder before reuse; seek medical attention if rash develops.

Ingestion: Do not induce vomiting unless instructed by a physician. Contact physician immediately

After first aid, get appropriate in-plant, paramedic, or community medical support.

Section 5 - Fire-Fighting Measures


Flash Point: >270 F (132C)

Flash Point Method: COC

Flammability Classification: Non-Flammable

Extinguishing Media: Water Fog, Dry Chemical, and Carbon Dioxide Foam

Unusual Fire or Explosion Hazards: None

Fire-Fighting Instructions: Fire fighters should wear self-contained breathing apparatus. Do not release runoff from fire control methods to sewers or waterways.

Fire-Fighting Equipment: Because fire may produce toxic thermal decomposition products, wear a self-contained breathing apparatus (SCBA) with a full facepiece operated in pressure-demand or positive-pressure mode.

Section 6 - Accidental Release Measures

Spill /Leak Procedures: Dike and contain spill; absorb or scrape up excess into suitable container for disposal. Stop or reduce discharge if it can be done safely.

Regulatory Requirements: Follow applicable OSHA regulations (29 CFR 1910.120).


Section 7 - Handling and Storage

Handling Precautions: Minimize breathing of vapors and avoid prolonged or repeated contact with skin. Wear proper protective equipment. If ventilation is not sufficient, wear proper respiratory equipment. Use good general housekeeping procedures.

Storage Requirements: Store in cool dry, well-ventilated area.


Section 8 - Exposure Controls / Personal Protection

Engineering Controls:

Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs (Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at its source.

Administrative Controls:

Respiratory Protection: Seek professional advice prior to respirator selection and use. Follow OSHA respirator regulations (29 CFR 1910.134) and, if necessary, wear an MSHA/NIOSH-approved respirator. Select respirator based on its suitability to provide adequate worker protection for given working conditions, level of airborne contamination, and presence of sufficient oxygen. For emergency or nonroutine operations (cleaning spills, reactor vessels, or storage tanks), wear an SCBA. Warning! Air-purifying respirators do not protect workers in oxygen-deficient atmospheres. If respirators are used, OSHA requires a written respiratory protection program that includes at least: medical certification, training, fit testing, periodic environmental monitoring, maintenance, inspection, cleaning, and convenient, sanitary storage areas.

Protective Clothing/Equipment: Wear chemically protective gloves, boots, and aprons to prevent prolonged or repeated skin contact. Wear protective eyeglasses or chemical safety goggles, per OSHA eye- and face-protection regulations (29 CFR 1910.133). Contact lenses are not eye protective devices. Appropriate eye protection must be worn instead of, or in conjunction with contact lenses.

Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before eating, drinking, smoking, using the toilet, or applying cosmetics


Section 9 - Physical and Chemical Properties

Physical State: Liquid

Appearance : Amber to reddish brown liquid

Odor : Sharp pungent odor

Vapor Pressure: None (Polymeric Resin)

Vapor Density (Air=1): >1

Specific Gravity (H2O=1, at 4 C): 0.95


Water Solubility: Negligible:

Boiling Point: None (Polymeric Resin)

% Volatile: Nil

Freezing/Melting Point: None Determined

Viscosity: 3 poise

Evaporation Rate: None (Polymeric Resin)

Section 10 - Stability and Reactivity

Stability: PMC-121-50 Part B is stable at room temperature in closed containers under normal storage and handling conditions.

Polymerization: Hazardous polymerization can not occur.

Chemical Incompatibilities: Strong acids and oxidizers.

Conditions to Avoid: Avoid contamination with water and other materials that react with amines.

Thermal Decomposition Products: Oxides of nitrogen, carbon monoxide and carbon dioxide

Section 11- Toxicological Information

Acute Inhalation Effects:

Human, inhalation, TCL: Not Determined

Acute Oral Effects: A two year feeding study in rats showed diethyltoluenediamine caused effects in the pancreas, liver, thyroid and eyes. Also, an increase in the number of tumors in the liver and thyroid of male rats and in the liver and possibly mammary gland of female rats was found.

Reproductive Toxicity: None established

Mutagenicity: None Established

Teratogenicity: None Established

Sensitization: None Established

Section 12 - Ecological Information

None Established


Section 13 - Disposal Considerations

Disposal: This material contains a hazardous constituent as identified in RCRA, Title 40 CFR 261, Appendix VIII and must be disposed of in accordance with applicable Federal, state, and local regulations.

Section 14 - Transport Information





Not Classified

Not Classified

Not Classified



Section 15 - Regulatory Information

EPA Regulations:


RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)


CERCLA Hazardous Substance (40 CFR 302.4) listed per RCRA, Sec. 3001; CWA, Sec. 311 (b)(4); CWA, Sec. 307(a), CAA, Sec. 112

Components That Require Reporting RQ % of Reportable Component

Mercury (as part of catalyst) 1 lb. 0.03 Max


SARA Toxic Chemical (40 CFR 372.65): None

This product contains the following chemicals that are subject to release reporting requirements under section 313 of

SARA Title III: None

TSCA Inventory Status (40 CFR 710): All components of this product are listed on the TSCA inventory.


SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed, Threshold Planning Quantity (TPQ)


State Regulations:


California Proposition 65: This product does not intentionally contain any chemicals, which have been identified by the state of California to cause cancer, birth defects or other reproductive harm.


Massachusetts Right To Know, Substance List: None

Pennsylvania Right To Know, Substance List: None

16 - Other Information

Prepared By: Dominick J. Finocchio

Title: Technical Director

Disclaimer: The information contained in this MSDS is considered accurate as of the version date. However, no warranty is expressed or implied regarding the accuracy of the data. Since the use of this product is not within the control of Smooth-On Inc., it is the users obligation to determine the suitability of the product for its intended application and assumes all risk and liability for its safe use.