ANSI Material Safety Data Sheet
Hercules Chemical Company, Inc. 
HERCULES PLASTIC SEAL MSDS # 373
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HERCULES PLASTIC SEAL MSDS # 373 
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3. COMPOSITION/INFORMATION ON INGREDIENTS 
Component CAS No. Amount 
ISOCYANATE FUNCTIONAL URETHANE RESIN  112898-48-
3 
15 – 40% 
4. FIRST AID MEASURES 
Ingestion: Induce vomiting, product may be toxic. Contact poison control or get emergency medical care. 
Skin: Wash with soap and water. Get medical attention if irritation or symptoms from Section 2 develop. 
Inhalation: No emergency medical treatment needed. 
Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes and get medical 
attention if irritation persists. 
Note to physician: Treatment is symptomatic and supportive. 
5. FIRE FIGHTING MEASURES 
Flashpoint: >140°F 
Method: N/A 
Ignition temperature: N/A 
Flammable limits in air - lower (%): N/A 
Flammable limits in air - upper (%): N/A 
Sensitivity to mechanical impact: None 
Sensitivity to static discharge: Not expected. 
Extinguishing media: Alcohol Foam, CO2, Dry Chemical, Water fog. 
Special fire fighting procedures: Firefighters must wear NIOSH/MSHA approved positive pressure self-
contained breathing apparatus with full face mask and full protective clothing. 
6. ACCIDENTAL RELEASE MEASURES 
Not a hazardous waste. Dispose of in normal manner in accordance to all applicable state, federal and local 
regulations. 
7. HANDLING AND STORAGE 
No special precautions needed. Wash thoroughly after handling, especially before eating drinking or smoking. 
Wash contaminated clothes before use. Do not re-use empty containers. 
Storage: Store at room temperature in a cool, dry, well ventilated area. 
8. EXPOSURE CONTROLS/PERSONAL PROTECTION 
Engineering controls: N/A 
Respiratory protection: N/A 
Protective gloves:  Impervious gloves. 
Eye and face protection: Safety glasses or goggles. 
Other protective equipment: Wear suitable protective clothing. 
Exposure Guidelines: 
N/A 




