MATERIAL SAFETY DATA SHEET
CASTALDO?br>
LIQUACAST ?PART A
Manufacturer: Gesswein
Address: 255 Hancock Ave.
Bridgeport CT 06605
Telephone: 203-366-5400
Fax: 203-366-3953
Date Prepared: November 16, 1999
Emergency ChemTrec: 1-800-255-3924
SECTION 1 ?MATERIAL IDENTIFICATION AND INFORMATION
INGREDIENT/CAS # EXPOSURE LIMITS
Chemical Name: Polymeric MDI and Plasticizer ACGIH TLV 0.005 ppm TWA
Hazardous Ingredients/OSHA: Methylene bis(phenylisocyanate) OSHA PEL 0.02 ppm (Ceiling)
(MDI), CAS# 101-68-8,
and other isomers.
Other ingredients are a trade secret mixture of substances for which no applicable exposure limits
have been established by OSHA or ACGIH.
SECTION 2 - PHYSICAL / CHEMICAL CHARACTERISTICS
Appearance and odor: Brown clear liquid, mild odor.
Specific Gravity, at 25?C, g/cc: Approximately 1.1.
Solubility in Water: Insoluble, forms CO2
Boiling Point (?F): No data.
Vapor Pressure: Negligible.
SECTION 3 ?FIRE AND EXPLOSION HAZARD DATA
Flash Point: 400?F, (estimated).
Extinguishing Media: Carbon dioxide, dry chemical, foams, or water fog or fine
spray.
Hazardous Combustion Products : May include MDI vapor, nitrogen oxides, isocyanates,
carbon monoxide, carbon dioxide, and unidentified toxic and irritating compounds.
Other Information: Firefighters wear SCBA and full-body protective suit. Solid stream of water
into hot product may cause violent steam generation or eruption. Dense smoke is formed when
product burns. Use water to cool hot containers.
SECTION 4 ?REACTIVITY HAZARD DATA
Conditions to Avoid: Moisture and temperatures <75 癋 and >95癋 to ensure product integrity.
Incompatibility with other materials: Avoid contact with water, acids, bases, alcohols, strong
oxidizers, and some metals (e.g., aluminum, brass, copper). Reaction with water generates
carbon dioxide, and results in heat and pressure buildup in closed systems.
Hazardous Decomposition Products: Possibly isocyanate vapor, carbon monoxide, nitrogen
oxides, and traces of hydrogen cyanide.
SECTION 5 ?HEALTH HAZARD DATA
Primary Route(s) of Entry: Inhalation, skin or eye absorption.
Eye: May cause moderate eye irritation.
Skin: Exposure may cause skin irritation, staining, or sensitization.
Ingestion: Single oral dose toxicity is low. May cause nausea, vomiting, and diarrhea.
Inhalation: At room temp., vapors are minimal. Vapors or aerosols (e.g., generated during
heating or spraying) may cause respiratory irritation. May cause respiratory sensitization in
susceptible individuals. For individuals sensitized to MDI, exposure may result in allergic
respiratory reactions (e.g., coughing, difficulty breathing).
Chronic Effects: Repeated overexposure to MDI may cause respiratory and dermal
sensitization. Long-term overexposure to MDI may result in impaired lung function.
Carcinogenicity: Rats exposed to MDI aerosol for their lifetime developed lung tumors.
Emergency and First Aid Procedures:
Eye Contact: Flush with water immediately for 15 minutes. Seek medical attention.
Skin Contact: Wash with soap and plenty of water (preferably warm water).
Inhalation: Remove to fresh air. Treat symptomatically. Seek medical attention.
Ingestion: Seek medical attention. Do not induce vomiting unless so directed by a
physician.
SECTION 6 ?PRECAUTIONS FOR SAFE HANDLING AND USE
Handling: Avoid breathing vapor. Use in well ventilated area. Avoid contact with eyes, skin and
clothing. Do not eat, drink or smoke in work area. Wash hands after handling. See Section 8.
Storage: Store indoors at temperatures >75癋 and <105癋. Store in original, unopened
container. Protect from atmospheric moisture and water, since MDI reacts with water to form CO2
leading to potentially dangerous pressure build up in sealed containers.
SECTION 7 ?SPILL AND DISPOSAL MEASURES
Clear non-emergency personnel from the area. Extinguish sources of ignition. Put on protective
equipment (see Section 8). Contain spill to minimize environmental contamination. Absorb spilled
material with an inert absorbent. Collect and containerize material. Do not seal containers of spill
residue since carbon dioxide is generated upon contact with moisture and dangerous pressure
buildup can occur.
Neutralize contaminated floor area with a mixture of water (90%), ammonia (3-8%) and detergent
(2%). Clean floor before material reacts with moisture in the air and forms a difficult to remove
rubber.
SECTION 8 - PROTECTION AND CONTROL MEASURES
Engineering Controls: Provide general and/or local exhaust to maintain airborne concentrations
below exposure limits (see Section 1 for exposure limits).
Personal Protective Equipment: Chemical splash goggles, protective clothing, and impervious
rubber gloves are recommended.
Respiratory Protection: In the absence of good ventilation, use a supplied-air respirator, or, if
unavailable, a respirator equipped with organic vapor cartridges. In emergencies, use SCBA.
SECTION 9 - REGULATORY AND OTHER INFORMATION
Sara Section 313: This product contains the following Section 313 ingredient:
Ingredient CAS # Weight %
Polymeric diphenylmethane diisocyanate (includes MDI) 9016-87-9 <35
RCRA: Upon disposal, this product is not a RCRA hazardous waste (per 50 CFR 261). Upon
exposure to moisture,
product forms an inert, non-hazardous solid.
CA Proposition 65: Not applicable.
DOT: Not a hazardous material for shipping in U.S., per 49 CFR Part 171.
EMERGENCY SHIPPING INFORMATION: Call Chem-Tel: 800-969-5399
Disclaimer: The information contained herein is considered accurate; however, Manufacturer
makes no warranty regarding the accuracy of the information. The user must determine the
suitability of the product for the intended use and accepts all risk and liability associated with that
use.
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