MATERIAL SAFETY DATA SHEET - MCOE

1 FLEX SEAL MSDSPAGE1 OF10 MATERIAL SAFETY data SHEETP repared to OSHA, CMA, ANSI, and Canadian WHMIS StandardsPART IWhat is the MATERIAL and what do I need to know in an emergency1. PRODUCT IDENTIFICATIONTRADE NAME (AS LABELED):FLEX SEALCHEMICAL NAME/CLASS:Asphalt/Bentonite Water DispersionMANUFACTURER'S NAME:Petrochem Manufacturing, IncADDRESS:5205 Avenida Encinas, Suite KCarlsbad, CA 92008-4366 EMERGENCY PHONE:CHEMTREC: 1-800-424-9300 INTERNATIONAL: 1-703-527-3887 BUSINESS PHONE:(760) 603-0961 BUSINESS FAX:(760) 603-0962 DATE OF PREPARATION:March 14, 20062.

2 COMPOSITION and INFORMATION ON INGREDIENTSThe following table provides information on the exposure limits of the components that comprise this LIMITS INAIRACGIH-TLVOSHA-PELNIOSHOTHERTWASTELT WASTELTWASTELIDLHCHEMICAL NAMECAS #% v/vmg/m3mg/m3mg/m3mg/m3mg/m3mg/m3mg/m3mg /m3 Petroleum Asphalt(exposure limits are forAsphalt fume)8052-42 (inhalablefraction asbenzene-solubleaerosol)NENENENE5, ceiling(15 min)NEDFG MAK: Dangerof cutaneousabsorption (vapor& aerosol)Carcinogen: IARC-3, MAK-2, NIOSH-Ca, TLV-A4 Crumb ,ceiling(15 min)NEHydrogen Sulfide7783-06 7NE28 ceiling;70 10 minpeak, onceper 8-hrshiftNE15 ceiling(10 min)140 DFG MAK:TWA = 14 STEL = 2 MAK 15min, averagevalueCarcinogen: EPA-IOther Proprietary component with noexposure and other components.

3 Each of theother components is present in less than 1percentconcentration( for potential carcinogens,reproductivetoxins,respirato rytractsensitizers, and mutagens).BalanceNone of the other components contribute significant, additional, hazards at the concentrations present in this pertinent hazard information has been provided in this document, per the requirements ofthe Federal OccupationalSafety and Health Administration Standard (29 CFR ), State equivalent Standards and CanadianWorkplace Hazardous Materials Identification System Standards (CPR 4).

4 NE = Not EstablishedNIC = Notice of Intended Section 16 for Definitions of Terms : All Canadian WHMIS required information is included. It is located in appropriate sections based on the ANSI HAZARD IDENTIFICATIONEMERGENCY OVERVIEW:This product is a brown to black liquid or semisolid with a mild petroleum primaryhealth hazards associated withthis product under normal and recommended circumstances of use are from mechanicalirritation of exposed product is not flammable in emulsion form. Thermal decomposition of this product canproduce black, sooty smoke, irritating vapors, and toxic gases ( , carbon oxides, nitrogen oxides, sulfur oxides).

5 Thisproduct is not normally reactive. This product may be harmful to contaminatedterrestrial and aquatic life. Emergencyresponders must wear proper personal protective equipment of for the situation to which they are OF OVEREXPOSURE BY ROUTE OF EXPOSURE:The chief health hazard associated with end-useapplications of this product would be irritation of contaminated skin and eyes. Potential health effects, via route of exposure,are as follows:INHALATION: Under normal circumstances of use, this product does not produce significant mist or spraysgenerated by the liquid portion of this product are inhaled, they may cause dizziness, drowsiness, blurred vision, and othercentral nervous system SEAL MSDSPAGE2 OF103.

6 HAZARD IDENTIFICATION (Continued)INHALATION (continued):Fumes of Asphalt are suspected to becarcinogenic if exposure is chronic; however, this product is not typicallytransported or used at elevated temperatures [>100 C (212 F)] and so thishazard is not expected to be WITH SKIN or EYES: Under normal circumstances of use, thisproduct does not product significant eye contact may causechemical and mechanical irritation or permanent contact withthis product may also cause mechanical irritation.

7 Repeated or prolongedsk in contact may cause dermatitis (dry, red skin).Some components of thisproduct may be skin sensitizers; subsequent exposure to very small amountsmay cause allergic reaction in susceptible ABSORPTION: Some components of this product may be absorbedthrough the on the duration and the area of skinabsorption, symptoms may include dizziness, drowsiness, blurred vision,and other central nervous system :Though not anticipated to be a significant routeofoccupational exposure, ingestion of this product can irritate the mouth,throat, and other tissues of the gastrointestinal system.

8 Symptoms of suchoverexposure can include nausea, vomiting, and diarrhea. Although notesting has been done on this product, it is possible that ingestion maycause permanent : Injection is not anticipated to be a significant route ofoccupational exposure. Accidental injection (via puncture by a contaminatedobject) can cause pain and irritation in addition to the EFFECTS OR RISKS FROM EXPOSURE: An Explanation :At the temperature at which this product is transported, no acutehealth hazard beyond mechanical irritation of exposed tissue is may cause nausea, vomiting, anddiarrhea.

9 Eye contact will cause irritation from both chemical exposure and mechanical irritation, with the possibility ofpermanent damage. Severe exposure via ingestion or injection exposure to this product may cause :Asphalt fumes are possibly carcinogenic to humans; however, this product is not typically transported or usedat elevated temperatures and so this hazard is not expected to be components of this product may beskin sensitizers; subsequent exposure to very small amounts may cause allergic reaction in susceptible individuals.

10 SeeSection 11 (Toxicological Information) for further ORGANS:ACUTE: Skin, eyes (mechanical irritation). CHRONIC: IIWhat should I do if a hazardous situation occurs?4. FIRST-AID MEASURESV ictims of chemical exposure must be taken for medical attention. Rescuers should be taken for medical attention if first-aid treatment is recommended for overexposures. Take copy of label and MSDS to physician or health professional EXPOSURE: If this product enters the eyes,immediatelyopen victim'seyes while under gently running water.