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NOTICEThe Material Safety Data Sheet information for the two componentsystem, FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystem is contained in two separate datasheets; one for theisocyanate and one for the polyol. When printing or filing, please besure to include both documents. ( )*Trademark of The Dow Chemical Company1 of 26 pages

Material Safety Data SheetThe Dow Chemical CompanyPRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08The Dow Chemical Company encourages and expects you to read and understand the entire(M)SDS, as there is important information throughout the document. We expect you to follow theprecautions identified in this document unless your use conditions would necessitate otherappropriate methods or actions.1.Product and Company IdentificationProduct Name: POLYURETHANE FOAM SYSTEM - ISOCYANATECOMPANY IDENTIFICATIONThe Dow Chemical Company2030 Willard H. Dow CenterMidland, MI 48674USACustomer Information Number:800-258-2436EMERGENCY TELEPHONE NUMBER24-Hour Emergency Contact:Local Emergency Contact:989-636-4400989-636-44002.Hazards IdentificationEmergency OverviewColor: BrownPhysical State: LiquidOdor: MustyHazards of product:WARNING! May cause eye irritation. May cause skin irritation. May cause allergicskin reaction. May cause allergic respiratory reaction. Vapor reduces oxygenavailable for breathing. May cause central nervous system effects. Keep upwind ofspill. May cause anesthetic effects. May cause respiratory tract irritation. May causelung injury. May react with water. Stay out of low areas. Material reacts slowly withwater, releasing carbon dioxide which can cause pressure buildup and rupture ofclosed containers. Elevated temperatures accelerate this reaction. Toxic fumes maybe released in fire situations. Contents under pressure. Avoid temperatures above 41 C (106 F). Avoid temperatures below 20 C (68 F). ( )*Trademark of The Dow Chemical Company2 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08OSHA Hazard Communication StandardThis product is a "Hazardous Chemical" as defined by the OSHA Hazard CommunicationStandard, 29 CFR 1910.1200.Potential Health EffectsEye Contact: May cause moderate eye irritation. May cause slight temporary corneal injury.Skin Contact: Prolonged contact may cause skin irritation with local redness. May stain skin.Skin Absorption: Prolonged skin contact is unlikely to result in absorption of harmful amounts.Skin Sensitization: Skin contact may cause an allergic skin reaction. Animal studies haveshown that skin contact with isocyanates may play a role in respiratory sensitization.Inhalation: In confined or poorly ventilated areas, vapor can easily accumulate and can causeunconsciousness and death due to displacement of oxygen. Excessive exposure may causeirritation to upper respiratory tract (nose and throat) and lungs. May cause pulmonary edema(fluid in the lungs.) Effects may be delayed. Decreased lung function has been associated withoverexposure to isocyanates. Excessive exposure may increase sensitivity to epinephrine andincrease myocardial irritability (irregular heartbeats). May cause central nervous system effects.Symptoms of excessive exposure may be anesthetic or narcotic effects; dizziness anddrowsiness may be observed.Respiratory Sensitization: May cause allergic respiratory response. MDI concentrations belowthe exposure guidelines may cause allergic respiratory reactions in individuals already sensitized.Asthma-like symptoms may includecoughing, difficult breathing and a feeling of tightness in the chest. Occasionally, breathingdifficulties may be life threatening.Ingestion: Low toxicity if swallowed. Small amounts swallowed incidentally as a result of normalhandling operations are not likely to cause injury; however, swallowing larger amounts may causeinjury. Observations in animals include: Gastrointestinal irritation.Effects of Repeated Exposure: Tissue injury in the upper respiratory tract and lungs has beenobserved in laboratory animals after repeated excessive exposures to MDI/polymeric MDIaerosols.Cancer Information: Lung tumors have been observed in laboratory animals exposed torespirable aerosol droplets of MDI/Polymeric MDI (6 mg/m3) for their lifetime. Tumors occurredconcurrently with respiratory irritation and lung injury. Current exposure guidelines are expectedto protect against these effects reported for MDI.Birth Defects/Developmental Effects: In laboratory animals, MDI/polymeric MDI did not causebirth defects; other fetal effects occurred only at high doses which were toxic to the mother.Based on information for component(s): 1,1,1,2-Tetrafluoroethane. Has been toxic to the fetus inlab animals at doses toxic to the mother.3.Composition InformationComponentDiphenylmethane Diisocyanate, isomers and homologues4,4' -Methylenediphenyl diisocyanate1,1,1,2-TetrafluoroethaneCAS #9016-87-9101-68-8811-97-2Note: CAS 101-68-8 is an MDI isomer that is part of CAS 9016-87-9. ( )*Trademark of The Dow Chemical Company3 of 26 pagesAmount 60.0 - 100.0 % 30.0 - 60.0 % 5.0 - 10.0 %

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIsocyanate SDS pages 2-14Polyol SDS pages 15- 284.Issue date: 4/14/08Effective date: 4/14/08First-aid measuresEye Contact: Immediately flush eyes with water; remove contact lenses, if present, after the first5 minutes, then continue flushing eyes for at least 15 minutes. Obtain medical attention withoutdelay, preferably from an ophthalmologist.Skin Contact: Remove material from skin immediately by washing with soap and plenty of water.Remove contaminated clothing and shoes while washing. Seek medical attention if irritationpersists. Wash clothing before reuse. An MDI skin decontamination study demonstrated thatcleaning very soon after exposure is important, and that a polyglycol-based skin cleanser or cornoil may be more effective than soap and water. Discard items which cannot be decontaminated,including leather articles such as shoes, belts and watchbands.Inhalation: Move person to fresh air. If not breathing, give artificial respiration; if by mouth tomouth use rescuer protection (pocket mask, etc). If breathing is difficult, oxygen should beadministered by qualified personnel. Call a physician or transport to a medical facility.Ingestion: If swallowed, seek medical attention. Do not induce vomiting unless directed to do soby medical personnel.Notes to Physician: Maintain adequate ventilation and oxygenation of the patient. May causerespiratory sensitization or asthma-like symptoms. Bronchodilators, expectorants andantitussives may be of help. Exposure may increase "myocardial irritability". Do not administersympathomimetic drugs such as epinephrine unless absolutely necessary. Respiratorysymptoms, including pulmonary edema, may be delayed. Persons receiving significant exposureshould be observed 24-48 hours for signs of respiratory distress. If you are sensitized todiisocyanates, consult your physician regarding working with other respiratory irritants orsensitizers. No specific antidote. Treatment of exposure should be directed at the control ofsymptoms and the clinical condition of the patient.Medical Conditions Aggravated by Exposure: Excessive exposure may aggravate preexistingasthma and other respiratory disorders (e.g. emphysema, bronchitis, reactive airways dysfunctionsyndrome).5.Fire Fighting MeasuresExtinguishing Media: Water fog or fine spray. Dry chemical fire extinguishers. Carbon dioxidefire extinguishers. Foam. Alcohol resistant foams (ATC type) are preferred. General purposesynthetic foams (including AFFF) or protein foams may function, but will be less effective.Fire Fighting Procedures: Keep people away. Isolate fire and deny unnecessary entry. Stayupwind. Keep out of low areas where gases (fumes) can accumulate. Water is notrecommended, but may be applied in large quantities as a fine spray when other extinguishingagents are not available. Fight fire from protected location or safe distance. Consider the use ofunmanned hose holders or monitor nozzles. Immediately withdraw all personnel from the area incase of rising sound from venting safety device or discoloration of the container. Do not usedirect water stream. May spread fire. Move container from fire area if this is possible withouthazard. Use water spray to cool fire-exposed containers and fire-affected zone until fire is out.Special Protective Equipment for Firefighters: Wear positive-pressure self-containedbreathing apparatus (SCBA) and protective fire fighting clothing (includes fire fighting helmet, ( )*Trademark of The Dow Chemical Company4 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIsocyanate SDS pages 2-14Polyol SDS pages 15- 28Issue date: 4/14/08Effective date: 4/14/08coat, trousers, boots, and gloves). Avoid contact with this material during fire fighting operations.If contact is likely, change to full chemical resistant fire fighting clothing with self-containedbreathing apparatus. If this is not available, wear full chemical resistant clothing with selfcontained breathing apparatus and fight fire from a remote location. For protective equipment inpost-fire or non-fire clean-up situations, refer to the relevant sections.Unusual Fire and Explosion Hazards: Product reacts with water. Reaction may produce heatand/or gases. This reaction may be violent. Container may rupture from gas generation in a firesituation. Vaporizes quickly at room temperature. Vapors are heavier than air and may travel along distance and accumulate in low lying areas. Dense smoke is emitted when burned withoutsufficient oxygen.Hazardous Combustion Products: During a fire, smoke may contain the original material inaddition to combustion products of varying composition which may be toxic and/or irritating.Combustion products may include and are not limited to: Nitrogen oxides. Isocyanates.Hydrogen fluoride. Hydrogen cyanide. Carbon monoxide. Carbon dioxide.6.Accidental Release MeasuresSteps to be Taken if Material is Released or Spilled: Contain spilled material if possible.Absorb with materials such as: Sawdust. Vermiculite. Dirt. Sand. Clay. Cob grit. Milsorb .Do NOT use absorbent materials such as: Cement powder (Note: may generate heat). Collectin suitable and properly labeled open containers. Do not place in sealed containers. Suitablecontainers include: Metal drums. Plastic drums. Polylined fiber pacs. Wash the spill site withlarge quantities of water. Attempt to neutralize by adding suitable decontaminant solution:Formulation 1: sodium carbonate 5 - 10%; liquid detergent 0.2 - 2%; water to make up to 100%,OR Formulation 2: concentrated ammonia solution 3 - 8%; liquid detergent 0.2 - 2%; water tomake up to 100%. If ammonia is used, use good ventilation to prevent vapor exposure. ContactDow for clean-up assistance. See Section 13, Disposal Considerations, for additionalinformation.Personal Precautions: Isolate area. Keep personnel out of low areas. Keep upwind of spill.Ventilate area of leak or spill. Keep unnecessary and unprotected personnel from entering thearea. If available, use foam to smother or suppress. Refer to Section 7, Handling, for additionalprecautionary measures. Use appropriate safety equipment. For additional information, refer toSection 8, Exposure Controls and Personal Protection. See Section 10 for more specificinformation.Environmental Precautions: Prevent from entering into soil, ditches, sewers, waterways and/orgroundwater. See Section 12, Ecological Information.7.Handling and StorageHandlingGeneral Handling: Avoid breathing vapor. Avoid contact with eyes, skin, and clothing. Avoidprolonged or repeated contact with skin. Use with adequate ventilation. Wash thoroughly afterhandling. Keep container tightly closed. Contents under pressure. Do not puncture or incineratecontainer. Containers, even those that have been emptied, can contain vapors. Do not cut, drill,grind, weld, or perform similar operations on or near empty containers. Do not enter confined ( )*Trademark of The Dow Chemical Company5 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08spaces unless adequately ventilated. See Section 8, EXPOSURE CONTROLS AND PERSONALPROTECTION.StorageStore under cover in a dry, clean, cool, well ventilated place away from sunlight. Do not storeproduct contaminated with water to prevent potential hazardous reaction.Storage Period:Storage temperature:6 Months15 - 27 C8.Exposure Controls / Personal ProtectionExposure LimitsComponent 4,4' -Methylenediphenyldiisocyanate 1,1,1,2-Tetrafluoroethane ListTypeValueACGIHTWA0.005 ppmOSHA TableZ-1Ceiling0.2 mg/m3 0.02 ppmWEELTWA4,240 mg/m3 1,000 ppmPersonal ProtectionEye/Face Protection: Use chemical goggles. Eye wash fountain should be located in immediatework area.Skin Protection: Use protective clothing chemically resistant to this material. Selection ofspecific items such as face shield, boots, apron, or full body suit will depend on the task. Removecontaminated clothing immediately, wash skin area with soap and water, and launder clothingbefore reuse or dispose of properly. Items which cannot be decontaminated, such as shoes,belts and watchbands, should be removed and disposed of properly.Hand protection: Use gloves chemically resistant to this material. Examples ofpreferred glove barrier materials include: Butyl rubber. Polyethylene. Chlorinatedpolyethylene. Ethyl vinyl alcohol laminate ("EVAL"). Examples of acceptable glovebarrier materials include: Viton. Neoprene. Natural rubber ("latex"). Polyvinyl chloride("PVC" or "vinyl"). Nitrile/butadiene rubber ("nitrile" or "NBR"). NOTICE: The selection ofa specific glove for a particular application and duration of use in a workplace should alsotake into account all relevant workplace factors such as, but not limited to: Otherchemicals which may be handled, physical requirements (cut/puncture protection,dexterity, thermal protection), potential body reactions to glove materials, as well as theinstructions/specifications provided by the glove supplier.Respiratory Protection: Atmospheric levels should be maintained below the exposure guideline.When atmospheric levels may exceed the exposure guideline, use an approved air-purifyingrespirator equipped with an organic vapor sorbent and a particle filter. For situations where theatmospheric levels may exceed the level for which an air-purifying respirator is effective, use apositive-pressure air-supplying respirator (air line or self-contained breathing apparatus). Foremergency response or for situations where the atmospheric level is unknown, use an approved ( )*Trademark of The Dow Chemical Company6 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08positive-pressure self-contained breathing apparatus or positive-pressure air line with auxiliaryself-contained air supply. The following should be effective types of air-purifying respirators:Organic vapor cartridge with a particulate pre-filter.Ingestion: Use good personal hygiene. Do not consume or store food in the work area. Washhands before smoking or eating.Engineering ControlsVentilation: Use only with adequate ventilation. Local exhaust ventilation may be necessary forsome operations. Provide general and/or local exhaust ventilation to control airborne levelsbelow the exposure guidelines. Exhaust systems should be designed to move the air away fromthe source of vapor/aerosol generation and people working at this point. The odor and irritancy ofthis material are inadequate to warn of excessive exposure.9.Physical and Chemical PropertiesPhysical StateColorOdorFlash Point - Closed CupFlammable Limits In AirAutoignition TemperatureVapor PressureBoiling Point (760 mmHg)Vapor Density (air 1)Specific Gravity (H2O 1)Freezing PointMelting PointSolubility in Water (byweight)pHKinematic Viscosity10.LiquidBrownMustyNot applicable, GasLower: No test data availableUpper:No test data available225 psi @ 54 C Container is under pressure.No test data available .No test data available1.02 - 1.04 25 C/25 C ASTM D891No test data availableNo test data availableinsoluble, reacts, evolution of CO2Not applicableNo test data availableStability and ReactivityStability/InstabilityStable under recommended storage conditions. See Storage, Section 7.Conditions to Avoid: Avoid temperatures above 41 C (106 F). Avoid temperatures below 20 C (68 F). Elevated temperatures can cause container to vent and/or rupture. Exposure toelevated temperatures can cause product to decompose. Generation of gas duringdecomposition can cause pressure in closed systems. Pressure build-up can be rapid. Avoidmoisture. Material reacts slowly with water, releasing carbon dioxide which can cause pressurebuildup and rupture of closed containers. Elevated temperatures accelerate this reaction. ( )*Trademark of The Dow Chemical Company7 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIsocyanate SDS pages 2-14Polyol SDS pages 15- 28Issue date: 4/14/08Effective date: 4/14/08Incompatible Materials: Avoid contact with: Acids. Alcohols. Amines. Ammonia. Bases.Metal compounds. Strong oxidizers. Diisocyanates react with many materials and the rate ofreaction increases with temperature as well as increased contact; these reactions can becomeviolent. Contact is increased by stirring or if the other material mixes with the diisocyanate.Diisocyanates are not soluble in water and sink to the bottom, but react slowly at the interface.The reaction forms carbon dioxide gas and a layer of solid polyurea. Reaction with water willgenerate carbon dioxide and heat. Avoid unintended contact with polyols. The reaction ofpolyols and isocyanates generate heat.Hazardous PolymerizationCan occur.Thermal DecompositionDecomposition products depend upon temperature, air supply and the presence of othermaterials. Toxic gases are released during decomposition.11.Toxicological InformationAcute ToxicityIngestionSingle dose oral LD50 has not been determined. Estimated LD50, Rat 10,000 mg/kgSkin AbsorptionThe dermal LD50 has not been determined. Estimated LD50, Rabbit 2,000 mg/kgInhalationThe LC50 has not been determined. Estimated LC50, Aerosol, Rat 490 mg/m3SensitizationSkinSkin contact may cause an allergic skin reaction. Animal studies have shown that skin contactwith isocyanates may play a role in respiratory sensitization.RespiratoryMay cause allergic respiratory response. MDI concentrations below the exposure guidelines maycause allergic respiratory reactions in individuals already sensitized. Asthma-like symptoms mayinclude coughing, difficult breathing and a feeling of tightness in the chest. Occasionally,breathing difficulties may be life threatening.Repeated Dose ToxicityTissue injury in the upper respiratory tract and lungs has been observed in laboratory animalsafter repeated excessive exposures to MDI/polymeric MDI aerosols.Chronic Toxicity and CarcinogenicityLung tumors have been observed in laboratory animals exposed to respirable aerosol droplets ofMDI/Polymeric MDI (6 mg/m3) for their lifetime. Tumors occurred concurrently with respiratoryirritation and lung injury. Current exposure guidelines are expected to protect against theseeffects reported for MDI.Developmental ToxicityIn laboratory animals, MDI/polymeric MDI did not cause birth defects; other fetal effects occurredonly at high doses which were toxic to the mother. Based on information for component(s): ( )*Trademark of The Dow Chemical Company8 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIsocyanate SDS pages 2-14Polyol SDS pages 15- 28Issue date: 4/14/08Effective date: 4/14/081,1,1,2-Tetrafluoroethane. Has been toxic to the fetus in lab animals at doses toxic to the mother.Did not cause birth defects in laboratory animals.Genetic ToxicologyGenetic toxicity data on MDI are inconclusive. MDI was weakly positive in some in vitro studies;other in vitro studies were negative. Animal mutagenicity studies were predominantly negative.12.Ecological InformationCHEMICAL FATEData for Component: Diphenylmethane Diisocyanate, isomers and homologuesMovement & PartitioningIn the aquatic and terrestrial environment, movement is expected to be limited by itsreaction with water forming predominantly insoluble polyureas.Persistence and DegradabilityIn the aquatic and terrestrial environment, material reacts with water formingpredominantly insoluble polyureas which appear to be stable. In the atmosphericenvironment, material is expected to have a short tropospheric half-life, based oncalculations and by analogy with related diisocyanates.Data for Component: 4,4' -Methylenediphenyl diisocyanateMovement & PartitioningIn the aquatic and terrestrial environment, movement is expected to be limited by itsreaction with water forming predominantly insoluble polyureas.Persistence and DegradabilityIn the aquatic and terrestrial environment, material reacts with water formingpredominantly insoluble polyureas which appear to be stable. In the atmosphericenvironment, material is expected to have a short tropospheric half-life, based oncalculations and by analogy with related diisocyanates.Data for Component: 1,1,1,2-TetrafluoroethaneMovement & PartitioningBioconcentration potential is low (BCF less than 100 or log Pow less than 3). Potentialfor mobility in soil is high (Koc between 50 and 150).Henry's Law Constant (H): 5.00E-2 atm*m3/mole; 25 C MeasuredPartition coefficient, n-octanol/water (log Pow): 1.68 EstimatedPartition coefficient, soil organic carbon/water (Koc): 97 EstimatedPersistence and Degradability1,1,1,2-Tetrafluoroethane (HFC-134a) has a stratospheric ozone depletion potential(ODP) of zero, relative to CFC 12 (ODP 1). Material is expected to biodegrade only veryslowly (in the environment). Fails to pass OECD/EEC tests for ready biodegradability.Indirect Photodegradation with OH Radicals ( )*Trademark of The Dow Chemical Company9 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08Rate ConstantAtmospheric Half-life6.20E-15 cm3/s1,700 dOECD Biodegradation Tests:BiodegradationExposure Time4%28 dTheoretical Oxygen Demand: 0.47 mg/mgMethodEstimatedMethodOECD 301D TestECOTOXICITYData for Component: Diphenylmethane Diisocyanate, isomers and homologuesThe measured ecotoxicity is that of the hydrolyzed product, generally under conditionsmaximizing production of soluble species. Material is practically non-toxic to aquaticorganisms on an acute basis (LC50/EC50 100 mg/L in the most sensitive speciestested).Toxicity to Soil Dwelling OrganismsLC50, Earthworm Eisenia foetida, adult, 14 d: 1,000 mg/kgData for Component: 4,4' -Methylenediphenyl diisocyanateThe measured ecotoxicity is that of the hydrolyzed product, generally under conditionsmaximizing production of soluble species. Material is practically non-toxic to aquaticorganisms on an acute basis (LC50/EC50 100 mg/L in the most sensitive speciestested).Toxicity to Soil Dwelling OrganismsLC50, Earthworm Eisenia foetida, adult, 14 d: 1,000 mg/kgData for Component: 1,1,1,2-TetrafluoroethaneMaterial is practically non-toxic to aquatic organisms on an acute basis (LC50/EC50 100mg/L in the most sensitive species tested).Fish Acute & Prolonged ToxicityLC50, rainbow trout (Oncorhynchus mykiss), static, 96 h: 450 mg/lAquatic Invertebrate Acute ToxicityEC50, water flea Daphnia magna, 48 h, immobilization: 980 mg/l13.Disposal ConsiderationsDO NOT DUMP INTO ANY SEWERS, ON THE GROUND, OR INTO ANY BODY OF WATER.All disposal practices must be in compliance with all Federal, State/Provincial and local laws andregulations. Regulations may vary in different locations. Waste characterizations andcompliance with applicable laws are the responsibility solely of the waste generator. DOW HASNO CONTROL OVER THE MANAGEMENT PRACTICES OR MANUFACTURING PROCESSESOF PARTIES HANDLING OR USING THIS MATERIAL. THE INFORMATION PRESENTEDHERE PERTAINS ONLY TO THE PRODUCT AS SHIPPED IN ITS INTENDED CONDITION ASDESCRIBED IN MSDS SECTION: Composition Information. FOR UNUSED &UNCONTAMINATED PRODUCT, the preferred options include sending to a licensed, permitted:Incinerator or other thermal destruction device. As a service to its customers, Dow can provide ( )*Trademark of The Dow Chemical Company10 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08names of information resources to help identify waste management companies and other facilitieswhich recycle, reprocess or manage chemicals or plastics, and that manage used drums.Telephone Dow's Customer Information Group at 1-800-258-2436 or 1-989-832-1556 (U.S.), or1-800-331-6451 (Canada) for further details.14.Transport InformationFOR AEROSOL CANS:DOT Non-BulkProper Shipping Name: AEROSOLSTechnical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1950LIMITED QUANTIYLABEL: Non-flammable gasIMDGProper Shipping Name: AEROSOLSTechnical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1950EMS Number: F-D,S-ULIMITED QUANTITYLABEL: Non-flammable gasICAO/IATAProper Shipping Name: AEROSOLSTechnical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1950LIMITED QUANTITYLABEL: non-flammable gasFOR CYLINDERS:DOT Non-BulkProper Shipping Name: COMPRESSED GASES, N.O.S.Technical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1956IMDGProper Shipping Name: COMPRESSED GASES, N.O.S.Technical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1956EMS Number: F-C,S-VMarine Pollutant: No ( )*Trademark of The Dow Chemical Company11 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Effective date: 4/14/08ICAO/IATAProper Shipping Name: COMPRESSED GASES, N.O.S.Technical Name: Fluorinated Hydrocarbons, NitrogenHazard Class: 2.2 ID Number: UN1956 Cargo Packing Instruction: 200Passenger Packing Instruction: 200Additional InformationNot available in bulk quantitiesThis information is not intended to convey all specific regulatory or operationalrequirements/information relating to this product. Additional transportation system informationcan be obtained through an authorized sales or customer service representative. It is theresponsibility of the transporting organization to follow all applicable laws, regulations and rulesrelating to the transportation of the material.15.Regulatory InformationOSHA Hazard Communication StandardThis product is a "Hazardous Chemical" as defined by the OSHA Hazard CommunicationStandard, 29 CFR 1910.1200.Superfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning andCommunity Right-to-Know Act of 1986) Sections 311 and 312Immediate (Acute) Health HazardYesDelayed (Chronic) Health HazardYesFire HazardNoReactive HazardNoSudden Release of Pressure HazardYesSuperfund Amendments and Reauthorization Act of 1986 Title III (Emergency Planning andCommunity Right-to-Know Act of 1986) Section 313This product contains the following substances which are subject to the reporting requirements ofSection 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and whichare listed in 40 CFR 372.ComponentCAS #Amount4,4' -Methylenediphenyl diisocyanate101-68-8 30.0 - 60.0 %Diphenylmethane Diisocyanate, isomers and9016-87-9 60.0 - 100.0 %homologuesPennsylvania (Worker and Community Right-To-Know Act): Pennsylvania HazardousSubstances List and/or Pennsylvania Environmental Hazardous Substance List:The following product components are cited in the Pennsylvania Hazardous Substance Listand/or the Pennsylvania Environmental Substance List, and are present at levels which requirereporting. ( )*Trademark of The Dow Chemical Company12 of 26 pages

PRODUCT NAME:FROTH-PAK(TM) 12.0 HFC Polyurethane Spray FoamSystemIssue date: 4/14/08Isocyanate SDS pages 2-14Polyol SDS pages 15- 28Component4,4' -Methylenediphenyl diisocyanateEffective date: 4/14/08CAS #101-68-8Amount 30.0 - 60.0 %Pennsylvania (Worker and Community Right-To-Know Act): Pennsylvania SpecialHazardous Substances List:To the best of our knowledge, this product does not contain chemicals at levels which requirereporting under this statute.California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986)This product contains no listed substances known to the State of California to cause cancer, birthdefects or other reproductive harm, at levels which would require a warning under the statute.US. Toxic Substances Control ActAll components of this product are on the TSCA Inventory or are exempt from TSCA Inventoryrequirements under 40 CFR 720.30CEPA - Domestic Substances List (DSL)All substances contained in this product are listed on the Canadian Domestic Substances List(DSL) or are not required to be listed.16.Other InformationRecommended Uses and RestrictionsComponent(s) for the manufacture of urethane polymers.RevisionIdentification Number: 64144 / 1001 / Issue Date 03/07/2008 / Version: 2.0Most recent revision(s) are noted by the bold, double bars in left-hand margin throughout thisdocument.LegendN/AW/WOELSTELTWAACGIHDOW IHGWEELHAZ DESAction LevelNot availableWeight/WeightOccupational Exposure LimitShort Term Exposure LimitTime Weighted AverageAmerican

Product Name: POLYURETHANE FOAM SYSTEM - ISOCYANATE COMPANY IDENTIFICATION The Dow Chemical Company 2030 Willard H. Dow Center Midland, MI 48674 USA C ustomer Information Number: 8 00-258-2436 EMERGENCY TELEPHONE NUMBER 24-Hour Emergency Contact: 989-63