11. Toxicological information Acute toxicity LD50/LC50 values that are relevant for classification Specification : LD-50 Routes of entry : oral

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1 Material Safety Data Sheet according to 91/155/EC Manufacturer/Supplier: Schill + Seilacher Struktol AG D-2211 Hamburg Ident.number : 01058/01068/01085/01094 Product name : STRUKTOL PERMALEASE Print date : Revision : Identification of substance, preparation and company Product name: STRUKTOL PERMALEASE 10 DRUM STRUKTOL PERMALEASE 10 CAN STRUKTOL PERMALEASE 20 DRUM STRUKTOL PERMALEASE 20 CAN Manufacturer/Supplier Schill + Seilacher Struktol AG Street/P.O.Box Moorfleeter Straße 28 Country code/postal code/town/city D-2211 Hamburg Telephone / Telefax Telephone : * / (0)40 / Telefax : * / (0)40 / Emergency information Telephone : * / (0)40 / * = Germany 02. Composition/information on ingredients Chemical characterization Silicon polymers, dissolved in aliphatic hydrocarbons. Hazardous components Concentration : < % CAS number : Symbol : F Xi R : (White spirit, Turpentine sustitute) Concentration : % CAS number : Symbol : Xn R : Hazards identification Particular information pertaining specific risk for human and environment Flammable Harmful: may cause lung damage if swallowed Repeated exposure may cause skin dryness or cracking. 04. First-aid measures General Immediately remove all contaminated clothing. After inhalation Take the victim into the fresh air and keep warm. Call a physician. After skin contact Wash away with soap and water and rinse. After eye contact Flush with plenty of water (10-15 min.). Call a physician. After ingestion Do not induce vomiting. Call a doctor.

2 05. Fire-fighting measures Suitable extinguishing media Alcohol resistant foam, CO2, powders, water spray Unsuitable extinguishing media Waterjet Special risk posed by the substance or by the actual preparation, its combustion products or gases discharged In case of fire the following substance(s) may be released: Carbon monoxide Carbon dioxide Flammable gases / vapours. Silica fumes Special protective equipment In case of fire do not breathe fumes. When extinguishing fires, use breathing apparatus with an independent source of air. Additional information Cool endangered containers with water in case of fire. 06. Accidental release measures Personal precautions Remove ignition sources. Provide for sufficient ventilation. Refer to protective measures listed in sections 7 and 8. Environmental precautions Do not discharge into drains/surface waters/groundwater. Do not discharge into the subsoil/soil. Methods for cleaning up/collecting Take up with absorbent material (e.g. general-purpose binder). Dispose of collected material in accordance with local regulations. 07. Handling and storage Information for safe handling Only use in locations with adequate suction ventilation. Information about protection against explosions and fires Keep away from ignition sources - No smoking. Take precautionary measures against static discharges. Requirements to be met by storerooms and containers Make sure that ventilation is adequate. Further information about storage conditions Always keep in containers of same material as the original one. See also instructions on the label. Avoid heating and direct sunlight. Keep containers dry and cool. 08. Exposure controls and personal protection Additional information about engineering measures Provide adequate ventilation. Where reasonably practicable this shoud be achieved by the use of local exhaust ventilation and good general extraction. If these are not sufficient to maintain concentrations of emission below the OEL (=Occupational Exposure Limit), suitable respiratory protection must be worn. Components with critical values that require monitoring at the workplace (exposure limits) CAS: Specification : MAK Value : 200,0000 ppm / 500,0000 mg/m Short-term term exposure limit: 4 Pregnancy group : Y Valid as per (mm/yy) : 10 / 2000 Specification : BAT Value : 50,0000 mg/l

3 Analysis material : Blood Parameter : Acetone Time of taking the trial : End of exposition, respectively end of shift Valid as per (mm/yy) : 07 / 99 Specification : BAT Value : 50,0000 mg/l Analysis material : Urine Parameter : Acetone Time of taking the trial : End of exposition, respectively end of shift Valid as per (mm/yy) : 07 / References to the thresholds The declared values are quoted from the TRGS 900 (state 10/2000) and the TRGS 90 (state 7/99). Personal protective equipment General protective and hygiene measures The usual precautionary measures for the handling of chemicals have to be observed. Do not eat or drink during work - no smoking. Respiratory protection Do not inhale the vapour. Provide for good ventilation. Take breathing protection measures(see also instruct.to avoid accidents) Respiratory filter (gas) : A Hand protection Solvent-resistent protective gloves must be worn. Eye protection Use safety glasses. 09. Physical and chemical properties Image Form : liquid Colour : colourless Odour : like aromatics Relevant safety data Change in condition Boiling point: ( 101 mbar ) Ca 82 C DIN Flash point : Ca 0 C DIN/ISO 2592 Ignition temperature : no data available Vapour pressure : no data available Density : ( 20 C ) 0,77-0,79 g/cm DIN Solubility in water : insoluble Viscosity : no data available Solvent-separation test no data available 10. Stability and reactivity Conditions to avoid Overheating Thermal decomposition Materials to avoid Reaction with oxidizing agents possible. Hazardous decomposition products Like all organic substances product may form flammable and toxic fumes when overheated (e.g. in case of fire). Hazardous decomposition products: Carbon monoxide Carbon dioxide Silica fumes Flammable gases / vapours 11. Toxicological information Acute toxicity LD50/LC50 values that are relevant for classification

4 Value / dosage : > 5000 mg/kg LD50/LC50 values (components) that are relevant for CAS: Value / dosage : > 5000 mg/kg Routes of entry : dermal Test species : rabbit Value / dosage : > 000 mg/kg CAS: Value / dosage : 5840 mg/kg OCTAMETHYLTETRASILOXANE CAS: Value / dosage : > 5000 mg/kg Further information: There are no data available on the preparation itself. According to experience no harmful effects are to be expected under proper handling conditions. Experience on practice: Prolonged inhalation of vapours in high concentrations may lead to headache, giddiness and nausea. Skin contact: frequent and prolonged skin contact may cause irritation and skin inflammation. Additional toxicological information The product has not been tested. The information is derived from the properties of the individual components. 12. Ecological information Do not empty into waters or drains. Do not discharge into subsoil/soil. 1. Disposal considerations Product Recommendation In accordance with local official regulations pass on to an appropriate incinerating plant or depository or recycling. During incineration, smoke containing silica is formed which may plug exhaust filters in incineration plants. 14. Transport information Land transport ADR/RID and GGVS/GGVE GGVS/GGVE : Class Item 1 Letter c RID/ADR : Class Item 1 Letter c Kemlercode : 0 ISOPROPANOL (ISOPROPYLALKOHOL) Approved for conveyance by post(y/n): National J Maritime transport IMDG/GGVSea IMDG-Code :. IMDG-Page : 45

5 UN-number : 199 MARPOL : - MFAG-Table : 11 EmS number : -07 Technical name FLAMMABLE LIQUIDS, N.O.S. group III Air transport ICAO-TI and IATA-DGR ICAO/IATA Class UN-number : 199 Technical name FLAMMABLE LIQUID, N.O.S. group III 15. Regulatory information according to EEC directives Danger symbol and danger designation Xn Harmful Hazard-determining determining components of labelling R-phrases 10 Flammable 65 Harmful: may cause lung damage if swallowed 66 Repeated exposure may cause skin dryness or cracking. S-phrases 7 Keep container tightly closed 16 Keep away from sources of ignition - No smoking 2 Do not breathe gas/fumes/vapour/spray 24 Avoid contact with skin 62 If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label. Additional information The product is classified and labelled in accordance with EC directives/ German regulations on dangerous substances. 16. Other information These data are based on our present knowledge. However, they shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.