International Chemical Safety Cards POLYDIMETHYLSILOXANE ICSC: 0318 Dimethyl polysiloxane (C2H6OSi)n ICSC #    0318 CAS #     9016-00-6 RTECS # TQ2690000 October 15, 2001 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, AFFF, foam, carbon dioxide. EXPLOSION EXPOSURE  •INHALATION Ventilation. Fresh air, rest.  •SKIN Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Nausea. Vomiting. Diarrhoea. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0318 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards POLYDIMETHYLSILOXANE ICSC: 0318 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: OILY COLOURLESS LIQUID . PHYSICAL DANGERS: CHEMICAL DANGERS: OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Melting point: -50°C Relative density (water = 1): 0.91-1.0 Solubility in water: none Flash point: >110°C Octanol/water partition coefficient as log Pow: 2.6-4.25 ENVIRONMENTAL DATA N O T E S ADDITIONAL INFORMATION ICSC: 0318 POLYDIMETHYLSILOXANE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.