Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006



1 Product and company identification
1.1 Identification of the substance or preparation:
Commercial product name: CATALYST T 124 BLUE E
Use of substance / preparation: Industrial.
Catalysts
1.2 Company/undertaking identification:
Manufacturer/distributor: Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397

Customer information: Customer Care Center:
Tel (517) 264-8240, Fax (517) 264-8740
Hours of operation:
Monday - Friday, 8 am to 5 pm (eastern standard time)
Corporate website www.wackersilicones.com

Emergency telephone no. (24h): (517) 264-8500
Transportation emergency: (800) 424-9300 (CHEMTREC, USA)
(703) 527-3887 (CHEMTREC, international)
(613) 996-6666 (CANUTEC, Canada)
This MSDS was prepared by the Regulatory Affairs and Product Safety Department (RAPS) of Wacker
Chemical Corporation.

2 Composition/information on ingredients
2.1 Chemical characterization (preparation):
Chemical characteristics
Polydimethylsiloxane + pigment + catalyst

2.2 Information on ingredients:
Type CAS No. Substance Content [wt. %] Note
Lower Upper
INHA 78-10-4 Ethyl silicate 10.0 30.0
INHA 25168-22-3 Organotin catalyst 10.0 30.0
NEBE 71-23-8 n-Propanol varies varies
NEBE 64-17-5 Ethanol varies varies
Type: HYD - by-product upon hydrolysis, INHA - ingredient, NEBE - by-product, MONO - residual
monomer, VERU - impurity, VUL - by-product upon vulcanization. *** Note: C1 - IARC carcinogen,
C2 - NTP carcinogen, C3 - OSHA carcinogen, NH - non-hazardous, R - reproductive toxin.
Substances listed in the Subsections "HAPS" and "California Proposition 65 Carcinogens /
Reproductive Toxins" that are not listed in Section 2 are only present at quantities below 0.1%
for California Proposition 65 listed toxins or below 1% for non-carcinogenic HAPS or they are
inextricably bound in the product.

3 Hazards identification
3.1 Hazards classifications
HMIS? rating (product as packaged):
Health: 2* Fire: 2 Reactivity: 1 PPE: H




Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


(HMIS codes are based on contact with the product as packaged and any hydrolysis by-products,
if present.) Hazardous Materials Identification System and HMIS are registered trademarks of
the National Paint and Coatings Association. Note: Respiratory protection is only recommended
in the event that ventilation or engineering controls are unable to maintain exposures below
recommended levels; or in the event of a spill or other emergency response situation.
Canadian WHMIS Classification: B3, D2B
3.2 Emergency overview and potential hazards
Signal Word:
WARNING
Physical Hazards:
OSHA combustible, DOT flammable liquid and vapor.
Acute health effects
Route of entry or possible contact:
eyes , skin , inhalation (aerosol) .
Eye contact:
Causes eye irritation.
Skin contact:
Causes skin irritation.
Inhalation:
In case of aerosol formation: Causes respiratory tract irritation. Inhalation may cause central
nervous system effects. May cause lung damage if inhaled as an aerosol.
Ingestion:
No known ingestion hazards.
Additional information on acute health effects:
Ingestion is not expected during industrial use.
3.3 Further information:
Chronic health effects:
May cause chronic dermatitis.
Medical conditions which may be aggravated by exposure:
none known
Target organs affected:
Liver and Kidneys. Lungs .
Signs and Symptoms of Exposure:
Refer to Acute Health Effects, listed above.
Carcinogens/Reproductive toxins:
This material does not contain any reproductive toxins at or above OSHA or WHMIS reportable
levels. There are no carcinogenic ingredients present at or over 0.1% in this material.
See Section 11 for Toxicological Information, if any.

4 First-aid measures
4.1 General information:
Get medical attention if irritation occurs or if breathing becomes difficult. Remove
contaminated clothing and shoes.
4.2 After inhalation:
If inhaled remove to fresh air. If not breathing, give artificial respiration. If breathing is
difficult give oxygen.
4.3 After contact with the skin:
For skin contact, immediately wipe away excess material. Use a waterless hand cleaner to remove
as much of the remaining material as possible. Wash with soap and water.
4.4 After contact with the eyes:
If contact with eyes, immediately hold eyelids apart and flush with plenty of water for at
least 15 min.
4.5 After swallowing:
For ingestion, if conscious, give several glasses of water but do not induce vomiting. If
vomiting does occur, give additional fluids.
4.6 Advice for the physician:
Treat symptomatically.



Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


5 Fire-fighting measures
5.1 Flammable properties: Method
Flash point..........................: 56 ??C (132 ??F) (ASTM D3278, DIN
55680, ISO 3679)
Boiling point / boiling range........: 203 ??C (397 ??F)
Lower explosion limit (LEL)..........: not determined
Upper explosion limit (UEL)..........: not determined
Ignition temperature ................: not determined
5.2 Fire and explosion hazards:
OSHA combustible, DOT flammable liquid and vapor. Vapors are heavier than air and may travel
along the ground, be moved by ventilation systems, settle in pits or low areas, and be ignited
by ignition sources distant from the handling point. The material is lighter than water,
burning spilled material will float on top of any water released from hose or sprinkler systems
spreading the fire beyond the initial fire response area. Never use welding or cutting torch on
or near any container of this material, even if empty, because an explosion could occur.
Hydrolyzes on contact with moisture releasing ignitable vapors.
5.3 Recommended extinguishing media:
AFFF alcohol compatible foam. Carbon dioxide. Dry chemical. Water may be used to cool tanks and
structures adjacent to the fire.
5.4 Unsuitable extinguishing media:
Water may be ineffective in controling fires of this material. Do not use water to fight these
fires.
5.5 Special exposure hazards arising from the substance or preparation itself, combustion products,
resulting gases:
Hazardous decomposition products: carbon dioxide , carbon monoxide , formaldehyde , silicon
dioxide . tin dioxide , nitrogen oxides , Various hydrocarbon fragments
5.6 Fire fighting procedures:
Full turn-out gear and Self Contained Breathing Apparatus (SCBA) should be worn when fighting
large fires.

6 Accidental release measures
6.1 Precautions:
Secure the area. Obtain appropriate PPE, supplies, and equipment prior to attempting any
response.
HAZWOPER PPE Level: C
6.2 Containment:
Use loose absorbant material or prefabricated socks to dike around small quantities of spilled
material (incidental spills). Cover openings to underground drains and sewers. If safe to do
so, stop the leak at its source.
Spills of material which could reach surface waters must be reported to the United States Coast
Guard National Response Center's toll free phone number (800) 424-8802.
6.3 Methods for cleaning up:
Silicone fluids are slippery; spills are a safety hazard. Apply sand or other inert granular
material to improve traction. Liquids may be recovered using suction devices or pumps. If
flammable, only air driven or properly rated electrical equipment should be used. Use absorbant
materials to pick up residual liquids.




Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


7 Handling and storage
7.1 Handling
Precautions for safe handling:
Keep away from heat, sparks and flame. Avoid contact with eyes, skin and clothing. Avoid
breathing dust/vapor/mist/gas/aerosol. Use with adequate ventilation. Keep container closed
when not in use.
Precautions against fire and explosion:
Do not weld, cut, or grind on empty containers. Keep away from sources of ignition and do not
smoke. Ignitable vapors may be released during processing or curing.
7.2 Storage
Conditions for storage rooms and vessels:
Store in a dry and sheltered place.
Advice for storage of incompatible materials:
No restriction.
Further information for storage:
Store in a cool, temperature regulated location.

8 Exposure controls and personal protection
8.1 Engineering controls
Ventilation:
Use with adequate ventilation.
Local exhaust:
To control flammable/combustible vapors: Local exhaust ventilation which meets the requirements
of ANSI Z9.2 is recommended to control airborne contaminants at the point of use.
8.2 Associate substances with specific control parameters such as limit values
Maximum airborne concentrations at the workplace:
mg/m3
CAS No. Material Type ppm Dust fract.
71-23-8 1-Propanol OSHA PEL 500.0 200.0
64-17-5 Ethanol OSHA PEL 1,900.0 1,000.0
71-23-8 1-Propanol ACGIH TWA 200.0
64-17-5 Ethanol ACGIH TWA 1,000.0
Re 1-Propanol (CAS-no. 71-23-8): STEL is 250 ppm, skin notation (ACGIH).
Re Ethanol (CAS no. 64-17-5): carcinogenicity: A4 (ACGIH).
8.3 Personal protection equipment (PPE)
Respiratory protection:
If spraying or other operations which generate an aerosol mist are conducted, respiratory
protection for exposed personnel is recommended. A NIOSH approved air purifying respirator
equipped with universal multi-contaminant, multi-gas/vapor cartridges and at least P-99
solid/aerosol particulate filters is recommended if overexposure to dusts, mists, or vapors
could occur.
Hand protection:
Any liquid-tight rubber or vinyl gloves.
Eye protection:
Safety glasses with side shields or chemical safety goggles. Additional eye and face
protection, splash-proof goggles, hood, full-faced respirator, or face shield is recommended if
splashing could occur.
Other protective clothing or equipment:
Additional skin protection, such as SARANEX coated Tyvek apron, over-sleeves, lab coat,
coveralls, or protective suit should be worn if splashing could occur. Provide eye bath and
safety shower.
8.4 General hygiene and protection measures:
Follow standard industrial hygiene practices when using this material. When handling do not
eat, drink, smoke or apply cosmetics. Wash thoroughly after handling.




Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


9 Physical and chemical properties
9.1 Appearance
Physical state / form................: liquid
Colour...............................: blue
Odour................................: slight
9.2 Safety parameters Method
Melting point / melting range........: not applicable
Boiling point / boiling range........: 203 ??C (397 ??F)
Flash point..........................: 56 ??C (132 ??F) (ASTM D3278,
DIN 55680, ISO
3679)
Ignition temperature ................: not determined
Lower explosion limit (LEL)..........: not determined
Upper explosion limit (UEL)..........: not determined
Vapour pressure......................: not determined
Density..............................: 0.96 g/cm3
Water solubility / miscibility.......: insoluble
pH-Value.............................: not applicable
Viscosity (dynamic)..................: 100 mPa.s
9.3 Further information
Percent Volatiles ...................: 27.7 %

10 Stability and reactivity
10.0 General information:
Stable under normal conditions of use.
10.1 Conditions to avoid:
Although this product is not expected to react with commonly used materials of construction and
process equipment, it is advised that any rubber or plastic items such as hoses and gaskets be
tested prior to large scale processing to ensure there is no degradation of performance or
durability.
10.2 Materials to avoid:
Oxidizing materials (oxygen, oxidizers, peroxides, etc.). , strong acids , alkalis .
10.3 Hazardous decomposition products:
Measurements have shown the formation of small amounts of formaldehyde at temperatures above
about 150 ??C (302 ??F) through oxidation.
10.4 Further information:
Hazardous polymerization cannot occur.

11 Toxicological information
11.1 General information:
Toxicological testing has not been conducted with this material.

12 Ecological information
12.1 Information on elimination (persistence and degradability)
not determined .
12.2 Behaviour in environmental compartments
not determined .
12.3 Ecotoxicological effects:
not determined .
12.4 Additional information
General information:
No ecological data exists for this material.




Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


13 Disposal considerations
13.0 RCRA Waste Classification:
D001 (Ignitable)
This classification applies only to the material as it was originally produced.
13.1 Product disposal
Recommendation:
Material that cannot be used or chemically reprocessed should be disposed of at an approved
facility in accordance with any applicable governmental regulations. State and local
regulations may be more stringent than Federal regulations.
13.2 Packaging diposal
Recommendation:
Uncleaned containers should not be reused to hold another material due to the potential for
reaction between residual product and incompatible materials. Uncleaned packaging should be
treated with the same precautions as the material. After emptying contaminated containers may
be cleansed and recycled.

14 Transport information
14.1 US DOT & CANADA TDG SURFACE
Valuation....................: Hazardous product
Proper Shipping Name.........: Flammable liquid, n.o.s.
Technical name..............: (contains tetraethylsilicate)
Class........................: 3
UN no. ......................: 1993
Packaging Group..............: III
Label........................: **TL:flammable liquid/3
14.2 Transport by sea IMDG-Code
Valuation....................: Hazardous product
Class........................: 3
Packaging Group..............: III
UN no. ......................: 1993
Proper Shipping Name.........: Flammable liquid, n.o.s.
Technical name..............: (contains tetraethylsilicate)
14.3 Air transport ICAO-TI/IATA-DG Valuation....................: Hazardous product
Class........................: 3
UN no. ......................: 1993
Proper Shipping Name.........: Flammable liquid, n.o.s.
Technical name..............: (contains tetraethylsilicate)
Packaging Group..............: III

15 Regulatory information
15.1 U.S. Federal regulations
TSCA inventory status and TSCA information:
This material or its components are listed on or are in compliance with the requirements of the
TSCA Chemical Substance Inventory.
TSCA 12(b) Export Notification:
This material does not contain any TSCA 12(b) regulated chemicals.
CERCLA Regulated Chemicals:
This material does not contain any CERCLA regulated chemicals.
SARA 302 EHS Chemicals:
This material does not contain any SARA extremely hazardous substances.
SARA 311/312 Hazard Class:
Fire hazard. Immediate (acute) health hazard. Delayed (chronic) health hazard.



Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


SARA 313 Chemicals:
This material does not contain any SARA 313 chemicals above de minimus levels.
HAPS (Hazardous Air Pollutants):
This material does not contain any hazardous air pollutants.

15.2 U.S. State regulations
California Proposition 65 Carcinogens:
This material does not contain any chemicals known to the state of California to cause cancer.
California Proposition 65 Reproductive Toxins:
This material does not contain any chemicals known to the state of California to cause
reproductive effects.
Massachusetts Substance List:
78-10-4 Ethyl silicate
New Jersey Right-to-Know Hazardous Substance List:
78-10-4 Ethyl silicate
Pennsylvania Right-to-Know Hazardous Substance List:
78-10-4 Ethyl silicate

15.3 Canadian regulations
This product has been classified in accordance with the Hazard criteria of the CPR and the MSDS
contains all the information required by the CPR.
WHMIS Hazard Classes:
B3, D2B
DSL Status:
This material or its components are listed on the Canadian Domestic Substances List.
Canadian Ingredient Disclosure List:
78-10-4 Ethyl silicate

15.4 Other international regulations
Details of international registration status
Listed on the following inventories:
TSCA - DSL - Canada
AICS - Australia
IECSC - China
ECL - Korea
EINECS - Europe
PICCS - Philippines

16 Other information
16.1 Additional information:
This Material Safety Data Sheet (MSDS) meets the requirements of the Federal OSHA Hazard
Communication Standard (29 CFR 1910.1200). This product has been classified according to the
hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all of the
information required by the CPR. This information relates to the specific material designated
and may not be valid for such material used in combination with any other materials or in any
process. Such information is to the best of our knowledge and belief accurate and reliable as
of the date compiled. However, no representation, warranty or guarantee expressed or implied,
is made as to its accuracy, reliability or completeness. It is the user's responsibility to
satisfy himself as to the suitability and completeness of such information for his own
particular use. We do not accept liability for any loss or damage that may occur from the use
of this information. Nothing herein shall be construed as a recommendation for uses which
infringe valid patents or as extending a license under valid patents. This MSDS provides
selected regulatory information on this product, including its components. This is not intended
to include all regulations. It is the responsibility of the user to know and comply with all

Material Safety Data Sheet
Material: 60055987 CATALYST T 124 BLUE E

Version: 1.0 (US) Date of print: 09/04/2006 Date of last alteration: 08/22/2006


applicable rules, regulations and laws relating to the product being used.

Vertical lines in the left-hand margin indicate changes compared with the previous version.
16.2 Glossary of Terms:
ACGIH - American Conference of Governmental ppm - Parts per Million
Industrial Hygienists SARA - Superfund Amendments and Reauthorization Act
DOT - Department of Transportation STEL - Short Term Exposure Limit
hPa - Hectopascals TSCA - Toxic Substances Control Act
mPa*s - Milli Pascal-Seconds TWA - Time Weighted Average
OSHA - Occupational Safety and Health Administration WHMIS - Canadian Workplace Hazardous Materials
PEL - Permissible Exposure Limit Identification System
Flash point determination methods Common name
ASTM D56 Tagliabue (Tag) closed cup
ASTM D92, DIN 51376, ISO 2592 Cleveland open cup
ASTM D93, DIN 51758, ISO 2719 Pensky-Martens closed cup
ASTM D3278, DIN 55680, ISO 3679 Setaflash or Rapid closed cup
DIN 51755 Abel-Pensky closed cup
16.3 Conversion table:
Pressure: 1 hPa * 0.75 = 1 mm Hg = 1 Torr; 1 bar = 1000 hPa
Viscosity: 1 mPa*s = 1 Centipoise (Cp)






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