SAFETY DATA SHEET
SDS 0546

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            Section 1 -- PRODUCT AND COMPANY IDENTIFICATION                      
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                                                           HMIS CODES
PRODUCT NAME                                            Health            2
   RectorSeal Hi-Temp 100% RTV Silicone Sealant         Flammability      1
                                                        Reactivity        1
PRODUCT CODES                                           PPI               B
   57500
CHEMICAL FAMILY:
   Organic/Inorganic
USE
   RTV Silicone Sealant 
MANUFACTURER'S NAME                          EMERGENCY TELEPHONE NO.
   The RectorSeal Corporation                 Chemtrec 24 Hours
   2601 Spenwick Drive                        (800)424-9300 USA
   Houston, Texas  77055  USA                 (703)527-3887 International
   
DATE OF VALIDATION                           TECHNICAL SERVICE TELEPHONE NO. 
   January 23, 2015                           (800)231-3345 or (713)263-8001
DATE OF PREPARATION                         
   March 6, 2013 
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           Section 2 -- HAZARDS IDENTIFICATION
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EMERGENCY OVERVIEW
OSHA Hazards
Irritant
GHS Classification
Acute toxicity, Oral (Category 5)
Skin irritation (Category 2)
Eye irritation (Category 2A)
Specific target organ toxicity - single exposure (Category 3)
GHS Label elements, including precautionary statements
Pictogram: Irritant
Signal Word: Warning
Hazard statement(s)
H303 - May be harmful if swallowed.
H315 - Causes skin irritation.
H319 - Causes serious eye irritation.
H335 - May cause respiratory irritation.
Precautionary statement(s)
P260 - Do not breathe dust/ fume/ gas/ mist/ vapors/ spray.
P264 - Wash hands thoroughly after handling.
P280 - Wear protective gloves/ protective clothing.
P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor/ physician.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue rinsing.
P307 + P311 - IF exposed: Call a POISON CENTER or doctor/ physician.
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SUMMARY OF ACUTE HAZARDS
    Vapor evolved during product curing may be irritating to nose and throat. 
Eye contact may cause intense Irritation and injury.  May cause skin 
irritation.	
ROUTE OF EXPOSURE, SIGNS AND SYMPTOMS
INHALATION
   Irritation to respiratory system from vapor evolved during product curing.
EYE CONTACT
   Contact may cause intense irritation and injury.
SKIN CONTACT
   May cause skin irritation.
INGESTION
   May cause gastrointestinal distress.
SUMMARY OF CHRONIC HAZARDS
   Repeated contact may cause dermatitis, eye irritation, or bronchitis.
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE
  Individuals with pre-existing or chronic diseases of the eyes, skin, 
respiratory system, cardiovascular system, gastrointestinal system, liver, or
kidneys may have increased susceptibility to excessive exposure.
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           Section 3 -- COMPOSITION/INFORMATION ON INGREDIENTS
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INGREDIENT: Methyltriacetoxysilane
PERCENTAGE BY WEIGHT: 2
CAS NUMBER: 4253-34-3
EC#  : 224-221-9
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INGREDIENT: Ethyltriacetoxysilane
PERCENTAGE BY WEIGHT: 2
CAS NUMBER: 17689-77-9
EC#  : N/D
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INGREDIENT: Silica
PERCENTAGE BY WEIGHT: 10
CAS NUMBER: 7631-86-9
EC#  : 262-373-8
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           Section 4 -- FIRST AID MEASURES
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   If INHALED:     If overcome by exposure, remove victim to fresh air 
                   immediately.  Give oxygen or artificial respiration as 
                   needed.  Obtain emergency medical attention.  Prompt action 
                   is essential.
   If on SKIN:     Wash with soap and water.  Remove contaminated clothing. 
                   If irritation occurs, seek medical attention.
   If in EYES:     Immediately flush with large amounts of water for at least 
                   15 minutes.  Get prompt medical attention.
   If SWALLOWED:   If swallowed, call a physician immediately.  Only induce 
                   vomiting at the instruction of a physician.  Never give 
                   anything by mouth to an unconscious person.
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           Section 5 -- FIRE FIGHTING MEASURES
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EXTINGUSING MEDIA
   Foam, dry chemical, carbon dioxide or water fog.
SPECIAL FIRE FIGHTING PROCEDURES:  Wear self-contained breathing apparatus 
   (SCBA) and other protective clothing.  Hazardous decomposition products 
   possible (see Section 10).
UNUSUAL FIRE AND EXPLOSION HAZARDS:  None
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           Section 6 -- ACCIDENTAL RELEASE MEASURES
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STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED:  Scrape up spills 
To prevent footing hazard.  Avoid flushing into sewers, drains, waterways and
soil.  Wear protective clothing during clean up.
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           Section 7 -- HANDLING AND STORAGE
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PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING:  Store in cool place.  Keep 
container closed and upright when not in use. 
OTHER PRECAUTIONS:  Provide adequate ventilation during use to keep ambient 
air acetic vapor concentration below TLV or use respirator protection.
COMMENT:  When heated to temperatures above 302F(150C) in the presence of
air, product can form formaldehyde vapors.  Formaldehyde is a potential
cancer hazard; a known skin and respiratory sensitizer; and an irritant to
the eyes, nose, throat, skin, and digestive system.  Safe handling conditions
may be maintained by keeping vapor concentrations within the OSHA Permissible
exposure limit for formaldehyde.   Avoid prolonged or repeated contact with
skin or clothing.  Empty containers may contain residues; treat as if full
and observe all products precautions.  Do not reuse empty containers.
KEEP OUT OF REACH OF CHILDREN.
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           Section 8 -- EXPOSURE CONTROLS/PERSONAL PROTECTION
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INGREDIENT             UNITS          
Methyltriacetoxysilane  
     ACGIH TLV     10  ppm                    
     OSHA  PEL     10  ppm
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Ethyltriacetoxysilane  
     ACGIH TLV     10  ppm                    
     OSHA  PEL     10  ppm
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Silica 
     ACGIH TLV     10  mg/m3                   
     OSHA  PEL      6  mg/m3 	 
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COMMENT:  TVL for acetoxysilane based on acetic acid formed during curing on
exposure to water, moisture, or humid air.  Observe limits for acetic acid,
formed during curing on exposure to water or humid air.  
OSHA PEL:  TWA 10 ppm.  ACGIH TLV: TWA 10 ppm, STEL 15 ppm. 
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RESPIRATORY PROTECTION (SPECIFY TYPE):  In confined, poorly ventilated areas, 
use NIOSH/MSHA approved air purifying or supplied air respirators until 
vapors from cured product have dissipated.
VENTILATION - LOCAL EXHAUST:  Maintain air flow during application.       
SPECIAL:  N/A
MECHANICAL (GENERAL):  Acceptable.	
OTHER:  N/A
PROTECTIVE GLOVES:  Coveralls recommended.
EYE PROTECTION:  Safety glasses (ANSI Z-87.1 or equivalent)
OTHER PROTECTIVE CLOTHING OR EQUIPMENT:  Coveralls recommended.
WORK/HYGIENIC PRACTICES:  Where use can result in skin contact, wash exposed 
areas thoroughly before eating, drinking, smoking, or leaving work area. 
Launder contaminated clothing before reuse.
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           Section 9 -- PHYSICAL AND CHEMICAL PROPERTIES
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BOILING POINT:                         212 F (100 C) @ 760mm Hg 
SPECIFIC GRAVITY (H20 = 1):            1.04
VAPOR PRESSURE (mm Hg):                < 5mm Hg 
MELTING POINT:                         N/A
VAPOR DENSITY (AIR = 1):               N/A
EVAPORATION RATE (ETHYL ACETATE = 1):  N/A
APPEARANCE/ODOR:                       Paste / Acetic Acid Vinegar Odor     
SOLUBILITY IN WATER:                   Insoluble 
VOLATILE ORGANIC COMPOUNDS(VOC)Content
(Theoretical Percentage By Weight):    32 g/L
FLASH POINT                            None
LOWER EXPLOSION LIMIT                  N/D
UPPER EXPLOSION LIMIT                  N/D
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           Section 10 -- STABILITY AND REACTIVITY 
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STABILITY:  Stable
CONDITIONS TO AVOID:  Exposure to air or moisture until ready to use.
INCOMPATIBILITY (MATERIALS TO AVOID):  Oxidizing material can cause a reaction.
Air or moisture causes curing and acetic acid vapor forms.
HAZARDOUS DECOMPOSITION PRODUCTS:  Silicone dioxide, carbon dioxide, and 
traces on incompletely burned carbon products, including formaldehyde.
HAZARDOUS POLYMERIZATION:  Will not occur.
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           Section 11 -- TOXICOLOGY INFORMATION
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CHRONIC HEALTH HAZARDS
   No ingredient in this product is an IARC, NTP or OSHA listed carcinogen.
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TOXICOLOGY DATA 
Ingredient Name
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   Methyltriacetoxysilane 
                  Oral-Rat LD50:2060 mg/kg 
                  Inhalation-Rat LC50:N/D 
   Ethyltriacetoxysilane 
                  Oral-Rat LD50:N/D 
                  Inhalation-Rat LC50:N/D
   Silica 
                  Oral-Rat LD50:N/D 
                  Inhalation-Rat LC50:N/D   
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           Section 12 -- Ecological Information
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ECOLOGICAL DATA 
Ingredient Name
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  Methyltriacetoxysilane 
                  FOOD CHAIN CONCENTRATION POTENTIAL      N/D
                  WATERFOWL TOXICITY                      N/D
                  BOD                                     N/D
                  AQUATIC TOXICITY                        N/D 
  Ethyltriacetoxysilane 
                  FOOD CHAIN CONCENTRATION POTENTIAL      N/D
                  WATERFOWL TOXICITY                      N/D
                  BOD                                     N/D
                  AQUATIC TOXICITY                        N/D 
  Silica 
                  FOOD CHAIN CONCENTRATION POTENTIAL      N/D
                  WATERFOWL TOXICITY                      N/D
                  BOD                                     N/D
                  AQUATIC TOXICITY                        N/D 
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           Section 13 -- DISPOSAL CONSIDERATIONS
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Waste Classification:  Non-regulated solid waste
Disposal Method:       Approved landfill
Waste from this product is not considered hazardous as defined under the 
  Resource Conservation and Recovery Act (RCRA) 40 CFR 261.  Dispose of in
  accordance with Federal, State, and Local regulation regarding pollution.
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           Section 14 -- TRANSPORTATION INFORMATION
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DOT:              Non-Regulated 
OCEAN (IMDG):     Non-Regulated
AIR (IATA):       Non-Regulated
WHMIS (CANADA):   Non-Regulated
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           Section 15 -- REGULATORY INFORMATION
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REGULATORY DATA
Ingredient Name
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  Methyltriacetoxysilane 
                  SARA 313          No
                  TSCA Inventory    Yes
                  CERCLA RQ         N/A
                  RCRA Code         N/A
  Ethyltriacetoxysilane 
                  SARA 313          Yes
                  TSCA Inventory    Yes
                  CERCLA RQ         1000 lbs.
                  RCRA Code         N/A 
  Silica 
                  SARA 313          Yes
                  TSCA Inventory    Yes
                  CERCLA RQ          100 lbs.
                  RCRA Code         N/A 
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           Section 16 -- OTHER INFORMATION
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   This document is prepared pursuant to the OSHA Hazard Communication 
Standard (29 CFR 1910.1200).  The information herein is given in good faith,
but no warranty, expressed or implied is made.  Consult RectorSeal for further
information:  (713) 263-8001