SAFETY DATA SHEET
03JAN22
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: ……………………………………… WEST SYSTEM
406 Colloidal Silica
APPLICABLE PRODUCT CODE S: ………………. 406, 406-2, 406-7, 406-B.
CHEMICAL FAMILY: ………………………………….. Synthetic amorphous pyrogenic silica.
INTENDED PRODUCT USES: ……………………… Thickening agent for liquid epoxy resins.
PRODUCT RESTRICTIONS: ……………………….. None identified.
SDS VERSION: …………………………………………. 406-2022a
MANUFACTURER: EMERGENCY TELEPHONE NUMBERS (24 HRS):
Gougeon Brothers, Inc. Transportation
100 Patterson Ave. CHEMTREC: ……………….. 800-424-9300 (U.S.)
Bay City, MI 48706, U.S.A. 703-527-3887 (International)
Phone: 866-937-8797 or 989-684-7286 Non-transportation
www.westsystem.com Poison Hotline: …………….. 800-222-1222
2. HAZARDS IDENTIFICATION
Classification of Substance or Mixture
None
Label Elements
Hazard Pictogram(s):
None
Signal Word:
None
Hazard Statements:
None
Precautionary Statements:
None
Other Hazards
Handling and conveyance of material may create static electrical charge. Earth/ground handling and processing equipment to prevent
against static discharge.
3. COMPOSITION/INFORMATION ON HAZARDOUS INGREDIENTS
INGREDIENT NAME CAS # CONCENTRATION (%)
Synthetic amorphous pyrogenic silica 112945-52-5 80-100
The exact chemical identity and/or exact percentage (concentration) of each ingredient may be held as confidential business information
(CBI). Any ingredient not disclosed in this section may have been determined not to be hazardous to health or the environment, or it may
be present at a level below its disclosure threshold.
4. FIRST AID MEASURES
FIRST AID FOR EYES ……………………………………………………………… SYMPTOMS: Excessive exposure may cause irritation and tearing.
RESPONSE: Flush with water for at least 15 minutes. Remove contact lenses if present and easy to do. Consult a physician as a precautionary
measure if symptoms develop and persist.
FIRST AID FOR SKIN ………………………………………………………………. SYMPTOMS: May cause skin dryness or slight irritation. RESPONSE:
Wash with mild soap and water. Consult a physician if effects occur and persist.
FIRST AID FOR INHALATION…………………………………………………… SYMPTOMS: Excessive exposure may cause coughing, respiratory
irritation or shortness of breath due to temporary lung overload. RESPONSE: Remove to fresh air if symptoms develop and keep comfortable for
breathing. Seek medical advice is symptoms persist.
FIRST AID FOR INGESTION …………………………………………………….. SYMPTOMS: No acute adverse health effects expected from amounts
ingested under normal conditions of use. RESPONSE: Seek medical attention if a significant amount is ingested.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: ………………………………………………………… SUITABLE: Foam, carbon dioxide (CO2), water, or dry chemical. Fog or
mist is recommended if water is used. NON-SUITABLE: Avoid using high pressure media.
WEST SYSTEM
406 Colloidal Silica
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FIRE AND EXPLOSION HAZARDS: ………………………………………….. This product will not support combustion. Will not form combustible dust
concentrations in the air.
SPECIAL FIRE FIGHTING PROCEDURES: ………………………………… Wear a self-contained breathing apparatus and complete full-body personal
protective equipment.
6. ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES : …………………………………………………. Keep unnecessary and unprotected personnel from entering area. Use
appropriate safety and personal protective equipment as indicated in Section 8.
MITIGATION AND CLEAN UP PROCEDURES: …………………………… Use methods that avoid generating airborne dust. Use a vacuum with high
efficiency particulate air (HEPA) filtration is recommended. Avoid creating a dust cloud by brushing or sweeping, or using compressed air.
ENVIRONMENTAL PRECAUTIONS: ………………………………………….. Contain spilled product to the extent practical and feasible.
7. HANDLING AND STORAGE
STORAGE TEMPERATURE (min./max.): …………………………………… 0 F (-17 C) / 100 F (38 C)
STORAGE: …………………………………………………………………………….. Store in cool, dry place. Store in sealed containers to prevent moisture
absorption or absorption of other volatile materials.
HANDLING PRECAUTIONS: ……………………………………………………. Avoid dust formation. Avoid breathing dust. Wash after handling. Provide
appropriate exhaust ventilation at points of operation where dust can be generated. Avoid using compressed air. Take precautionary measures
against static discharges. Metal parts of mixing and processing equipment should be earthed/grounded.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
ENGINEERING CONTROLS: . Use with adequate general ventilation and/or local ventilation to keep
exposures below established limits.
EYE PROTECTION GUIDELINES: …………………………………………….. Safety glasses with side shields, or goggles if necessary.
SKIN PROTECTION GUIDELINES: ……………………………………………. Gloves or a barrier cream may be useful to help prevent skin from drying.
RESPIRATORY PROTECTION GUIDELINES: …………………………….. When ventilation cannot be made adequate enough to keep exposures
below established limits, use a NIOSH approved respirator with particulate filter, such as a N95 or greater, depending on specific workplace
conditions. Consult with your respirator and cartridge supplier to ensure proper selection of respirator and cartridge based on ingredients listed in
Section 3 and specific workplace conditions. Use and select a respirator according the guidelines established in OSHA 1910.134 or other
applicable respiratory protection standard.
ADDITIONAL PROTECTIVE MEASURES: ………………………………….. Practice good caution and personal cleanliness to avoid skin and eye
contact. Wash thoroughly after handling. Generally speaking, working cleanly and following basic precautionary measures will greatly minimize the
exposure to this product under normal use conditions.
OCCUPATIONAL EXPOSURE LIMITS: ……………………………………… Exposure limits may not be established for this product as a whole. For
established exposure limits of specific ingredients in this product, or other available exposure limit information, refer to the table below.
Ingredient Name CAS# Exposure Limit Information
Synthetic amorphous pyrogenic silica 112945-52-5 Amorphous silica: OSHA PEL 6 mg/m
3
Dust and PNOS: ACGIH 10mg/m
3
, TWA,
Inhalable; 3 mg/m
3
, TWA, Respirable; OSHA
PEL 15 mg/m
3
, TWA, total dust; 5 mg/m
3
, TWA,
Respirable
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL FORM: ………………………………………………………………….. Powder, solid.
COLOR: ………………………………………………………………………………… White.
ODOR: …………………………………………………………………………………… None.
ODOR THRESHOLD: ………………………………………………………………. No data available
pH …………………………………………………………………………………………. No data available
MELTING POINT / FREEZING POINT ………………………………………… No data available
BOILING POINT (760mm/Hg): ………………………………………………….. No data available
FLASH POINT: ……………………………………………………………………….. No data available
AUTO IGNITION TEMPERATURE ……………………………………………… No data available
LOWER EXPLOSIVE LIMIT (LEL) ……………………………………………… No data available
UPPER EXPLOSIVE LIMIT (UEL) ……………………………………………… No data available
VAPOR PRESSURE ………………………………………………………………… No data available
SPECIFIC GRAVITY/DENSITY (water = 1)………………………………….. 2.2
BULK DENSITY………………………………………………………………………. No data available
WEST SYSTEM
406 Colloidal Silica
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VAPOR DENSITY (air = 1) ……………………………………………………….. No data available
EVAPORATIOIN RATE (Butyl Acetate = 1) ………………………………… No data available
WATER SOLUBILITY (% BY WT.) …………………………………………….. Only slightly soluble
PARTITION COEFFICIENT, n-OCTANOL/WATER (log Pow) ………… No data available
KINEMATIC VISCOSITY: …………………………………………………………. No data (mm
2
/s
@ 20
C)
DECOMPOSITION TEMPERATURE : …………………………………………. No data available.
% VOLATILE BY WEIGHT: ………………………………………………………. Not applicable.
EXPLOSIVE PROPERTIES: ……………………………………………………… Not applicable. This product will not support combustion.
Kst VALUE: ……………………………………………………………………………. No data available
MAXIMUM EXPLOSION PRESSURE (Pmax) ……………………………… No data available
MINIMUM IGNITION ENERGY (MIE): …………………………………………. No data available
MAXIMUM EXPLOSION CONCENTRATION (MEC): ……………………. No data available
DUST EXPLOSION CLASSIFICATION: ……………………………………… No data available
10. STABILITY AND REACTIVITY
STABILITY: ……………………………………………………………………………. Product is stable at normal temperatures and pressures.
REACTIVITY/HAZARDOUS REACTIONS: ………………………………….. Product will not react by itself.
INCOMPATIBILITIES: ……………………………………………………………… None known.
CONDITIONS TO AVOID: ………………………………………………………… Avoid excessive airborne dust formation.
DECOMPOSITION PRODUCTS: ……………………………………………….. None known.
11. TOXICOLOGICAL AND HAZARD ENDPOINT INFORMATION
Component Name CAS# LD50 Oral LD50 Dermal LC50 Inhalation
Synthetic amorphous pyrogenic silica 112945-52-5 >5000 mg/kg
OECD 401
>2000 mg/kg
OECD 402
No data
ACUTE TOXICITY: ………………………………………………………………….. No specific toxicity data exists for this mixture. Classification is
based on acute toxicity estimation methods using ingredient data.
Oral: ……………………………………………………………………….. Not classified. Does not meet acute oral toxicity criteria.
Dermal: …………………………………………………………………… Not classified. Does not meet acute dermal toxicity criteria.
Inhalation:………………………………………………………………… Not classified. Does not meet acute inhalation toxicity criteria.
SKIN CORROSION / IRRITATION: …………………………………………….. Not classified. Does not meet criteria for skin corrosion/irritation.
SERIOUS EYE DAMAGE / IRRITATION :…………………………………….. Not classified. Does not meet criteria for skin eye
damage/irritation, OECD 405. High dust concentrations may cause mechanical irritation.
RESPIRATORY SENSITIZATION : ……………………………………………… Not classified. Does not meet criteria for respiratory sensitizer.
SKIN SENSITIZATION:…………………………………………………………….. Not classified. Does not meet criteria for skin sensitization.
REPRODUCTIVE TOXICITY : …………………………………………………….. Not classified. Does not meet criteria for reproductive toxicity.
MUTAGENICITY: …………………………………………………………………….. Not classified. Does not meet criteria for mutagenicity.
CARCINOGENICITY: ……………………………………………………………….. Not classified. Does not meet criteria for carcinogenicity.
No evidence of carcinogenicity was observed in multiple animal species following repeated oral or inhalation exposure to synthetic amorphous
silica. Similarly, epidemiology studies show no evidence of carcinogenicity in workers who manufacture synthetic amorphous silica.
STOT (Single Exposure): ………………………………………………………… Not classified. Does not meet STOT SE criteria.
STOT (Repeated Exposure): ……………………………………………………. Not classified. Does not meet STOT RE criteria.
Repeated dose toxicity: oral (rat), 13 weeks, LOEL = 1.3 mg/m
3
based on mild reversible effects in the lungs. Repeated dose toxicity: inhalation
(rat), 90 days, LOEL = 1 mg/m3 based on reversible effects in the lungs and effects in the nasal cavity.
ASPIRATION HAZARD : …………………………………………………………… Not classified. Does not meet aspiration toxicity criteria.
OTHER HEALTH HAZARD INFORMATION : ……………………………….. While product does not meet the classification of a respiratory
irritant, excessive inhalation exposure can irritate the respiratory tract. Temporary lung overload can cause coughing and shortness of
breath.
12. ECOLOGICAL INFORMATION
ACUTE AQUATIC TOXICITY :……………………………………………………. Not classified. Does not meet acute aquatic toxicity criteria.
WEST SYSTEM
406 Colloidal Silica
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Fish (brachydanio rerio) LC50 96h = >10,000 mg/L (OECD 203). No acute toxicity to daphnia with EL and EL50 ranging from >1000
10,000 mg/L (OECD 202).
CHRONIC AQUATIC TOXICITY : ……………………………………………….. No specific test data available.
PERSISTANCE AND BIOD EGRADABILITY: ………………………………. Not applicable to inorganic substances.
MOBILITY IN SOIL: …………………………………………………………………. No specific test data available for the mixture.
ADDITIONAL ECOTOXICITY INFORMATION : …………………………….. Prevent release to the environment, sewers and natural waters.
Ingredient CAS# Ecotoxicity Classification
Information
Synthetic amorphous pyrogenic silica 112945-52-5 Not classified.
13. DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD: ………………………………………………….. Evaluation of this product using RCRA criteria shows that it is not a
hazardous waste, either by listing or characteristics, in its purchased form. It is the responsibility of the user to determine proper disposal
methods.
Recycle (fuel blending) or reclaim may be preferred methods when conducted in accordance with federal, state and local regulations.
14. TRANSPORTATION INFORMATION
US DOT
UN NUMBER: …………………………………………………………………………. Not regulated.
SHIPPING NAME: ……………………………………………………………………. Not applicable.
TECHNICAL SHIPPING NAME: …………………………………………………. Not applicable.
HAZARD CLASS: …………………………………………………………………….. Not applicable.
PACKING GROUP: ………………………………………………………………….. Not applicable.
CANADA TDG
UN NUMBER: …………………………………………………………………………. Not regulated.
SHIPPING NAME: ……………………………………………………………………. Not applicable.
TECHNICAL SHIPPING NAME: …………………………………………………. Not applicable.
HAZARD CLASS: …………………………………………………………………….. Not applicable.
PACKING GROUP: ………………………………………………………………….. Not applicable.
ICAO/IATA
UN NUMBER: …………………………………………………………………………. Not regulated.
SHIPPING NAME: ……………………………………………………………………. Not applicable.
TECHNICAL SHIPPING NAME: …………………………………………………. Not applicable.
HAZARD CLASS: …………………………………………………………………….. Not applicable.
PACKING GROUP: ………………………………………………………………….. Not applicable.
MARINE POLLUTANT: …………………………………………………………….. Not applicable.
IMDG
UN NUMBER: …………………………………………………………………………. Not regulated.
SHIPPING NAME: ……………………………………………………………………. Not applicable.
TECHNICAL SHIPPING NAME: …………………………………………………. Not applicable.
HAZARD CLASS: …………………………………………………………………….. Not applicable.
PACKING GROUP: ………………………………………………………………….. Not applicable.
EmS Number: ………………………………………………………………………… Not applicable.
MARINE POLLUTANT ……………………………………………………………… Not applicable.
15. REGULATORY INFORMATION
COUNTRY INVENTORY LIST STATUS
United States TSCA All ingredients are listed or otherwise compliant.
Europe EINECS or ELINCS All ingredients are listed or otherwise compliant.
Canada CEPA (DSL/NDSL) All ingredients are listed or otherwise compliant.
Australia AICS All ingredients are listed or otherwise compliant.
Japan ENCS All ingredients are listed or otherwise compliant.
South Korea KECI All ingredients are listed or otherwise compliant.
China IECSC All ingredients are listed or otherwise compliant.
Philippines PICCS All ingredients are listed or otherwise compliant.
New Zealand NZIoC All ingredients are listed or otherwise compliant.
US EPA TSCA Requirements: ………………………………………………….. No data available.
Canada WHMIS Confidential Business Information (CBI): ………….. No data available.
WEST SYSTEM
406 Colloidal Silica
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US EPA SARA TITLE III Reporting and Notification Requirements:
Subject to Section 302 (TPQ) …………………………………………….. Not regulated.
Subject to Section 304 (RQ) ……………………………………………….. Not regulated.
Subject to Section 311 or 312 …………………………………………….. Not regulated.
Subject to Section 313 ………………………………………………………. Not regulated.
STATE REGULATORY INFORMATION:
Chemicals listed below may be specifically regulated by individual states. For details on state regulatory requirements you should contact the
appropriate state agency.
COMPONENT NAM E
/CAS NUMBER STATE CODE
Amorphous silica
7631-86-9 or 112945-52-5 PA, NJ, MA
16. OTHER INFORMATION
REASON FOR ISSUE:……………………………………………………………… Approval date change.
PREPARED BY: ……………………………………………………………………… Gougeon Brothers, Inc.
SDS CONTACT: ……………………………………………………………………… safety@gougeon.com
TITLE: …………………………………………………………………………………… Health, Safety & Environmental Manager
APPROVAL DATE: …………………………………………………………………. January 3, 2022
SUPERSEDES DATE: ……………………………………………………………… January 15, 2019
SDS VERSION: ………………………………………………………………………. 406-2022a
OTHER HAZARD INFORMATION AND RATING SYSTEMS :
HMIS RATING NFPA 704 CODES
HEALTH: 0
FLAMMABILITY: 1
PHYSICAL HAZARD: 0
PERSONAL PROTECTION:
Approximate HMIS and NFPA Risk Ratings Legend:
0 = Low or None; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe
Information in this document is furnished without warranty, expressed or implied, except that it is accurate to the best knowledge of Gougeon Brothers,
Inc. The data on this sheet is related only to the specific material designated herein. Gougeon Brothers, Inc. assumes no legal responsibility for use or
reliance upon these data.
0 0
1