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Cyanic acid,C,C'-(ethylidenedi-4,1-phenylene) ester

Material Safety Data Sheet
ADVANCED COMPOSITES
EX 1545 Part A MSDS No. 33
Date of Preparation: Jan. 27, 2007 Confidential

Section 1 - Chemical Product and Company Identification
Product/Chemical Name: EX-1545 Part A HMIS
Chemical Formula: NA H2
CAS Number: NA 1
F
Other Designations: Wet Lay-up, RTM, VARTM Resin System 1
General Use: Composites, Adhesives PPE??
Manufacturer: TenCate Advanced Composites USA, Inc. 18410 Butterfield Blvd., Morgan Hill, CA 95037 ?Sec. 8

Phone (408) 776-0700, FAX (408) 776-0107

Emergency Overview

Section 2 - Composition / Information on Ingredients
Ingredient Name CAS Number % wt
Cyanate Ester Resin 47073-92-7 100

Trace Impurities:

OSHA PEL ACGIH TLV NIOSH REL NIOSH
Ingredient TWA STEL TWA STEL TWA STEL IDLH
First Ingredient
none estab. none estab. none estab. none estab. none estab. none estab. none estab.
Toxicity Data:

Acute Oral Toxicity (LD50): >2,500mg/kg (rat)

Ames test: Negative

Skin Irritation: Slight

Eye Irritation: Mild

Section 3 - Physical and Chemical Properties
Physical State: Liquid Water Solubility: Negligible
Appearance and Odor: Slightly Yellowish, tacky; mild Other Solubilities: Soluble in organic solvents, e.g. ketones
odor Boiling Point: NA
Odor Threshold: NE Freezing/Melting Point: NE
Vapor Pressure: <1.0 @ 20 C Viscosity: Viscous Liquid, NE
Vapor Density (Air=1): >1 Refractive Index: NE
Formula Weight: Polymeric, NA Surface Tension: NE
% Volatile: <0.2%
Density:
Evaporation Rate: NA
Specific Gravity (H2O=1, at 4 ??C): 1.18
pH: NE
MSDS No. 33 EX-1545 Part A
Section 4 - Fire-Fighting Measures
NFPA
Flash Point: >200F
Flash Point Method: Setaflash
1
Burning Rate: NE
1
2
Autoignition Temperature: NE
??
LEL: NE
UEL: NE
Flammability Classification: 1
Extinguishing Media: water fog, dry chemical or CO2
Unusual Fire or Explosion Hazards: Closed containers may rupture (due to buildup of pressure) when exposed to extreme heat
Hazardous Combustion Products: Carbon Monoxide, Carbon dioxide, nitrogen oxides and other organic substances that may
be formed.
Fire-Fighting Instructions: Do not release runoff from fire control methods to sewers or waterways.
Fire-Fighting Equipment: Because fire may produce toxic thermal decomposition products, wear a self-contained breathing
apparatus (SCBA) with a full face piece operated in pressure-demand or positive-pressure mode.
Section 5 - Stability and Reactivity
Stability: stable at room temperature in closed containers under normal storage and handling conditions for a short period of
time, preferred to be stored at or below 0C.
Polymerization: Hazardous polymerization can occur with excess heat.
Chemical Incompatibilities: Can react vigorously with strong oxidizing agents, strong Lewis acids or mineral acids, transition
metals, and strong mineral and organic bases, primary and second aliphatic amines. Reaction with some other curing agents
may produce considerable heat.
Conditions to Avoid: Temperature above 160 F and contact with acids, bases, amines, water and transition metal complexes.
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, nitrogen oxides, and other organic substances may be
formed.
Section 6 - Health Hazard Information
Potential Health Effects
Primary Entry Routes: Skin/Dermal, Inhalation
Target Organs: Eyes
Acute Effects
Inhalation: Not expected to be a relevant route of exposure, however, under conditions where exposure to vapors or mists is
possible, could cause respiratory tract irritation.
Eye: Moderately irritating
Skin: Slightly irritating, may cause skin sensitization.
Ingestion: may be slightly toxic
Carcinogenicity: IARC, NTP, and OSHA do not list as a carcinogen.
Medical Conditions Aggravated by Long-Term Exposure: Pre-existing eye, skin and respiratory disorders may be aggravated
by exposure to this type of material
Chronic Effects: human evidence ?Cinadequate; animal evidence ?? inadequate. The significance of metagenic activity to man is
unknown.

Emergency and First Aid Procedures
Inhalation: Remove victim to fresh air and provide oxygen if breathing is difficult. Give artificial respiration if not breathing.
Get medical attention
Eye Contact: Flush eyes with plenty of water for 15 minutes while holding eyelids open. Get medical attention.
Skin Contact: Remove contaminated clothing/shoes and wipe excess from skin. Flush skin with water. Follow by washing with
soap and water. If irritation occurs, get medical attention. Do not reuse clothing until cleaned. Contaminated leather articles,
including shoes, cannot be decontaminated and should be destroyed to prevent reuse.
Ingestion: Do not induce vomiting. In general, no treatment is necessary unless large quantities of product are ingested. Get
medical attention.
After first aid, get appropriate in-plant, paramedic, or community medical support.
Note to Physicians:
Special Precautions/Procedures: In general, induction is unnecessary in high viscosity, low volatility products.

MSDS No. 33 EX-1545 Part A
Section 7 - Spill, Leak, and Disposal Procedures
Spill /Leak Procedures: May burn although not readily ignitable. Use cautious judgment when cleaning up large spills.
Small Spills: Take up with an absorbent material and dispose of properly.
Large Spills: Wear respirator and protective clothing as appropriate.
Containment: For large spills, dike far ahead of liquid spill for later disposal. Do not release into sewers or waterways.
Cleanup:
Regulatory Requirements: Follow applicable OSHA regulations (29 CFR 1910.120).
Disposal: Contact your supplier or a licensed contractor for detailed recommendations. Follow applicable federal, state, and
local regulations.
Disposal Regulatory Requirements: See Above
Container Cleaning and Disposal: See Above
Ecological Information: No relevant information found

EPA Regulations:
RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)
RCRA Hazardous Waste Classification (40 CFR 261): Not a hazardous waste under this regulation.
CERCLA Hazardous Substance (40 CFR 302.4) listed/unlisted specific per RCRA, Sec. 3001; CWA, Sec. 311 (b) (4); CWA,
Sec. 307(a), CAA, Sec. 112
CERCLA Reportable Quantity: Not listed.
SARA 311/312 Codes:
SARA Toxic Chemical (40 CFR 372.65): Not listed.
SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed, Threshold Planning Quantity (TPQ)
OSHA Regulations:
This MSDS has been prepared in compliance with the federal OSHA Hazard Communication Standard 29 CFR 1910.1200.
This product is not considered to be a hazardous chemical under that standard.
State Regulations:
California Proposition 65: Not Reported.
New Jersey Right to Know: Generic Name: Cyanate Resin, CAS Number: Confidential, Information not reported
Pennsylvania Right to Know: Generic Name: Cyanate Resin, CAS Number: Confidential, Not on Penn. Hazardous Substance
List.

Section 8 - Exposure Controls / Personal Protection
Engineering Controls:
Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs
(Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at
its source.
Administrative Controls:
Respiratory Protection: Seek professional advice prior to respirator selection and use. Follow OSHA respirator regulations
(29 CFR 1910.134) and, if necessary, wear an MSHA/NIOSH-approved respirator. Select respirator based on its suitability to
provide adequate worker protection for given working conditions, level of airborne contamination, and presence of sufficient
oxygen. For emergency or non-routine operations (cleaning spills, reactor vessels, or storage tanks), wear an SCBA.
Warning! Air-purifying respirators do not protect workers in oxygen-deficient atmospheres. If respirators are used, OSHA
requires a written respiratory protection program that includes at least: medical certification, training, fit-testing, periodic
environmental monitoring, maintenance, inspection, cleaning, and convenient, sanitary storage areas.
Protective Clothing/Equipment: Wear chemically protective gloves, boots, aprons, and gauntlets to prevent prolonged or
repeated skin contact. Wear protective eyeglasses or chemical safety goggles, per OSHA eye- and face-protection regulations
(29 CFR 1910.133). Contact lenses are not eye protective devices. Appropriate eye protection must be worn instead of, or in
conjunction with contact lenses.
Safety Stations: Make emergency eyewash stations, safety/quick-drench showers, and washing facilities available in work area.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Launder before reuse. Remove this
material from your shoes and clean personal protective equipment.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before
eating, drinking, smoking, using the toilet, or applying cosmetics.

MSDS No. 33 EX-1545 Part A
Section 9 - Special Precautions and Comments
Handling Precautions: Heating this material above 160 F, polymerization may occur. If a large mass is involved it may
generate large amount of exothermic heat. Some curing agents, e.g. aliphatic amines, can produce exothermic reactions, which
in large masses can cause runaway polymerization and charring of the reactants. Fumes and vapor from these thermal and
chemical decompositions vary widely in composition and toxicity. Do not breathe fumes. Use a NIOSH-Approved respirator,
as required, to prevent over exposure. In accord with 29 CFR 1910.134, use either an atmosphere-supply respirator or an air
purifying respirator for organic vapors.
Storage Requirements: Store at or below 0C for long term stability. Keep away from open flame and high temperatures.

DOT Transportation Data (49 CFR 172.101):
Shipping Name: Not Evaluated Packaging Authorizations Quantity Limitations
a) Passenger, Aircraft, or Railcar: N Shipping Symbols: a) Exceptions: N Hazard Class: Non Hazardous b) Non-bulk Packaging: NR b) Cargo Aircraft Only: N by D.O.T regulations c) Bulk Packaging: N ID No.: Not Regulated Vessel Stowage Requirements
Packing Group: Not Regulated a) Vessel Stowage: N Label: Not Regulated b) Other: Dept. of Transportation: Not
Regulated.
Special Provisions (172.102):

Prepared By: TenCate Advanced Composites USA, Inc.
Revision Notes: All components are included in the EPA Toxic Substances Control Act (TSCA) Chemical Substance Inventory

Disclaimer: As the conditions of methods of use are beyond our control, we do not assume any responsibility and expressly
disclaim any liability for any use of this material. Information contained herein is believed to be true and accurate but all
statements or suggestions are made without warranty, expressed or implied, regarding accuracy of the information, the hazards
connected with the use of the material or the results to be obtained from the use thereof. Compliance with all applicable federal,
state, and local laws and regulations remains the responsibility of the users.

Material Safety Data Sheet
ADVANCED COMPOSITES
EX-1545 Part B MSDS No. 33
Date of Preparation: Jan. 27, 2007 Confidential

Section 1 - Chemical Product and Company Identification
Product/Chemical Name: EX-1545 Part B HMIS
Chemical Formula: NA H2
CAS Number: NA 1
F
Other Designations: Wet Lay-up, RTM, VARTM Resin System 1
General Use: Composites, Adhesives PPE??
Manufacturer: TenCate Advanced Composites USA, Inc. 18410 Butterfield Blvd., Morgan Hill, CA 95037 ?Sec. 8

Phone (408) 776-0700, FAX (408) 776-0107

Emergency Overview

Section 2 - Composition / Information on Ingredients
Ingredient Name CAS Number % wt
Epoxy Resin 39817-09-9 93 -97
Catalyst 13395-16-9 3-7

Trace Impurities:

OSHA PEL ACGIH TLV NIOSH REL NIOSH
Ingredient TWA STEL TWA STEL TWA STEL IDLH
First Ingredient
none estab. none estab. none estab. none estab. none estab. none estab. none estab.
Second Ingredient
1mg/m3. none estab. 1 mg/m3 none estab. none estab. none estab. none estab.
Toxicity Data:

Acute Oral Toxicity (LD50): >1,030 mg/kg (rat)

Acute Dermal Toxicity (LD50): >4,600 mg/Kg (rabbit)

Ames test: Positive

Skin Irritation: Moderate (rabbit)

Eye Irritation: Mild (rabbit)

Sensitization: Possible in susceptible individuals

Section 3 - Physical and Chemical Properties
Physical State: Liquid Water Solubility: Negligible
Appearance and Odor: Yellowish green, tacky; mild Other Solubilities: Soluble in organic solvents, e.g. ketones
odor Boiling Point: 200-205 C @ 2 mm Hg
Odor Threshold: NE Freezing/Melting Point: NE
Vapor Pressure: NE Viscosity: NE
Vapor Density (Air=1): >1 Refractive Index: NE
Formula Weight: Polymeric, NA Surface Tension: NE
% Volatile: <0.5%
Density:
Evaporation Rate: NA
Specific Gravity (H2O=1, at 4 ??C): 1.2
pH: NE
MSDS No. 33 EX-1545 Part B
Section 4 - Fire-Fighting Measures
NFPA
Flash Point: >200 F
Flash Point Method: Setaflash
1
Burning Rate: NE
1
2
Autoignition Temperature: NE
??
LEL: NE
UEL: NE
Flammability Classification: 1
Extinguishing Media: water fog, dry chemical or CO2
Unusual Fire or Explosion Hazards: Closed containers may rupture (due to buildup of pressure) when exposed to extreme heat
Hazardous Combustion Products: Carbon Monoxide, Carbon dioxide, nitrogen oxides and other organic substances that may
be formed.
Fire-Fighting Instructions: Do not release runoff from fire control methods to sewers or waterways.
Fire-Fighting Equipment: Because fire may produce toxic thermal decomposition products, wear a self-contained breathing
apparatus (SCBA) with a full face piece operated in pressure-demand or positive-pressure mode.
Section 5 - Stability and Reactivity
Stability: stable at room temperature in closed containers under normal storage and handling conditions for a short period of
time, preferred to be stored at or below 0C.
Polymerization: Hazardous polymerization can occur with excess heat.
Chemical Incompatibilities: Can react vigorously with strong oxidizing agents, strong Lewis acids or mineral acids, transition
metals, and strong mineral and organic bases, primary and second aliphatic amines. Reaction with some other curing agents
may produce considerable heat.
Conditions to Avoid: Temperature above 160 F and contact with acids, bases, amines, water and transition metal complexes.
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, nitrogen oxides, and other organic substances may be
formed.
Section 6 - Health Hazard Information
Potential Health Effects
Primary Entry Routes: Skin/Dermal, Inhalation
Target Organs: Eyes
Acute Effects
Inhalation: Not expected to be a relevant route of exposure, however, under conditions where exposure to vapors or mists is
possible, could cause respiratory tract irritation.
Eye: Moderately irritating
Skin: Slightly irritating, may cause skin sensitization.
Ingestion: may be slightly toxic
Carcinogenicity: IARC, NTP, and OSHA do not list as a carcinogen.
Medical Conditions Aggravated by Long-Term Exposure: Pre-existing eye, skin and respiratory disorders may be aggravated
by exposure to this type of material
Chronic Effects: human evidence ?Cinadequate; animal evidence ?? inadequate. The significance of metagenic activity to man is
unknown.

Emergency and First Aid Procedures
Inhalation: Remove victim to fresh air and provide oxygen if breathing is difficult. Give artificial respiration if not breathing.
Get medical attention
Eye Contact: Flush eyes with plenty of water for 15 minutes while holding eyelids open. Get medical attention.
Skin Contact: Remove contaminated clothing/shoes and wipe excess from skin. Flush skin with water. Follow by washing with
soap and water. If irritation occurs, get medical attention. Do not reuse clothing until cleaned. Contaminated leather articles,
including shoes, cannot be decontaminated and should be destroyed to prevent reuse.
Ingestion: Do not induce vomiting. In general, no treatment is necessary unless large quantities of product are ingested. Get
medical attention.
After first aid, get appropriate in-plant, paramedic, or community medical support.
Note to Physicians:
Special Precautions/Procedures: In general, induction is unnecessary in high viscosity, low volatility products.
Section 7 - Spill, Leak, and Disposal Procedures
Spill /Leak Procedures: May burn although not readily ignitable. Use cautious judgment when cleaning up large spills.
Small Spills: Take up with an absorbent material and dispose of properly.

MSDS No. 33 EX-1545 Part B
Large Spills: Wear respirator and protective clothing as appropriate.
Containment: For large spills, dike far ahead of liquid spill for later disposal. Do not release into sewers or waterways.
Cleanup:
Regulatory Requirements: Follow applicable OSHA regulations (29 CFR 1910.120).
Disposal: Contact your supplier or a licensed contractor for detailed recommendations. Follow applicable federal, state, and
local regulations.
Disposal Regulatory Requirements: See Above
Container Cleaning and Disposal: See Above
Ecological Information: No relevant information found

EPA Regulations:
RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)
RCRA Hazardous Waste Classification (40 CFR 261): Not a hazardous waste under this regulation.
CERCLA Hazardous Substance (40 CFR 302.4) listed/unlisted specific per RCRA, Sec. 3001; CWA, Sec. 311 (b) (4); CWA,
Sec. 307(a), CAA, Sec. 112
CERCLA Reportable Quantity: Not listed.
SARA 311/312 Codes:
SARA Toxic Chemical (40 CFR 372.65): Not listed.
SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed, Threshold Planning Quantity (TPQ)
OSHA Regulations:
This MSDS has been prepared in compliance with the federal OSHA Hazard Communication Standard 29 CFR 1910.1200.
This product is not considered to be a hazardous chemical under that standard.
State Regulations:
California Proposition 65: Not Reported.
New Jersey Right to Know: Generic Name: Cyanate Resin, CAS Number: Confidential, Information not reported
Pennsylvania Right to Know: Generic Name: Cyanate Resin, CAS Number: Confidential, Not on Penn. Hazardous Substance
List.

Section 8 - Exposure Controls / Personal Protection
Engineering Controls:
Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs
(Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at
its source.
Administrative Controls:
Respiratory Protection: Seek professional advice prior to respirator selection and use. Follow OSHA respirator regulations
(29 CFR 1910.134) and, if necessary, wear an MSHA/NIOSH-approved respirator. Select respirator based on its suitability to
provide adequate worker protection for given working conditions, level of airborne contamination, and presence of sufficient
oxygen. For emergency or non-routine operations (cleaning spills, reactor vessels, or storage tanks), wear an SCBA.
Warning! Air-purifying respirators do not protect workers in oxygen-deficient atmospheres. If respirators are used, OSHA
requires a written respiratory protection program that includes at least: medical certification, training, fit-testing, periodic
environmental monitoring, maintenance, inspection, cleaning, and convenient, sanitary storage areas.
Protective Clothing/Equipment: Wear chemically protective gloves, boots, aprons, and gauntlets to prevent prolonged or
repeated skin contact. Wear protective eyeglasses or chemical safety goggles, per OSHA eye- and face-protection regulations
(29 CFR 1910.133). Contact lenses are not eye protective devices. Appropriate eye protection must be worn instead of, or in
conjunction with contact lenses.
Safety Stations: Make emergency eyewash stations, safety/quick-drench showers, and washing facilities available in work area.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Launder before reuse. Remove this
material from your shoes and clean personal protective equipment.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before
eating, drinking, smoking, using the toilet, or applying cosmetics.
Section 9 - Special Precautions and Comments
Handling Precautions: Heating this material above 160 F, polymerization may occur. If a large mass is involved it may
generate large amount of exothermic heat. Some curing agents, e.g. aliphatic amines, can produce exothermic reactions, which
in large masses can cause runaway polymerization and charring of the reactants. Fumes and vapor from these thermal and
chemical decompositions vary widely in composition and toxicity. Do not breathe fumes. Use a NIOSH-Approved respirator,
as required, to prevent over exposure. In accord with 29 CFR 1910.134, use either an atmosphere-supply respirator or an air
purifying respirator for organic vapors.

MSDS No. 33 EX-1545 Part B
Storage Requirements: Store at or below 0C for long term stability. Keep away from open flame and high temperatures.

DOT Transportation Data (49 CFR 172.101):
Shipping Name: Not Evaluated Packaging Authorizations Quantity Limitations
a) Passenger, Aircraft, or Railcar: N Shipping Symbols: a) Exceptions: N Hazard Class: Non Hazardous b) Non-bulk Packaging: NR b) Cargo Aircraft Only: N by D.O.T regulations c) Bulk Packaging: N ID No.: Not Regulated Vessel Stowage Requirements
Packing Group: Not Regulated a) Vessel Stowage: N Label: Not Regulated b) Other: Dept. of Transportation: Not
Regulated.
Special Provisions (172.102):

Prepared By: TenCate Advanced Composites USA, Inc.
Revision Notes: All components are included in the EPA Toxic Substances Control Act (TSCA) Chemical Substance Inventory

Disclaimer: As the conditions of methods of use are beyond our control, we do not assume any responsibility and expressly
disclaim any liability for any use of this material. Information contained herein is believed to be true and accurate but all
statements or suggestions are made without warranty, expressed or implied, regarding accuracy of the information, the hazards
connected with the use of the material or the results to be obtained from the use thereof. Compliance with all applicable federal,
state, and local laws and regulations remains the responsibility of the users.

;