Aluminum oxide, Refractory Brushable Paint, Water-based — Safety Data Sheet — Thermo Fisher Scientific Chemicals, Inc.

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SAFETY DATA SHEET

Revision Date 28-Dec-2025 Revision Number 5

This safety data sheet was created pursuant to the requirements of: US OSHA Hazard Communication Standard 2024 (29 CFR 1910.1200)

1. Identification

Product Name Aluminum oxide, Refractory Brushable Paint, Water-based

Cat No. : 44887

Synonyms No information available

Recommended Use Laboratory chemicals. Uses advised against Food, drug, pesticide or biocidal product use.

Details of the supplier of the safety data sheet

Company Thermo Fisher Scientific Chemicals, Inc. 30 Bond Street Ward Hill, MA 01835-8099 Tel: 800-343-0660 Fax: 800-322-4757

Emergency Telephone Number For information US call: 001-800-227-6701 / Europe call: +32 14 57 52 11 Emergency Number US:001-201-796-7100 / Europe: +32 14 57 52 99 CHEMTREC Tel. No. US:001-800-424-9300 / Europe:001-703-527-3887

2. Hazard(s) identification

Classification This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024)

Corrosive to metals Category 1 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 1

Label Elements

Signal Word Danger

Hazard Statements May be corrosive to metals Causes skin irritation Causes serious eye damage

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Precautionary Statements Prevention Wash face, hands and any exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection Keep only in original packaging Skin IF ON SKIN: Wash with plenty of soap and water If skin irritation occurs: Get medical advice/attention Take off contaminated clothing Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Immediately call a POISON CENTER or doctor/physician Spills Absorb spillage to prevent material damage Storage Store in corrosive resistant polypropylene container with a resistant inliner Hazards not otherwise classified (HNOC) None identified

Hazards classified under paragraph (d)(1)(ii) of 1910.1200 No information available

3. Composition/information on Ingredients

Component CAS No Weight % Aluminum oxide 1344-28-1 55 Water 7732-18-5 37 Boehmite (Al(OH)O) 1318-23-6 5 Nitricacid…% [C≤70%] 7697-37-2 3

4. First-aid measures

General Advice If symptoms persist, call a physician.

Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.

Skin Contact Wash off immediately with plenty of water for at least 15 minutes. If skin irritation persists, call a physician.

Inhalation Remove to fresh air. If not breathing, give artificial respiration. Get medical attention if symptoms occur.

Ingestion Clean mouth with water and drink afterwards plenty of water.

Most important symptoms and Causes eye burns. Causes severe eye damage. effects Notes to Physician Treat symptomatically

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5. Fire-fighting measures

Suitable Extinguishing Media Not combustible.

Unsuitable Extinguishing Media No information available

Flash Point No information available Method - No information available

Autoignition Temperature No information available Explosion Limits Upper No data available Lower No data available Sensitivity to Mechanical Impact No information available Sensitivity to Static Discharge No information available

Specific Hazards Arising from the Chemical Keep product and empty container away from heat and sources of ignition.

Hazardous Combustion Products Nitrogen oxides (NOx). Fumes of aluminum or aluminum oxide. Protective Equipment and Precautions for Firefighters As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

NFPA Health Flammability Instability Physical hazards 3 0 0 -

6. Accidental release measures

Personal Precautions Ensure adequate ventilation. Use personal protective equipment as required. Environmental Precautions Should not be released into the environment. See Section 12 for additional Ecological Information.

Methods for Containment and Clean Soak up with inert absorbent material. Keep in suitable, closed containers for disposal. Up

7. Handling and Storage

Handling Wear personal protective equipment/face protection. Ensure adequate ventilation. Avoid ingestion and inhalation. Do not get in eyes, on skin, or on clothing.

Storage. Keep containers tightly closed in a dry, cool and well-ventilated place. Incompatible Materials. Strong bases. Water.

8. Exposure controls / personal protection

Exposure Guidelines

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Aluminum oxide, Refractory Brushable Paint, Revision Date 28-Dec-2025 Water-based ______________________________________________________________________________________________

Component ACGIH TLV OSHA PEL NIOSH Mexico OEL (TWA) Aluminum oxide TWA: 1 mg/m3 (Vacated) TWA: 10 mg/m3 TWA: 10 mg/m3 TWA: 1 ppm (Vacated) TWA: 5 mg/m3 TWA: 15 mg/m3 TWA: 5 mg/m3 Boehmite (Al(OH)O) TWA: 1 mg/m3 TWA: 1 ppm Nitricacid…% [C≤70%] TWA: 2 ppm (Vacated) TWA: 2 ppm IDLH: 25 ppm TWA: 2 ppm STEL: 4 ppm (Vacated) TWA: 5 mg/m3 REL = 2 ppm (TWA) STEL: 4 ppm (Vacated) STEL: 4 ppm REL = 5 mg/m3 (TWA) (Vacated) STEL: 10 mg/m3 STEL: 4 ppm TWA: 2 ppm STEL: 10 mg/m3 TWA: 5 mg/m3

Legend

ACGIH - American Conference of Governmental Industrial Hygienists OSHA - Occupational Safety and Health Administration NIOSH: NIOSH - National Institute for Occupational Safety and Health

Engineering Measures None under normal use conditions. Ensure that eyewash stations and safety showers are close to the workstation location.

Personal Protective Equipment

Eye/face Protection Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.

Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure.

Respiratory Protection No protective equipment is needed under normal use conditions.

Recommended Filter type: Particle filter.

Hygiene Measures Handle in accordance with good industrial hygiene and safety practice.

9. Physical and chemical properties

Appearance Physical State Liquid Viscous liquid Color White Odor No information available Odor Threshold No information available Property Values Remarks •Method Melting Point/Range No data available Softening Point No data available Boiling Point/Range No information available Flash Point No information available Method - No information available Flammability (liquid) No data available Flammability (solid,gas) Not applicable Liquid Explosion Limits No data available

Autoignition Temperature No data available Decomposition Temperature No data available pH No information available Viscosity No data available Water Solubility Miscible Solubility in other solvents No information available

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Partition Coefficient (n-octanol/water) Component log Pow Nitricacid…% [C≤70%] -2.3 Vapor Pressure 23 hPa @ 20 °C Density / Specific Gravity No data available Bulk Density Not applicable Liquid Vapor Density No data available (Air = 1.0) Particle characteristics Not applicable (liquid)

Other Information

10. Stability and reactivity

Reactive Hazard None known, based on information available

Stability Stable under normal conditions.

Conditions to Avoid Incompatible products.

Incompatible Materials Strong bases, Water

Hazardous Decomposition Products Nitrogen oxides (NOx), Fumes of aluminum or aluminum oxide

Hazardous Polymerization Hazardous polymerization does not occur.

Hazardous Reactions None under normal processing.

11. Toxicological information

Information on expected route of exposure

Inhalation Not an expected route of exposure. Ingestion May be harmful if swallowed. Eyes Avoid contact with eyes. Corrosive to the eyes and may cause severe damage including blindness. May cause irritation. Skin Avoid contact with skin. Skin Corrosion/Irritation. May cause irritation.

Toxicology data for the components

Component LD50 Oral LD50 Dermal LC50 Inhalation Aluminum oxide > 5000 mg/kg ( Rat ) - > 2.3 mg/l 4 h (OECD Guideline 401) (OECD Guideline 403) Water - - - Boehmite (Al(OH)O) LD50 > 5050 mg/kg ( Rat ) - LC50 > 5.09 mg/L ( Rat ) 4 h

Nitricacid…% [C ≤70%] - - LC50 = 2500 ppm. (Rat) 1h

Toxicologically Synergistic No information available Products

(b) skin corrosion/irritation; Category 2

(c) serious eye damage/irritation; Category 1

(d) respiratory or skin sensitization; Respiratory No data available

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Skin No data available

(e) germ cell mutagenicity; No data available

(f) carcinogenicity;

The table below indicates whether each agency has listed any ingredient as a carcinogen

Component CAS No IARC NTP ACGIH OSHA Mexico Aluminum oxide 1344-28-1 Not listed Not listed Not listed Not listed Not listed Water 7732-18-5 Not listed Not listed Not listed Not listed Not listed Boehmite (Al(OH)O) 1318-23-6 Not listed Not listed Not listed Not listed Not listed Nitricacid…% [C≤70 7697-37-2 Not listed Not listed Not listed Not listed Not listed %]

(g) reproductive toxicity; No data available

(h) STOT-single exposure; No data available

(i) STOT-repeated exposure; No data available

Target Organs No information available.

(j) aspiration hazard; No data available

Symptoms / effects,both acute and No information available. delayed

Other Adverse Effects The toxicological properties have not been fully investigated.

Endocrine Disrupting Properties This product does not contain any known or suspected endocrine disruptors.

12. Ecological information

Ecotoxicity .

Component Freshwater Algae Freshwater Fish Microtox Water Flea Boehmite (Al(OH)O) Not listed LC50: > 100 mg/L, 96h Not listed EC50: > 100 mg/L, 48h semi-static (Pimephales (Daphnia magna) promelas) LC50: > 100 mg/L, 96h semi-static (Oncorhynchus mykiss)

Persistence and Degradability Miscible with water Persistence is unlikely based on information available.

Bioaccumulation/ Accumulation No information available.

Mobility Will likely be mobile in the environment due to its water solubility.

Component log Pow Nitricacid…% [C ≤70%] -2.3

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13. Disposal considerations

Waste Disposal Methods Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Chemical waste generators must also consult local, regional, and national hazardous waste regulations to ensure complete and accurate classification.

14. Transport information

DOT UN-No UN1760 Proper Shipping Name Corrosive liquid, n.o.s. Technical Shipping Name (NITRIC ACID) Hazard Class 8 Packing Group III TDG UN-No UN1760 Proper Shipping Name Corrosive liquid, n.o.s. Technical Shipping Name (NITRIC ACID) Hazard Class 8 Packing Group III IATA UN-No UN1760 Proper Shipping Name Corrosive liquid, n.o.s. Technical Shipping Name (NITRIC ACID) Hazard Class 8 Packing Group III IMDG/IMO UN-No UN1760 Proper Shipping Name Corrosive liquid, n.o.s. Technical Shipping Name (NITRIC ACID) Hazard Class 8 Packing Group III

15. Regulatory Information

United States of America Inventory

Component CAS No TSCA TSCA Inventory notification - TSCA - EPA Regulatory Active-Inactive Flags Aluminum oxide 1344-28-1 X ACTIVE - Water 7732-18-5 X ACTIVE - Boehmite (Al(OH)O) 1318-23-6 X ACTIVE - Nitricacid…% [C≤70%] 7697-37-2 X ACTIVE -

Legend: TSCA US EPA (TSCA) - Toxic Substances Control Act, (40 CFR Part 710) X - Listed '-' - Not Listed

TSCA - Per 40 CFR 751, Regulation of Certain Chemical Not applicable Substances & Mixtures, Under TSCA Section 6(h) (PBT)

TSCA 12(b) - Notices of Export Not applicable

International Inventories Canada (DSL/NDSL), Europe (EINECS/ELINCS/NLP), Philippines (PICCS), Japan (ENCS), Japan (ISHL), Australia (AICS), China (IECSC), Korea (KECL).

Component CAS No DSL NDSL EINECS PICCS ENCS ISHL AICS IECSC KECL Aluminum oxide 1344-28-1 X - 215-691-6 X X X X X KE-01012

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Water 7732-18-5 X - 231-791-2 X X X X KE-35400 Boehmite (Al(OH)O) 1318-23-6 - X 215-284-3 - X X - X KE-03475 Nitricacid…% [C≤70%] 7697-37-2 X - 231-714-2 X X X X X KE-25911

KECL - NIER number or KE number (http://ncis.nier.go.kr/en/main.do)

U.S. Federal Regulations

SARA 313

Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA). This product contains a chemical

or chemicals which are subject to the reporting requirements of the Act and Title 40 of the Code of Federal Regulations, Part 372.

Component CAS No Weight % SARA 313 - Threshold SARA 313 - Reporting Values % threasholds Aluminum oxide 1344-28-1 55 1.0 % - Nitricacid…% [C ≤70 7697-37-2 3 1.0 % - %]

SARA 311/312 Hazard Categories Should this product meet EPCRA 311/312 Tier reporting criteria at 40 CFR 370, refer to Section 2 of this SDS for appropriate classifications.

CWA (Clean Water Act) Component CWA - Hazardous CWA - Reportable CWA - Toxic Pollutants CWA - Priority Pollutants Substances Quantities Nitricacid…% [C ≤70%] X 1000 lb - -

Clean Air Act Not applicable

OSHA - Occupational Safety and Not applicable Health Administration

Component Specifically Regulated Chemicals Highly Hazardous Chemicals Nitricacid…% [C ≤70%] - TQ: 500 lb

CERCLA This material, as supplied, contains one or more substances regulated as a hazardous substance under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302) or the Superfund Amendments and Reauthorization Act (SARA) (40 CFR 355).

Component Hazardous Substances CERCLA Extremely SARA Reportable Quantity RQs Hazardous Substances (RQ) RQs Nitricacid…% [C≤70%] 1000 lb 1000 lb 1000 lb 454 kg

California Proposition 65 This product does not contain any Proposition 65 chemicals.

U.S. State Right-to-Know Regulations

Component Massachusetts New Jersey Pennsylvania Illinois Rhode Island Aluminum oxide X X X - X Water - - X - - Nitricacid…% [C ≤70 X X X X X %]

U.S. Department of Transportation Reportable Quantity (RQ): Y DOT Marine Pollutant N

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DOT Severe Marine Pollutant N

U.S. Department of Homeland This product contains the following DHS chemicals: Security Legend - STQs = Screening Threshold Quantities, APA = A placarded amount

Component DHS Chemical Facility Anti-Terrorism Standard Nitricacid…% [C ≤70%] Release STQs - 15000lb Theft STQs - 400lb Other International Regulations

Mexico - Grade No information available

Authorisation/Restrictions according to EU REACH

Component CAS No REACH (1907/2006) - REACH (1907/2006) - REACH Regulation (EC Annex XIV - Substances Annex XVII - Restrictions 1907/2006) article 59 - Subject to Authorization on Certain Dangerous Candidate List of Substances Substances of Very High Concern (SVHC) Aluminum oxide 1344-28-1 - - - Water 7732-18-5 - - - Boehmite (Al(OH)O) 1318-23-6 - - - Nitricacid…% [C≤70%] 7697-37-2 - Use restricted. See entry - 75. (see link for restriction details)

REACH links https://echa.europa.eu/substances-restricted-under-reach

Safety, health and environmental regulations/legislation specific for the substance or mixture

Component CAS No OECD HPV Persistent Organic Ozone Depletion Restriction of Pollutant Potential Hazardous Substances (RoHS) Aluminum oxide 1344-28-1 Listed Not applicable Not applicable Not applicable Water 7732-18-5 Listed Not applicable Not applicable Not applicable Boehmite (Al(OH)O) 1318-23-6 Listed Not applicable Not applicable Not applicable Nitricacid…% [C≤70%] 7697-37-2 Listed Not applicable Not applicable Not applicable

Contains component(s) that meet a 'definition' of per & poly fluoroalkyl substance (PFAS)? Not applicable

Other International Regulations

Component CAS No Seveso III Directive Seveso III Directive Rotterdam Basel Convention (2012/18/EC) - (2012/18/EC) - Convention (PIC) (Hazardous Waste) Qualifying Quantities Qualifying Quantities for Major Accident for Safety Report Notification Requirements Aluminum oxide 1344-28-1 Not applicable Not applicable Not applicable Not applicable Water 7732-18-5 Not applicable Not applicable Not applicable Not applicable Boehmite (Al(OH)O) 1318-23-6 Not applicable Not applicable Not applicable Not applicable Nitricacid…% [C≤70%] 7697-37-2 Not applicable Not applicable Not applicable Annex I - Y34

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16. Other Information

Prepared By Health, Safety and Environmental Department Email: chem.techinfo@thermofisher.com www.thermofisher.com

Revision Date 28-Dec-2025 Print Date 28-Dec-2025 Revision Summary UpdatedtotheU.S.DepartmentofLabor’sOccupationalSafetyandHealthAdministration (OSHA) which published its Final Rule in the Federal Register revising the Hazard Communication Standard (HCS/HazCom), 29 CFR 1910.1200 (2024) (HCS §1910.1200, 2024), May 20, 2024, effective July 19, 2024.

Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a warranty or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text

End of SDS

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Aluminum oxide, Refractory Brushable Paint, Water-based — Safety Data Sheet — Thermo Fisher Scientific Chemicals, Inc.

Full document text

1. Identification

2. Hazard(s) identification

3. Composition/information on Ingredients

4. First-aid measures

5. Fire-fighting measures

6. Accidental release measures

7. Handling and Storage

8. Exposure controls / personal protection

9. Physical and chemical properties

10. Stability and reactivity

11. Toxicological information

12. Ecological information

13. Disposal considerations

14. Transport information

15. Regulatory Information

Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA). This product contains a chemical

16. Other Information