Safety Data Sheet

Revision Number: 008.1 Issue date: 11/07/2016

1. PRODUCT AND COMPANY IDENTIFICATION

Product name: Loctite 242 Threadlocker IDH number: 492140
Product type: Anaerobic Sealant Item number: 37477
Restriction of Use: None identified Region: United States
Company address: Contact information:
Henkel Corporation Telephone: (860) 571-5100
One Henkel Way MEDICAL EMERGENCY Phone: Poison Control Center
Rocky Hill, Connecticut 06067 1-877-671-4608 (toll free) or 1-303-592-1711
TRANSPORT EMERGENCY Phone: CHEMTREC
1-800-424-9300 (toll free) or 1-703-527-3887
Internet: www.henkelna.com

2. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
WARNING: CAUSES SKIN AND EYE IRRITATION.
MAY CAUSE AN ALLERGIC SKIN REACTION.

HAZARD CLASS HAZARD CATEGORY

SKIN IRRITATION 2
EYE IRRITATION 2B
SKIN SENSITIZATION 1

PICTOGRAM(S)

Precautionary Statements

Prevention: Avoid breathing vapors, mist, or spray. Wash affected area thoroughly after handling.
Contaminated work clothing should not be allowed out of the workplace. Wear protective
gloves.
Response: IF ON SKIN: Wash with plenty of water. IF IN EYES: Rinse cautiously with water for several
minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If skin irritation or
rash occurs: Get medical attention. If eye irritation persists: Get medical attention. Take off
contaminated clothing.
Storage: Not prescribed
Disposal: Dispose of contents and/or container according to Federal, State/Provincial and local
governmental regulations.

Classification complies with OSHA Hazard Communication Standard (29 CFR 1910.1200) and is consistent with the provisions of the
United Nations Globally Harmonized System of Classification and Labeling of Chemicals (GHS).

See Section 11 for additional toxicological information.

3. COMPOSITION / INFORMATION ON INGREDIENTS

Hazardous Component(s) CAS Number Percentage*
Polyglycol dimethacrylate 25852-47-5 60 - 70

IDH number: 492140 Product name: Loctite 242 Threadlocker

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Oleic acid 5.5EO 9004-96-0 20 - 30
Saccharin 81-07-2 1-5
Silica, amorphous, fumed, crystal-free 112945-52-5 1-5
Cumene hydroperoxide 80-15-9 1-5
Propane-1,2-diol 57-55-6 1-5
Cumene 98-82-8 0.1 - 1
Titanium dioxide 13463-67-7 0.1 - 1

* Exact percentages may vary or are trade secret. Concentration range is provided to assist users in providing appropriate protections.

4. FIRST AID MEASURES

Inhalation: Move to fresh air. If breathing is difficult, give oxygen. If not breathing, give
artificial respiration. Get medical attention.

Skin contact: Immediately flush skin with plenty of water (using soap, if available). Remove
contaminated clothing and footwear. Wash clothing before reuse. Get medical
attention.

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

Ingestion: DO NOT induce vomiting unless directed to do so by medical personnel.

Never give anything by mouth to an unconscious person. Get medical
attention.

Symptoms: See Section 11.

5. FIRE FIGHTING MEASURES

Extinguishing media: Water spray (fog), foam, dry chemical or carbon dioxide.

Special firefighting procedures: Wear self-contained breathing apparatus and full protective clothing, such as
turn-out gear. In case of fire, keep containers cool with water spray.

Unusual fire or explosion hazards: Uncontrolled polymerization may occur at high temperatures resulting in
explosions or rupture of storage containers.

Hazardous combustion products: Oxides of carbon. Oxides of sulfur. Oxides of nitrogen. Irritating organic
vapours.

6. ACCIDENTAL RELEASE MEASURES

Use personal protection recommended in Section 8, isolate the hazard area and deny entry to unnecessary and unprotected
personnel.

Environmental precautions: Do not allow product to enter sewer or waterways.

Clean-up methods: Remove all sources of ignition. Evacuate and ventilate spill area; dike spill to
prevent entry into water system; wear full protective equipment during clean-
up. Soak up with inert absorbent material (e.g. sand, silica gel, acid binder,
universal binder, sawdust). Scrape up as much material as possible. Store in a
partly filled, closed container until disposal. Refer to Section 8 "Exposure
Controls / Personal Protection" prior to clean up.

IDH number: 492140 Product name: Loctite 242 Threadlocker

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 7. HANDLING AND STORAGE
Handling: Use only with adequate ventilation. Prevent contact with eyes, skin and
clothing. Do not breathe vapor and mist. Wash thoroughly after handling.
Keep container closed. Refer to Section 8.

Storage: For safe storage, store between 0 °C (32°F) and 32 °C (89.6 °F)
Keep in a cool, well ventilated area away from heat, sparks and open flame.
Keep container tightly closed until ready for use.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Employers should complete an assessment of all workplaces to determine the need for, and selection of, proper exposure
controls and protective equipment for each task performed.

Hazardous Component(s) ACGIH TLV OSHA PEL AIHA WEEL OTHER

Polyglycol dimethacrylate None None None None
Oleic acid 5.5EO None None None None
Saccharin None None None None
10 mg/m3 TWA
Inhalable dust. 20 MPPCF TWA
Silica, amorphous, fumed, crystal-free None None
3 mg/m3 TWA 0.8 mg/m3 TWA
Respirable fraction.
1 ppm (6 mg/m3)
Cumene hydroperoxide None None TWA None
(SKIN)
10 mg/m3 TWA
Propane-1,2-diol None None None
Aerosol.
50 ppm (245 mg/m3)
Cumene 50 ppm TWA PEL None None
(SKIN)
15 mg/m3 PEL Total
Titanium dioxide 10 mg/m3 TWA None None
dust.

Engineering controls: Provide adequate local exhaust ventilation to maintain worker exposure below
exposure limits.

Respiratory protection: Use NIOSH approved respirator if there is potential to exceed exposure
limit(s).

Eye/face protection: Safety goggles or safety glasses with side shields. Full face protection should
be used if the potential for splashing or spraying of product exists. Safety
showers and eye wash stations should be available.

Skin protection: Use chemical resistant, impermeable clothing including gloves and either an
apron or body suit to prevent skin contact. Neoprene gloves. Butyl rubber
gloves. Natural rubber gloves.

9. PHYSICAL AND CHEMICAL PROPERTIES

Physical state: Liquid
Color: Blue
Odor: Mild
Odor threshold: Not available.
pH: Not applicable
Vapor pressure: < 5 mm hg (27 °C (80.6 °F))
Boiling point/range: > 149 °C (> 300.2 °F)
Melting point/ range: Not available.
Specific gravity: 1.1 at 23.9 °C (75.02 °F)
Vapor density: Not available.
Flash point: > 93.3 °C (> 199.94 °F) Tagliabue closed cup
Flame projection: Not applicable
Flammable/Explosive limits - lower: 2.6 % (propylene glycol)

IDH number: 492140 Product name: Loctite 242 Threadlocker

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 Flammable/Explosive limits - upper: 12.5 % (propylene glycol)
Autoignition temperature: Not determined
Flammability: Not applicable
Evaporation rate: Not available.
Solubility in water: Slight
Partition coefficient (n-octanol/water): Not available.
VOC content: 0.56 %; 6.17 g/l (California SCAQMD Method 316B) (Estimated)
Viscosity: Not available.
Decomposition temperature: Not available.

10. STABILITY AND REACTIVITY

Stability: Stable under normal conditions of storage and use.

Hazardous reactions: None under normal processing. Polymerization may occur at elevated temperature or in the
presence of incompatible materials.

Hazardous decomposition Oxides of carbon. Oxides of sulfur. Oxides of nitrogen. Irritating organic vapours.
products:

Incompatible materials: Strong oxidizing agents. Free radical initiators. Strong reducing agents. Alkalis. Oxygen
scavengers. Other polymerization initiators. Copper. Iron. Zinc. Aluminum. Rust.

Reactivity: Not available.

Conditions to avoid: Elevated temperatures. Heat, flames, sparks and other sources of ignition. Store away from
incompatible materials.

11. TOXICOLOGICAL INFORMATION

Relevant routes of exposure: Skin, Inhalation, Eyes, Ingestion

IDH number: 492140 Product name: Loctite 242 Threadlocker

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 Potential Health Effects/Symptoms

Inhalation: Inhalation of vapors or mists of the product may be irritating to the respiratory system.
Skin contact: Causes skin irritation. May cause allergic skin reaction.
Eye contact: Causes eye irritation.
Ingestion: May cause gastrointestinal tract irritation if swallowed.

Hazardous Component(s) LD50s and LC50s Immediate and Delayed Health Effects
Polyglycol dimethacrylate None Allergen, Irritant
Oleic acid 5.5EO None Irritant
Saccharin Oral LD50 (Mouse) = 17 g/kg No Target Organs
Silica, amorphous, fumed, crystal-free None Nuisance dust
Allergen, Central nervous system, Corrosive,
Cumene hydroperoxide Inhalation LC50 (Mouse, 4 h) = 200 mg/l
Irritant, Mutagen
Oral LD50 (Rabbit) = 18 g/kg
Propane-1,2-diol Oral LD50 (Mouse) = 23.9 g/kg Irritant
Oral LD50 (Rat) = 30 g/kg
Oral LD50 (Rat) = 2.91 g/kg
Cumene Oral LD50 (Rat) = 1,400 mg/kg Central nervous system, Irritant, Lung
Inhalation LC50 (Rat, 4 h) = 8000 ppm
Irritant, Respiratory, Some evidence of
Titanium dioxide None
carcinogenicity

OSHA Carcinogen
Hazardous Component(s) NTP Carcinogen IARC Carcinogen
(Specifically Regulated)
Polyglycol dimethacrylate No No No
Oleic acid 5.5EO No No No
Saccharin No No No
Silica, amorphous, fumed, crystal-free No No No
Cumene hydroperoxide No No No
Propane-1,2-diol No No No
Reasonably Anticipated to be
Cumene Group 2B No
a Human Carcinogen.
Titanium dioxide No Group 2B No

12. ECOLOGICAL INFORMATION

Ecological information: Not available.

13. DISPOSAL CONSIDERATIONS

Information provided is for unused product only.

Recommended method of disposal: Follow all local, state, federal and provincial regulations for disposal.

Hazardous waste number: Not a RCRA hazardous waste.

14. TRANSPORT INFORMATION

The transport information provided in this section only applies to the material/formulation itself, and is not specific to any
package/configuration.

U.S. Department of Transportation Ground (49 CFR)

Proper shipping name: RQ, Environmentally hazardous substance, liquid, n.o.s.
Hazard class or division: 9
Identification number: UN 3082
Packing group: III
DOT Hazardous Substance(s): alpha,alpha-Dimethylbenzylhydroperoxide

IDH number: 492140 Product name: Loctite 242 Threadlocker

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 International Air Transportation (ICAO/IATA)
Proper shipping name: RQ, Environmentally hazardous substance, liquid, n.o.s.
Hazard class or division: 9
Identification number: UN 3082
Packing group: III

Water Transportation (IMO/IMDG)

Proper shipping name: RQ, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S.
Hazard class or division: 9
Identification number: UN 3082
Packing group: III

15. REGULATORY INFORMATION

United States Regulatory Information

TSCA 8 (b) Inventory Status: All components are listed or are exempt from listing on the Toxic Substances Control Act
Inventory.
TSCA 12 (b) Export Notification: None above reporting de minimis

CERCLA/SARA Section 302 EHS: None above reporting de minimis.

CERCLA/SARA Section 311/312: Immediate Health, Delayed Health
CERCLA/SARA Section 313: This product contains the following toxic chemicals subject to the reporting requirements of
section 313 of the Emergency Planning and Community Right-To-Know Act of 1986 (40
CFR 372). Saccharin (CAS# 81-07-2). Cumene hydroperoxide (CAS# 80-15-9).
CERCLA Reportable quantity: Cumene hydroperoxide (CAS# 80-15-9) 10 lbs. (4.54 kg)

California Proposition 65: This product contains a chemical known in the State of California to cause cancer.

Canada Regulatory Information

CEPA DSL/NDSL Status: Contains one or more components listed on the Non-Domestic Substances List. All other
components are listed on or are exempt from listing on the Domestic Substances List.
Components listed on the NDSL must be tracked by all Canadian Importers of Record as
required by Environment Canada. They may be imported into Canada in limited quantities.
Please contact Regulatory Affairs for additional details.

16. OTHER INFORMATION

This safety data sheet contains changes from the previous version in sections: Reviewed SDS. Reissued with new date.

Prepared by: Sheila Gines, Regulatory Affairs Specialist

Issue date: 11/07/2016

DISCLAIMER: The data contained herein are furnished for information only and are believed to be reliable. However, Henkel
Corporation and its affiliates (“Henkel”) does not assume responsibility for any results obtained by persons over whose methods
Henkel has no control. It is the user’s responsibility to determine the suitability of Henkel’s products or any production methods
mentioned herein for a particular purpose, and to adopt such precautions as may be advisable for the protection of property and
persons against any hazards that may be involved in the handling and use of any Henkel’s products. In light of the foregoing,
Henkel specifically disclaims all warranties, express or implied, including warranties of merchantability and fitness for a particular
purpose, arising from sale or use of Henkel’s products. Henkel further disclaims any liability for consequential or incidental damages
of any kind, including lost profits.

IDH number: 492140 Product name: Loctite 242 Threadlocker

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