The MSDS format adheres to the standards and regulatory requirements

of the United States and may not meet regulatory requirements

in other countries.

DuPont Page 1

Material Safety Data Sheet

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"KRYTOX" 240 Series Fluorinated Grease

3886PP Revised 5-MAR-2002

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CHEMICAL PRODUCT/COMPANY IDENTIFICATION

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Material Identification

"Krytox" is a registered trademark of DuPont.

Corporate MSDS Number : DU008138

Grade : AA,AB,AC,AD, & AZ

# Tradenames and Synonyms

"Krytox" TLC Grease

Company Identification

MANUFACTURER/DISTRIBUTOR

DuPont Chemical Solutions Enterprise

1007 Market Street

Wilmington, DE 19898

PHONE NUMBERS

Product Information : 1-800-441-7515 (outside the U.S.

302-774-1000)

Transport Emergency : CHEMTREC 1-800-424-9300(outside U.S.

703-527-3887)

Medical Emergency : 1-800-441-3637 (outside the U.S.

302-774-1000)

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COMPOSITION/INFORMATION ON INGREDIENTS

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Components

Material CAS Number %

PERFLUOROALKYLETHER 60164-51-4 73-82

PTFE 9002-84-0 18-27

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HAZARDS IDENTIFICATION

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Potential Health Effects

Skin contact may cause skin irritation with discomfort or

rash. Prolonged skin contact may cause redness and

inflammation of the hair follicles without skin

sensitization.

Eye contact may cause eye irritation with discomfort,

tearing or blurring of vision.

Inhalation of fluorine compounds released as decomposition

3886PP DuPont Page 2

Material Safety Data Sheet

(HAZARDS IDENTIFICATION - Continued)

products above 290 degC (554 degF) may cause lung irritation

and pulmonary edema which require medical treatment.

Inhalation of fumes or smoke from overheated or burning

grease may cause polymer fume fever, a temporary flu-like

illness accompanied by fever, chills, and sometimes cough,

of approximately 24 hours duration. Repeated episodes of

polymer fume fever may cause lung damage.

Carcinogenicity Information

None of the components present in this material at concentrations

equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH

as a carcinogen.

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FIRST AID MEASURES

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First Aid

INHALATION

If inhaled, remove to fresh air. If not breathing, give

artificial respiration. If breathing is difficult, give oxygen.

Call a physician.

SKIN CONTACT

Flush skin with water after contact. Wash contaminated clothing

before reuse.

EYE CONTACT

In case of contact, immediately flush eyes with plenty of water

for at least 15 minutes. Call a physician.

INGESTION

If swallowed, do not induce vomiting. Immediately give 2 glasses

of water. Never give anything by mouth to an unconscious person.

Call a physician.

Notes to Physicians

Activated charcoal mixture may be administered. To prepare

activated charcoal mixture, suspend 50 grams activated charcoal in

400 mL water and mix thoroughly. Administer 5 mL/kg, or 350 mL

for an average adult.

3886PP DuPont Page 3

Material Safety Data Sheet

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FIRE FIGHTING MEASURES

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Flammable Properties

Flash Point : Does not ignite

Method : PMCC

Non-combustible.

Extinguishing Media

As appropriate for combustibles in area

Fire Fighting Instructions

Wear self-contained breathing apparatus. Wear full protective

equipment.

Decomposition at flame temperatures may form toxic fluorine

compounds. Avoid breathing decomposition products.

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ACCIDENTAL RELEASE MEASURES

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Safeguards (Personnel)

NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)

sections before proceeding with clean-up. Use appropriate

PERSONAL PROTECTIVE EQUIPMENT during clean-up.

Accidental Release Measures

Place in container for disposal. Remove source of heat

and flame.

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HANDLING AND STORAGE

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Handling (Personnel)

Avoid contact with eyes. Avoid contact with skin. Wash

thoroughly after handling. Do not store or consume food, drink or

tobacco in areas where they may become contaminated with this

material.

Storage

Keep container tightly closed. Do not store or consume food,

drink or tobacco in areas where they may become contaminated with

this material.

Keep away from heat and flames to avoid decomposition

product.

3886PP DuPont Page 4

Material Safety Data Sheet

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EXPOSURE CONTROLS/PERSONAL PROTECTION

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Engineering Controls

Keep container tightly closed.

Keep away from heat and flames.

Personal Protective Equipment

EYE/FACE PROTECTION

Wear safety glasses or coverall chemical splash goggles.

RESPIRATOR

Where the potential exists for exposure to decomposition

products due to heating or elevated temperatures, wear

NIOSH approved respiratory protection as appropriate.

PROTECTIVE CLOTHING

Where there is potential for skin contact have available

and wear as appropriate, impervious gloves, apron, pants,

and jacket.

Exposure Guidelines

Applicable Exposure Limits

PTFE

PEL (OSHA) : None Established

TLV (ACGIH) : None Established

AEL * (DuPont) : 10 mg/m3, 8 Hr. TWA, total dust

5 mg/m3, 8 Hr. TWA, respirable dust

* AEL is DuPont’s Acceptable Exposure Limit. Where governmentally

imposed occupational exposure limits which are lower than the AEL

are in effect, such limits shall take precedence.

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PHYSICAL AND CHEMICAL PROPERTIES

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Physical Data

Melting Point : 320 C (608 F)

Solubility in Water : Negligible WT%

pH : Neutral

Odor : Odorless

Form : Solid, waxy grease

Color : White

Specific Gravity : 1.89-1.93 @ 24 deg C (75 deg F)

3886PP DuPont Page 5

Material Safety Data Sheet

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STABILITY AND REACTIVITY

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Chemical Stability

Stable.

Incompatibility with Other Materials

None reasonably foreseeable.

Polymerization

Polymerization will not occur.

Other Hazards

Decomposition: Heating above 260-290 deg C (500-554 deg F)

may form potentially toxic fluorine compounds.

Depolymerization may occur in the presence of some metal

oxides at temperatures above 288 deg C (550 deg F).

Decomposition occurs at increasing rates as temperature

is raised above 355 deg C (670 deg F).

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TOXICOLOGICAL INFORMATION

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Animal Data

Perfluoroalkylether:

Inhalation 4 hour ALC: 19.54 mg/l in rats

Skin absorption ALD: >17,000 mg/kg in rats

Oral ALD: >25,000 mg/kg in rats

The product contains a mild eye irritant. A single

inhalation exposure to perfluoroalkylether caused

nonspecific effects such as respiratory irritation. Toxic

effects described in animals exposed to decomposition

products of perfluoroalkylether formed above 260 degC (500

degF) include lung irritation, irregular respiration,

tremors and increased liver weight. Pulmonary edema and

death occurred in rats exposed to the decomposition products

of perfluoroalkylether formed at around 290 degC (554 degF).

A single inhalation exposure to PTFE caused irritation of

the lungs. A repeated ingestion exposure caused no

significant toxicological effects. Long-term ingestion

exposure caused altered white blood cell count.

3886PP DuPont Page 6

Material Safety Data Sheet

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DISPOSAL CONSIDERATIONS

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Waste Disposal

Treatment, storage, transportation, and disposal must be in

accordance with applicable Federal, State/Provincial, and Local

regulations. Do not flush to surface water or sanitary sewer

system.

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TRANSPORTATION INFORMATION

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Shipping Information

DOT/IMO/IATA

Proper Shipping Name : Not Regulated

Shipping Containers:

2, 8 oz. polyethylene tubes

1 lb. double wall jars (polypropylene inner; polystyrene

outer)

5-15 lb. polyethylene pails

50-75 lb. white high density polyethylene pails

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REGULATORY INFORMATION

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U.S. Federal Regulations

TSCA Inventory Status : Reported/Included.

TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312

Acute : Yes

Chronic : No

Fire : No

Reactivity : No

Pressure : No

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OTHER INFORMATION

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NFPA, NPCA-HMIS

NPCA-HMIS Rating

Health : 1

Flammability : 0

Reactivity : 0

Personal Protection rating to be supplied by user depending on use

conditions.

3886PP DuPont Page 7

Material Safety Data Sheet

(Continued)

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The data in this Material Safety Data Sheet relates only to the

specific material designated herein and does not relate to use in

combination with any other material or in any process.

Responsibility for MSDS : MSDS Coordinator

DuPont Chemical Solutions Enterprise

Address : Wilmington, Delaware 19898

Telephone : 800-441-7515

# Indicates updated section.

This information is based upon technical information believed to be

reliable. It is subject to revision as additional knowledge and

experience is gained.

End of MSDS