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Liquid Polysufide Polymer

MATERIAL SAFETY DATA SHEET
LP2C DLC?A
Date Revised: September 8, 2006
SECTION I - PRODUCT AND COMPANY IDENTIFICATION
HMIS RATING
TRADE NAME: LP2C DLC-A HEALTH 1
FLAMMABILITY 1
CHEMICAL NAME: Liquid Polysulfide Polymer on Silicon Dioxide
REACTIVITY 0

Company: NATROCHEM, INC.
P.O. Box 1205
Savannah, GA 31402-1205

Telephone Numbers:
Transportation Emergencies:
CHEMTREC (U.S.A.): (800) 424-9300 (24 hours)
CHEMTREC (International): (202) 483-7616 (24 hours, call collect)
Product Information: (912) 236-4464 (EST, 8:00AM ?? 4:00PM M-F)

SECTION II - INGREDIENTS

INGREDIENT CAS REGISTRY
Liquid polysulfide polymers 68611-50-7
Silicon Dioxide 7631-86-9

SECTION III - PHYSICAL DATA

Boiling Point: N/DA Specific Gravity: 1.44
Vapor Pressure (mm Hg): N/A Percent Volatiles: <1.0
Vapor Density (Air = 1): N/A Evaporation Rate: <1.0
Solubility in Water: <0.01g/l
Appearance and Odor: Off-white, free flowing powder with mercaptan odor.

SECTION IV - FIRE & EXPLOSION DATA

FLASH POINT (Method Used): >200o C (Open Cup)
FLAMMABLE LIMITS: N/A
AUTOIGNITION TEMPERATURE: N/A
EXTINGUISHING MEDIA: Small fires: Use water (spray; fog; or, in some instances, stream), foam, dry
chemical, or carbon dioxide. Large fires: use water (spray or stream) or standard foam.

SPECIAL FIRE FIGHTING PROCEDURES: Fire fighters and others who may be exposed to the products of
combustion should be equipped with NIOSH approved positive pressure self-contained breathing apparatus
(SCBA) and full protective clothing.

UNUSUAL FIRE & EXPLOSION HAZARDS: None Known.

SECTION V - PERMISSIBLE EXPOSURE LIMITS

Silicon Dioxide: OSHA: 6 mg/m3 (total dust), 8 hr. TWA; 29 CFR 1910.1000 (rev. 3/1/89). PPG Internal
Permissible Exposure Limit (IPEL); Synthetic Precipitated Silicate: 5 mg/m3 (respirable dust), 8 hr. TWA.
Polysulfide: ACGIH-TLV: No regulated ingredients. OSHA-PEL: No regulated ingredients.
LP2C DLC-A NATROCHEM MSDS SECTION VI - HEALTH HAZARD DATA

CHRONIC HEALTH EFFECTS: An epidemiological study was conducted which included 165 precipitated silica
workers who had been exposed for an average of 18 years. No adverse effects were noted in complete medical
examination (including chest roentgenograms) of these workers. Pulmonary function decrements were correlated
only with smoking and age but not with the degree or duration of dust exposure. Laboratory studies have also
been conducted in small animals via inhalation to levels of precipitated silica dust of up to 126 mg/m3 for periods
from six months to two years. Although precipitated silica was temporarily deposited in the animal??s lungs, most
of the deposited material was cleared soon after the dust exposure ended. The results of all studies performed
by, or known to, PPG indicate a very low order of pulmonary activity for synthetic precipitated silica.

PRIMARY ROUTE OF ENTRY- Inhalation, eyes and skin.

CHEMICAL LISTED AS CARCINOGEN OR POTENTIAL CARCINOGEN: None.
NTP: No IARC: No OSHA: No

EFFECTS OF EXPOSURE-

EYES- Mildly irritating. Excessive contact with powder can cause drying of mucous membranes of eyes due to
absorption of moisture and oils.

SKIN- Mildly irritating. Prolonged or repeated contact may cause skin irritation.

INHALATION- Nuisance dust. Excessive contact with powder can cause drying of mucous membranes of nose
and throat due to absorption of moisture and oils. This material can also cause nasal irritation and nosebleeds.
Processing vapors may cause respiratory tract irritation.

INGESTION- May cause nausea, vomiting, pain, and stomach upset (e.g., diarrhea).

MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE- Persons with breathing problems or lung disease
should not work in dusty areas unless a physician approves and certifies their fitness to wear respiratory
protection.

SECTION VII - EMERGENCY & FIRST AID PROCEDURES

EYE CONTACT: Immediately rinse with clean water for 15 minutes. Retract eyelids often. If irritation persists,
seek medical attention.

SKIN CONTACT: Immediately remove contaminated clothing. Wash skin thoroughly with mild soap and water.
Flush with lukewarm water for 15 minutes. Seek medical attention if ill effect or irritation develops.

INHALATION: If overcome by exposure, remove victim to fresh air. If symptoms develop, seek immediate
medical attention. If not breathing, give artificial respiration, preferably mouth to mouth.

INGESTION: Seek medical attention. DO NOT induce vomiting except in the presence of, or on the orders of a
doctor. Never give anything by mouth to an unconscious person.

NOTE TO PHYSICIAN: Treatment should be directed at preventing absorption, administering to the symptoms
as they occur, and providing supportive therapy.
LP2C DLC-A NATROCHEM MSDS SECTION VIII - REACTIVITY DATA

STABILITY: Stable.

MATERIALS TO AVOID- Avoid alteration of product properties before reuse. Calcining, which may result in
crystalline formation or mixing with additives may alter toxicological properties. Keep away from oxidizing agents
and acids, and strong alkali. .

CONDITIONS TO AVOID- Avoid high temperature treatments, such as calcining (>800oC).

HAZARDOUS DECOMPOSITION PRODUCTS: Formaldehyde and/or other aldehydes, oxides of sulfur, smoke,
soot, and toxic fumes (e.g. oxides of carbon). Low molecular weight hydrocarbons and hydrogen sulfide.

HAZARDOUS POLYMERIZATION: Will not occur.

SECTION IX - SPILL OR LEAK PROCEDURES

STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: MINIMIZE SPILL AREA. Vacuum
spill material and place in closed plastic bags for disposal.

WASTE DISPOSAL METHOD: In accordance with local, state, and federal regulations.

SECTION X - SPECIAL PROTECTION INFORMATION

RESPIRATORY PROTECTION: Make emergency shower and eye wash stations in available to the work area.
Use a respirator such as 3M 9900 or equivalent.

VENTILATION: Provide explosion proof ventilation as required to control airborne dust levels. The sum total of
all ingredients may emit vapors during normal processing. All possible health effects are not known and individual
sensitivities will vary. Effective exhaust ventilation should always be provided to draw dust, fumes and vapors
away from workers to prevent routine inhalation. Ventilation should be adequate to maintain ambient workplace
atmosphere below the limits listed in Section V.

PROTECTIVE GLOVES: Impervious gloves to protect against contact with product.

EYE PROTECTION: Safety goggles.

OTHER PROTECTIVE EQUIPMENT: Protective clothing, eye wash station, safety shower.

SECTION XI - SPECIAL PRECAUTIONS

HANDLING AND STORAGE: Handling can create explosive dust clouds. Eliminate ignition sources, use
explosive proof equipment. Conveying and processing equipment should be spark-proof, well bonded and
grounded. Avoid dust accumulations.

OTHER PRECAUTIONS: Wash with soap and water before eating, drinking, smoking, or using toilet facilities.
Launder contaminated clothing before reuse.
LP2C DLC-A NATROCHEM MSDS SECTION XII - ENVIRONMENTAL INFORMATION

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):

CAS REGISTRY # CHEMICAL NAME PERCENT BY WEIGHT

NONE.

This information must be included in all MSDS??s that are copied and distributed for this material.

THE FOLLOWING INFORMATION MAY BE USEFUL IN COMPLYING WITH VARIOUS STATE AND FEDERAL
LAWS AND REGULATIONS UNDER VARIOUS ENVIRONMENTAL STATUES:

Reportable Quantity (RQ), EPA Regulation 40 CFR 302 (CERCLA Section 102):
No RQ for product or any constituent greater than 1% or 0.1% (carcinogen).

Threshold Planning Quantity (TPQ), EPA Regulation 40 CFR 355 (SARA Sections 301-313):
No TPQ for product or any constituent greater than 1% or 0.1% (carcinogen).

Hazardous Chemical Reporting, EPA Regulation 40 CFR 370 (SARA Sections 311-312):

Silicon Dioxide- 40% - Acute Hazard

Harmful to aquatic organisms. The components of this product are included on the TSCA Chemical Substance
Inventory.

TRANSPORTATION: Not regulated.

SECTION XIII - OTHER INFORMATION

Revision Note: Added CAS number for LP2C. Updated flash point value.

Prepared by: Craig Moore

N/A = Not applicable N/D = Not determined N/DA = No Data Available
N/E = Not established

The information given in this MSDS was obtained from sources which we believe are reliable. However, since
data, safety standards, and government regulations are subject to change and the conditions of handling and use,
or misuse are beyond our control, Natrochem, Inc. makes no warranty express or implied, with respect to the
completeness or continuing accuracy of the information contained herein and disclaims all liability for reliance
thereon.

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