MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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DUROCK鈩? Latex-Modified Flexible Thin-Set High
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DUROCK Latex Modified Flexible Thin Set High Performance Mortar Gray 14916005v2
SECTION 1
CHEMICAL PRODUCT AND IDENTIFICATION
United States Gypsum Company Product Safety: 1 (800) 507-8899
550 West Adams Street www.usg.com
Chicago, Illinois 60661-3637 Version Date: January 1, 2008
A Subsidiary of USG Corporation Version: 2
PRODUCT(S) DUROCK鈩? Latex-Modified Flexible Thin-Set High Performance Mortar Gray
CHEMICAL FAMILY /
GENERAL Mortar
CATEGORY
SYNONYMS Mortar
SECTION 2
HAZARD IDENTIFICATION
EMERGENCY OVERVIEW:
螖WARNING!
This product is not expected to produce any unusual hazards during normal use. Exposure to high dust levels may
irritate the skin, eyes, nose, throat, or upper respiratory tract. Respirable crystalline silica is classified as a carcinogen
and long term breathing of respirable crystalline silica dust can cause silicosis and/or lung cancer. Take necessary
measures to avoid exposure to respirable crystalline silica. Portland cement is a nuisance dust. However, portland
cement is strongly alkaline and can cause severe injury. Contact with eyes or skin can cause irritation and possible
irreversible tissue damage, corrosion damage, chemical burning and corneal damage. Wear eye and skin protection.
POTENTIAL HEALTH EFFECTS (See Section 11 for more information)
ACUTE :
Exposure to dust generated during the handling or use of the product may irritate eyes, skin, nose,
throat, and upper respiratory tract. Persons subjected to large amounts of this dust will be forced to
leave area because of nuisance conditions such as coughing, sneezing and nasal irritation. Labored
breathing may occur after excessive inhalation. If respiratory symptoms persist, consult physician.
Inhalation
Inhalation of portland cement dust can irritate or burn the nose, throat, and mucous membrane of the
upper respiratory tract. Signs of excessive exposure to this dust include shortness of breath and
reduced pulmonary function. If respiratory symptoms persist, consult physician.
Dust can cause mechanical irritation of eyes. If burning, redness, itching, pain or other symptoms
persist or develop, consult physician. Portland Cement is a strongly alkaline material and is very
irritating to eyes. The extent of damage depends on duration of contact. Rapid response is very
Eyes important to prevent significant damage to the eye (See Section 4, First Aid Measures). Portland
cement can cause burns and cornea damage that may result in permanent damage with risk of
blindness. Contact lenses should not be worn when working with portland cement. If burning, redness,
itching, pain or other symptoms persist or develop, consult physician.
Skin None known.
Ingestion None known.
CHRONIC:
Due to the sand content of this product, exposures to respirable crystalline silica might be possible
Inhalation
during the normal use of this product. Actual exposure levels must be determined by workplace
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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hygiene testing. Prolonged and repeated exposure to airborne free respirable crystalline silica can
result in lung disease (i.e., silicosis) and/or lung cancer. The development of silicosis may increase the
risks of additional health effects. The risk of developing silicosis is dependent upon the exposure
intensity and duration.
Eyes None known.
Skin None known.
Ingestion None known.
TARGET ORGANS: Eyes, skin and respiratory system.
PRIMARY ROUTES OF ENTRY: Inhalation, eyes and skin contact.
CARCINOGENICITY CLASSIFICATION OF INGREDIENT(S) All substances listed are associated with the nature of
the raw materials used in the manufacture of this product and are not independent components of the product
formulation. All substances, if present, are at levels well below regulatory limits. See Section 11: Toxicology
Information for detailed information.
MATERIAL IARC NTP ACGIH CAL- 65
Crystalline silica 1 1 A2 Listed
Vinyl Acetate Monomer 2B Not Listed A3 Not Listed
Acetaldehyde 2B 2 A3 Listed
Formaldehyde 1 2 A2 Listed
IARC - International Agency for Research on Cancer: 1- Carcinogenic to humans; 2A 鈥? Probably carcinogenic to
humans; 2B 鈥? Possibly carcinogenic to humans; 3 - Not classifiable as a carcinogen; 4 鈥? Probably not a carcinogen
NTP 鈥? National Toxicology Program (Health and Human Services Dept., Public Health Service, NIH/NIEHS): 1-
Known to be carcinogen; 2- Anticipated to be carcinogens
ACGIH 鈥? American Conference of Governmental Industrial Hygienists: A1 鈥? Confirmed human carcinogen; A2 鈥?
Suspected human carcinogen; A3 鈥? Animal carcinogen; A4 - Not classifiable as a carcinogen; A5 鈥? Not suspected as
a human carcinogen
CAL-65 鈥? California Proposition 65 鈥淐hemicals known to the State of California to Cause Cancer鈥?
Respirable crystalline silica: IARC: Group 1 carcinogen, NTP: Known human carcinogen.
POTENTIAL ENVIRONMENTAL EFFECTS: Portland cement is expected to be toxic to fish due to its high alkalinity
(pH > 12). Discharge of large quantities directly into waterways would be expected to cause significant fish kills. (See
Section 12 for more information.)
SECTION 3
COMPOSITION, INFORMATION ON INGREDIENTS
MATERIAL WT% CAS #
Sand (Crystalline Silica) 30-60 14808-60-7
Portland Cement 30-60 65997-15-1
Ethylene Vinyl Acetate Copolymer <5 24937-78-8
Calcium Formate <2 544-17-2
All ingredients of this product are included in the U.S. Environmental Protection Agency鈥檚 Toxic Substances Control
Act Chemical Substance Inventory and the Canadian Domestic Substances List (DSL).
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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SECTION 4
FIRST AID MEASURES
FIRST AID PROCEDURES
Remove to fresh air. Leave the area of exposure and remain away until coughing and other symptoms
Inhalation
subside. Other measures are usually not necessary, however if conditions warrant, contact physician.
In case of contact, do not rub or scratch your eyes. Due to portland cement content in this product, if eye
contact occurs immediately flush eyes with copious amounts of water, occasionally lifting the lower and
Eyes
upper lids. Get medical attention immediately. Contact lenses should not be worn when working with
this material.
Because of the potential of chemical burns due to the portland cement content of this product, flush
exposed skin with copious amounts of water for at least 15 minutes depending on concentration, amount
and duration of exposure. Wash with mild soap and water. Immediately remove all contaminated
Skin clothing, including footwear. Launder clothing before reuse. If irritation or pain persists get medical
attention immediately. A commercially available hand lotion may be used to treat dry skin areas. If skin
has become cracked, take appropriate action to prevent infection and promote healing. If irritation
persists, consult physician.
Due to the alkalinity caused by the portland cement content of this product, get medical attention
Ingestion
immediately.
MEDICAL CONDITIONS WHICH MAY BE AGGRAVATED: Pre-existing upper respiratory and lung diseases such
as, but not limited to, bronchitis, emphysema and asthma. Pre-existing skin diseases such as, but not limited to,
rashes and dermatitis. Some individuals with unusual hypersensitivity to hexavalent chromium (chromium+6) salts
may exhibit an allergic response to portland cement, due to trace amounts of chromium in the portland cement. The
response may appear in a variety of forms ranging from a mild rash to severe skin ulcers. Sensitized individuals may
react immediately upon contact and others may first experience this effect after years of contact with portland cement
products.
NOTES TO PHYSICIAN: Skin irritation may occur hours or days after the time of portland cement exposure. The
main types of skin reactions seen are dermatitis of the hands, forearms, and feet seborrheic eczema, stasis
dermatitis, and, occasionally exfoliative dermatitis.
SECTION 5
FIRE FIGHTING MEASURES
General Fire Hazards None known
Extinguishing Media Water or use extinguishing media appropriate for surrounding fire.
Special Fire Fighting Procedures Wear appropriate personal protective equipment. See section 8.
Unusual Fire/ Explosion Hazards None known
Above 175潞 C 鈥? polyvinyl acetate may decompose to H2O, CO2, CO, and
Hazardous Combustion Products
acetic acid, could produce vinyl acetate monomers.
Flash Point Auto Ignition
Not Determined Not Applicable
Method Used Not Applicable Flammability
Not Applicable
Classification
Upper Flammable Limit (UFL) Not Determined
Lower Flammable Limit (LFL) Rate of Burning
Not Determined Not Applicable
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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SECTION 6
ACCIDENTAL RELEASE MEASURES
CONTAINMENT: No special precautions. Wear appropriate personal protective equipment. See section 8.
CLEAN-UP: Use normal clean up procedures. No special precautions.
DISPOSAL: Follow all local, state, provincial and federal regulations. Never discharge large releases directly into
sewers or surface waters.
SECTION 7
HANDLING AND STORAGE
HANDLING: Avoid dust contact with eyes. Wear the appropriate eye protection against dust (See Section 8).
Minimize dust generation and accumulation. Avoid breathing dust. Wear the appropriate respiratory protection
against dust in poorly ventilated areas and if TLV is exceeded (see Sections 2 and 8). Use good safety and industrial
hygiene practices.
STORAGE: Store in a cool, dry, ventilated area away from sources of heat, moisture and incompatibilities (see
Section 10).
SECTION 8
EXPOSURE CONTROLS/PERSONAL PROTECTION
TLV (mg/m3) PEL( mg/m3)
MATERIAL WT%
Sand (Crystalline Silica) 30-60 0.025(R) 0.1(R)
Portland Cement 30-60 10 15(T)/5(R)
Ethylene Vinyl Acetate Copolymer <5 (NE) (NE)
Calcium Formate <2 (NE) (NE)
(T)鈥揟otal; (R)鈥揜espirable; (NE)-Not Established; (C)-Ceiling; (STEL)-Short-term exposure limit
(F)-Fume; (Du)-Dust; (M)-Mist
ppm-part per million; f/cc-fiber per cubic centimeter; mppcf- million particles per cubic foot
ENGINEERING CONTROLS: Provide ventilation sufficient to control airborne dust levels. If user operations generate
airborne dust, use ventilation to keep dust concentrations below permissible exposure limits. Where general
ventilation is inadequate, use process enclosures, local exhaust ventilation, or other engineering controls to control
dust levels below permissible exposure limits.
RESPIRATORY PROTECTION: Wear a NIOSH/MSHA-approved respirator equipped with particulate cartridges when
dusty in poorly ventilated areas, and if TLV is exceeded. A respiratory program that meets OSHA's 29 CFR 1910.134
and ANSI Z88.2 requirements must be followed whenever workplace conditions warrant a respirator's use. If
engineering controls are not possible, wear a properly fitted NIOSH/MSHA-approved particulate respirator.
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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OTHER PERSONAL PROTECTIVE EQUIPMENT:
Due to portland cement content in this porduct, wear safety glasses with side shields or goggles for eye
protection to avoid irritation and severe chemical burns of the eye. Facilities storing or using this material
Eye/Face
should be equipped with an adequate number of eyewash facilities and safety showers. Contact lenses
should not be worn when working with portland cement.
Skin Wear gloves and protective clothing to prevent repeated or prolonged skin contact.
Selection of Personal Protective Equipment will depend on environmental working conditions and
General
operations.
SECTION 9
PHYSICAL AND CHEMICAL PROPERTIES
Appearance Vapor Density (Air = 1)
Gray Not Applicable
Odor Specific Gravity (H2O = 1)
Slight odor 0-2%
Odor Threshold Solubility in water (g/100g)
Not Determined 0-2%
Physical State Partition Coefficient
Solid/ Powder Not Determined
pH @ 25 潞 C Auto-ignition Temp
8-10 Not Determined
Melting Point Decomposition Temp
Not Applicable Not Determined
Freezing Point Viscosity
Not Applicable Not Applicable
Boiling Point Particle Size
Not Applicable Not Determined
Flash Point Bulk Density
Not Determined 2.68 g/cc
Evaporation Rate (BuAc = 1) Molecular Weight
Not Applicable Mixture
Upper Flammable Limit (UFL) VOC Content
Not Determined Zero
Lower Flammable Limit (LFL) Percent Volatile
Not Determined Zero
Vapor Pressure (mm Hg) Not Applicable
SECTION 10
CHEMICAL STABILITY AND REACTIVITY
STABILITY Stable.
CONDITIONS TO AVOID Contact with incompatibles (see below).
Crystalline silica in contact with powerful oxidizing agents, such as
fluorine, chlorine trifluoride and oxygen difluoride, may cause fires.
INCOMPATIBILITY
Crystalline silica will dissolve in hydrofluoric acid and produce a
corrosive gas 鈥? silicon tetrafluoride.
HAZARDOUS POLYMERIZATION None known.
Above 175潞 C 鈥? polyvinyl acetate may decompose to H2O, CO2, CO,
HAZARDOUS DECOMPOSITION
and acetic acid, could produce vinyl acetate monomers.
SECTION 11
TOXICOLOGICAL INFORMATION
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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ACUTE EFFECTS: None known.
CHRONIC EFFECTS / CARCINOGENICITY:
Sand/ Crystalline Silica: Chronic overexposure to airborne free respirable crystalline silica can result in lung disease
(i.e., silicosis) and/or lung cancer. The development of silicosis may increase the risks of additional health effects.
The risk of developing silicosis is dependent upon the exposure intensity and duration. The development of silicosis
may increase the risks of additional health effects. The risk of developing silicosis is dependent upon the exposure
intensity and duration.
In June, 1997, IARC classified crystalline silica (quartz and cristobalite) as a human carcinogen. In making the
overall evaluation, the IARC Working Group noted that carcinogenicity in humans was not detected in all industrial
circumstances studied. Carcinogenicity may be dependent on inherent characteristics of the crystalline silica or on
external factors affecting its biological activity or distribution of its polymorphs.
IARC states that crystalline silica inhaled in the form of quartz or cristobalite from occupational sources is carcinogenic
to humans (Group 1).
Portland Cement: NIOSH conducted a portland cement worker study, 鈥淭he Mortality of U.S. Portland Cement and
Quarry Workers鈥?, March 1985, which found 鈥淭here is no excess mortality from all causes of death, lung cancer, non-
malignant respiratory disease, or ischemic heart disease鈥? among the workers studied.
Vinyl acetate/acetaldehyde/formaldehyde: Ethylene vinyl acetate polymer is a common emulsion polymer most
familiar as the component of ordinary white glue which exhibits the 鈥渟ticky鈥? characteristic. Ethylene vinyl acetate
polymer is not classified as a carcinogen by IARC, NTP or ACGIH. Trace amounts of residual vinyl acetate
monomers, acetaldehyde and formaldehyde may be associated with the production of ethylene vinyl acetate polymer.
Any exposure to vinyl acetate monomer, acetaldehyde, or formaldehyde is expected to remain well below OSHA
regulatory and ACGIH recommended limits during normal handling and use of this product.
SECTION 12
ECOLOGICAL INFORMATION
ENVIRONMENTAL TOXICITY: This product has no known adverse effect on ecology. Portland cement is expected
to be toxic to fish due to its high alkalinity (pH > 12). Discharge of large quantities directly into waterways would be
expected to cause significant fish kills.
Ecotoxicity value Not determined.
SECTION 13
DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD: Dispose of material in accordance with federal, state, and local regulations. Never
discharge directly into sewers or surface waters. Consult with environmental regulatory agencies for guidance on
acceptable disposal practices.
SECTION 14
TRANSPORT INFORMATION
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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U.S. DOT INFORMATION: Not a hazardous material per DOT shipping requirements. Not classified or regulated.
Shipping Name Same as product name.
Hazard Class Not classified.
UN/NA # None. Not classified.
Packing Group None.
Label (s) Required Not applicable.
GGVSec/MDG-Code Not classified.
ICAO/IATA-DGR Not applicable.
RID/ADR None.
ADNR None.
SECTION 15
REGULATORY INFORMATION
UNITED STATES REGULATIONS
All ingredients of this product are included in the U.S. Environmental Protection Agency鈥檚 Toxic Substances Control
Act Chemical Substance Inventory.
CERCLA
Sec. 112
3 3 3
RCRA
MATERIAL WT% 0 0 1
Code
CAA
2 4 3
Sand (Crystalline Silica) 30-60 NL NL NL NL NL NL
Portland Cement 30-60 NL NL NL NL NL NL
Ethylene Vinyl Acetate Copolymer <5 NL NL NL NL NL NL
Calcium Formate <2 NL NL NL NL NL NL
Key : NL = Not Listed
SARA Title III Section 302 (EPCRA) Extremely Hazardous Substances: Threshold Planning Quantity (TPQ)
SARA Title III Section 304 (EPCRA) Extremely Hazardous Substances: Reportable Quantity (RQ)
SARA Title III Section 313 (EPCRA) Toxic Chemicals: X= Subject to reporting under section 313
CERCLA Hazardous Substances: Reportable Quantity (RQ)
CAA Section 112 (r) Regulated Chemicals for Accidental Release Prevention: Threshold Quantities(TQ)
RCRA Hazardous Waste: RCRA hazardous waste code
CANADIAN REGULATIONS
This product has been classified in accordance with the hazard criteria of Controlled Product regulations and the
MSDS contains all the information required by the Controlled Products Regulations. All ingredients of this product are
included in the Canadian Domestic Substances List (DSL).
WHMIS
MATERIAL WT% IDL Item #
Classification
Sand (Crystalline Silica) 30-60 1406 Not Listed
Portland Cement 30-60 Not Listed E
Ethylene Vinyl Acetate Copolymer <5 Not Listed Not Listed
Calcium Formate <2 Not Listed Not Listed
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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IDL Item#: Canadian Hazardous Products Act 鈥? Ingredient Disclosure List Item #
WHMIS Classification: Workplace Hazardous Material Information System
Risk and Safety Phrases defined by European Union Directive 67/548/EEC (Annex III and IV)
R-Phrase(s): R36/37/38
S-Phrase(s): S22 S2
SECTION 16
OTHER INFORMATION
Label Information
螖 WARNING!
Direct contact can cause severe irritation to the eyes and skin. Avoid contact with eyes and skin. Wear eye
protection, gloves, long-sleeved shirts and pants to prevent direct contact. If eye contact occurs, immediately flush
thoroughly with water for 15 minutes and seek medical advice. Inhalation of dust may cause irritation to nose, throat
and respiratory tract. Long-term breathing of respirable crystalline silica dust can cause permanent lung damage
and/or cancer. Avoid breathing dust. Use in a well-ventilated area or provide sufficient local ventilation. If dusty,
wear a NIOSH/MSHA-approved dust respirator. Wash thoroughly with soap and water after use. Do not ingest. If
ingested, call physician. Product safety information: (800) 507-8899 or www.usg.com.
KEEP OUT OF REACH OF CHILDREN.
INFORMATION FOR HANDLING AND IDENTIFICATION OF CHEMICAL HAZARDS
0 = Minimal Hazard
*
HEALTH 3
0
NFPA Ratings: HIMS Ratings: 1 = Slight Hazard
0
FLAMMABILITY
3 0
Health: 3 Health: 3 2 = Moderate Hazard
0
PHYSICAL HAZARD
Fire: 0 Fire: 0 3 = Serious Hazard
E
PERSONAL PROTECTION
Reactivity: 0 Reactivity: 0 4 = Severe Hazard
E 鈥? Safety glasses, gloves and dust respirator
Key/Legend
TLV Threshold Limit Value
PEL Permissible Exposure Limit
CAS Chemical Abstracts Service (Registry Number)
NIOSH National Institute for Occupational Safety and Health
MSHA Mine Safety and Health Administration
OSHA Occupational Health and Safety Administration
ACGIH American Conference of Governmental Industrial Hygienists
IARC International Agency for Research on Cancer
DOT United States Department of Transportation
EPA United States Environmental Protection Agency
NFPA National Fire Protection Association
HMIS Hazardous Materials Identification System
MATERIAL SAFETY DATA SHEET MSDS #14-916-005
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PPE Personal Protection Equipment
TSCA Toxic Substances Control Act
DSL Canadian Domestic Substances List
NDSL Canadian Non-Domestic Substances List
SARA Superfund Amendments and Reauthorization Act of 1986
CAA Clean Air Act
Emergency Planning & Community Right-to-know Act
EPCRA
RCRA Resource Conservation and Recovery Act
CERCLA Comprehensive Environmental Response, Compensation and Liability Act of 1980
UN/NA# United Nations/North America number
CFR Code of Federal Regulations
WHMIS Workplace Hazardous Material Information System
Prepared by:
Product Safety
USG Corporation
550 West Adams Street
Chicago, IL 60661-3637
The information contained in this document applies to this specific material as supplied. It may not be valid for this
material if it is used in combination with any other materials. It is the user鈥檚 responsibility to satisfy oneself as to the
suitability and completeness of this information for his/her own particular use.
END
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