MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 1 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
CGC Inc. Product Safety: 1 (800) 507-8899
350 Burnhamthorpe Road West www.cgcinc.com
Mississauga, Ontario L5B 3J1 Version Date: April 25, 2003
(905) 803-5600 Version: 1
A Subsidiary of USG Corporation
SECTION 1
CHEMICAL PRODUCT AND IDENTIFICATION
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
PRODUCT:
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels FIRECODE庐 Core, Type X
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Liner Panels
SYNONYM: Gypsum board
CHEMICAL FAMILY: Gypsum (Calcium Sulfate Dihydrate, CaSO4 鈥? 2H2O)
SECTION 2
COMPOSITION, INFORMATION ON INGREDIENTS
TLV (mg/m3) PEL( mg/m3)
MATERIAL WT% CAS NUMBER
Gypsum >80 10 15(T)/5(R) 13397-24-5
or Calcium Sulfate Dihydrate 10 15(T)/5(R) 10101-41-4
Recycled Paper (cellulose) <10 10 15(T)/5(R) 9004-34-6
Starch <5 10 15(T)/5(R) 9005-25-8
Parrafin Wax <2 2(fume) (NE) 8002-74-2
Sodium Pyrithione <1 (NE) (NE) 3811-73-2
Fibrous Glass (continuous filament, textile grade) <1 (NE) (NE) 65997-17-3
Crystalline Silica (quartz)1 <1 0.05(R) 0.1(R) 14808-60-7
(T) 鈥? Total (R) 鈥? Respirable (NE) 鈥? Not Established
1
Respirable crystalline silica: IARC: Group 1 carcinogen, NTP: Known human carcinogen. The weight percent for silica
represents total quartz and not the respirable fraction. The concentration of respirable crystalline silica measured in bulk
samples of USG gypsum was less than 0.1 Wt.%. Industrial hygiene testing, following the NIOSH Method 7500, did not
detect respirable crystalline silica in dust created during cutting of USG gypsum wallboard panels by both the
recommended score and snap technique and with the use of a power saw in a 10鈥? x 10鈥? room.
Food and Drug Administration [CFR Title 21, v.3, sec 184.1230] 鈥? Calcium Sulfate is Generally Recognized
as Safe (GRAS).
All ingredients of this product are included in the U.S. Environmental Protection Agency鈥檚 Toxic Substances Control Act
Chemical Substance Inventory. All components of this product are included in the Canadian Domestic Substances List
(DSL).
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 2 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 3
HAZARD IDENTIFICATION
INFORMATION FOR HANDLING AND IDENTIFICATION OF CHEMICAL HAZARDS
0 = Minimal Hazard
*0
HEALTH
0
NFPA Ratings: HIMS Ratings: 1 = Slight Hazard
0
FLAMMABILITY
0
0
Health: 0 Health: *0 2 = Moderate Hazard
PHYSICAL HAZARD 0
Fire: 0 Fire: 0 3 = Serious Hazard
PERSONAL PROTECTION E
Reactivity: 0 Reactivity: 0 4 = Severe Hazard
Personal Protection: Use eye protection. Use gloves and NIOSH/MSHA-approved respiratory protection when required.
*Respirable crystalline silica can cause lung disease and/or cancer.
EMERGENCY OVERVIEW
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.
POTENTIAL HEALTH EFFECTS
ACUTE:
Eyes: Airborne dust or direct contact can cause mechanical irritation of eyes. If burning, redness, itching, pain or other
symptoms persist or develop, consult physician.
Skin: No toxic effects from powdered gypsum are noticed where air contains contaminate to excess. This material
exhibits some affinity for moisture, and frequent exposures may have a drying effect on the skin. Possible itching and
irritation may be experienced. This may lead to dermatitis. No penetration of intact skin.
Inhalation: Inhalation of dust can irritate the nose, throat, and the 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.
Ingestion: Unlikely to occur, but may cause gastric disturbances if swallowed. Gypsum is non-toxic; however, ingestion
of a sufficient quantity could lead to mechanical obstruction of the gut, especially the pyloric region. See First Aid
Measures - Ingestion (Section 4).
CHRONIC:
Inhalation: The concentration of respirable crystalline silica measured in bulk samples of USG gypsum was less than
0.1 Wt.%. Industrial hygiene testing, following the NIOSH Method 7500, did not detect respirable crystalline silica in dust
created during cutting of USG gypsum wallboard panels by both the recommended score and snap technique and with
the use of a power saw in a 10鈥? x 10鈥? room. Exposures to respirable crystalline silica are not expected during the normal
use of this product; however, actual levels must be determined by workplace hygiene testing.
Gypsum wallboard panels do not release respirable dust in their installed state and therefore do not present any known
health hazards when installed and properly maintained.
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: Prolonged and repeated exposure may dry skin and possibly lead to dermatitis.
Ingestion: No known effects.
TARGET ORGANS: Eyes, skin and respiratory system.
PRIMARY ROUTES OF ENTRY: Inhalation, eyes and skin contact.
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 3 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 4
FIRST AID MEASURES
FIRST AID PROCEDURES
Eyes: Flush thoroughly with water for 15 minutes to remove particles. If irritation persists, consult physician.
Skin: Wash with mild soap and water. 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.
Inhalation: Remove to fresh air. Leave the area of dust exposure and remain away until coughing and other symptoms
subside. Other measures are usually not necessary, however if conditions warrant, contact physician.
Ingestion: No harmful effects expected. No specific recommendations. Calcium sulfate is nontoxic; however, ingestion
of a sufficient quantity could lead to mechanical obstruction of the gut, especially the pyloric region. If gastric disturbance
occurs, call physician. Drinking gelatin solutions or large volumes of water may delay setting.
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.
SECTION 5
FIRE FIGHTING MEASURES
Not expected to burn.
General Fire Hazards:
Water or use extinguishing media appropriate for surrounding fire.
Extinguishing Media:
Wear appropriate personal protective equipment (See section 8).
Special Fire Fighting Procedures:
None
Unusual Fire and Explosion Hazards:
Above 1450潞 C - decomposes to calcium oxide (CaO) and sulfur dioxide
Hazardous Combustion Products:
(SO2). Organic material in the panels can produce oxides of carbon.
None Known Not Applicable
Flash Point: Auto Ignition:
Not Applicable Not Applicable, may act
Method Used: Flammability
as a fire retardant
Classification:
Not Applicable
Upper Flammable Limit (UFL):
Not Applicable Not Applicable
Lower Flammable Limit (LFL): Rate of Burning:
SECTION 6
ACCIDENTAL RELEASE MEASURES
CONTAINMENT:
No special precautions.
CLEAN-UP:
Collect the material from spillage and if not damaged or contaminated by foreign material, gypsum panels may be
reclaimed.
DISPOSAL:
Follow all local, state, provincial and federal regulations. Never discharge large releases directly into sewers or surface
waters. Trace amounts of residue can be flushed to a drain, using plenty of water.
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 4 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 7
HANDLING AND STORAGE
HANDLING:
When cutting or installing wallboard, minimize the generation and accumulation of dust. Avoid dust contact with eyes.
Wear the appropriate eye protection against dust (See Section 8). Avoid breathing dust. Wear the appropriate
respiratory protection against dust in poorly ventilated areas and if TLV is exceeded (see Sections 2 and 8).
When moving board with a forklift or similar equipment, it is essential that the equipment be rated capable of handling
the loads. The forks should always be long enough to extend completely through the width of the load. Fork spacing
between supports should be one half the length of the panels or base being handled so that a maximum of 4鈥? extends
beyond the supports on either end.
Follow traditional building practices; such as management of water away form the interior of the structure to avoid the
growth of mold, mildew and fungus. Remove any building products suspected of being exposed to sustained moisture
and considered conducive to mold growth from the jobsite.
Gypsum panels are very heavy awkward loads posing the risk of severe back injury. Use proper lifting techniques.
STORAGE:
Protect product from physical damage.
Protect from weather and prevent exposure to sustained moisture.
Gypsum Association literature recommends storing board flat to avoid damaging edges, warping the board and the
potential safety hazards of the board falling over. However, in other situations, storing the board flat may cause a
tripping hazard or exceed floor limit loads. If stacking board vertically, leave at least 4 inches from the wall to decrease
the risk of falling board and no more than 6 inches to avoid too much lateral weight against the wall.
SECTION 8
EXPOSURE CONTROLS / PERSONAL PROTECTION
ENGINEERING CONTROLS:
Good general ventilation should be sufficient to control airborne dust levels.
When cutting or installing wallboard, use ventilation to keep dust concentrations below permissible exposure limits (See
Section 2).
Where general ventilation is inadequate, use process enclosures, local exhaust ventilation, or other engineering controls
to control dust levels below permissible exposure limits (see Section 2).
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.
OTHER PERSONAL PROTECTIVE EQUIPMENT:
Eye/Face: Wear eye protection (safety glasses or goggles) to avoid particulate irritation of the eye.
Skin: Gloves or protective clothing are usually not necessary but may be desirable in specific work situations. For brief
contact, no precautions other than clean body-covering clothing should be needed. Wear gloves [chemical gloves are
not necessary, there is no chemical irritation hazard] and protective clothing to prevent repeated or prolonged skin
contact. Barrier creams or skin lotion may be applied to face, neck, wrist and hands when skin is exposed to help
prevent drying of skin.
General: Selection of Personal Protective Equipment will depend on environmental working conditions and operations.
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 5 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 9
PHYSICAL AND CHEMICAL PROPERTIES
Low to no odor
Blue paper with gray to off white core
Appearance Odor
Solid ~7
Physical State pH @ 25 潞 C
Not Applicable Not Applicable
Vapor Pressure Vapor Density (Air = 1)
Not Applicable Not Applicable
Boiling Point Vapor Pressure (mm Hg)
Not Applicable Not Applicable
Freezing Point Evaporation Rate (BuAc = 1)
1450潞 C - decomposes 0
Melting Point Percent Volatile
Not Applicable Not Applicable
Softening Point Particle Size
0.26/100g ~ 172
Solubility (H2O) Molecular Weight
~ 55 lb/ft3
Not Applicable
Viscosity Bulk Density
Specific Gravity (H20 = 1): 2.32 鈥? 2.96
SECTION 10
CHEMICAL STABILITY AND REACTIVITY
Stable.
STABILITY:
Contact with incompatibles.
CONDITIONS TO AVOID:
None known.
INCOMPATIBILITY:
Will not occur.
HAZARDOUS POLYMERIZATION:
Above 1450潞 C - calcium oxide (CaO) and sulfur dioxide SO2. Oxides of carbon.
HAZARDOUS DECOMPOSITION:
SECTION 11
TOXICOLOGICAL INFORMATION
ACUTE EFFECTS:
Gypsum paste applied experimentally to the eyes of rabbits was not an irritant.
Gypsum dust particulate has shown an irritant action on mucous membranes of the respiratory tract and eyes.
There have been anecdotal reports of conjunctivitis, chronic rhinitis, laryngitis, pharyngitis, impaired sense of smell and
taste, bleeding from the nose, and reactions of tracheal and bronchial membranes in exposed workers.
The sulfate ion has caused gastro-intestinal disturbance in humans following large oral doses.
Limited studies involving the repeated inhalation of an (unspecified) calcium sulfate failed to identify any particular target
organs in monkeys, rats and hamsters.
No evidence of mutagenicity was found in Ames bacterial tests.
LD50: Not Available for product.
LC50: Not Available for product.
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 6 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
CHRONIC EFFECTS / CARCINOGENICITY:
Crystalline silica: The concentration of respirable crystalline silica measured in bulk samples of USG gypsum was less
than 0.1 Wt.%. Industrial hygiene testing, following the NIOSH Method 7500, did not detect respirable crystalline silica in
dust created during cutting of USG gypsum wallboard panels by both the recommended score and snap technique and
with the use of a power saw in a 10鈥? x 10鈥? room. Exposures to respirable crystalline silica are not expected during the
normal use of this product; however, actual levels must be determined by workplace hygiene testing.
Gypsum wallboard panels do not release respirable dust in their installed state and therefore do not present any known
health hazards when installed and properly maintained.
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.
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).
SECTION 12
ECOLOGICAL INFORMATION
ENVIRONMENTAL TOXICITY: This product contains a small amount of sodium pyrithione that is harmful to fish,
bacteria and fungi. A large discharge of this product directly into waterways could harm aquatic life.
The beneficial use of this product as a soil amendment has not been tested and the environmental effects are
undetermined.
Ecotoxicity Values: Not determined.
SECTION 13
DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD:
Dispose of material in accordance with Federal, State, Provincial, and Local regulations. Consult with environmental
regulatory agencies for guidance on acceptable disposal practices. Never discharge directly into sewers or surface
waters.
SECTION 14
TRANSPORT INFORMATION
U.S. DOT INFORMATION: Not a hazardous material per DOT shipping requirements. Not classified or regulated.
Same as product name.
Shipping Name
Not classified
Hazard Class:
None. Not classified.
UN/NA #:
None.
Packing Group:
Not applicable.
Label (s) Required:
Not classified.
GGVSec/MDG-Code:
Not applicable.
ICAO/IATA-DGR:
None
RID/ADR:
None
ADNR:
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 7 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
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.
SARA SARA SARA CERCLA CAA RCRA
MATERIAL WT%
Sec. 302 Sec. 304 Sec. 313 Sec. 112 Code
--- --- --- --- --- ---
Gypsum > 80
--- --- --- --- --- ---
or Calcium Sulfate Dihydrate
--- --- --- --- --- ---
Recycled Paper (cellulose) <10
--- --- --- --- --- ---
Starch <5
--- --- --- --- --- ---
Parrafin Wax <2
--- --- --- --- --- ---
Sodium Pyrithione <1
--- --- --- --- --- ---
Fibrous Glass (continuous filament, <1
textile grade)
--- --- --- --- --- ---
Crystalline Silica (quartz) <1
Key : --- = Not Listed, X = See regulation below
SARA Title III Section 302 (EPCRA) Extremely Hazardous Substances: None
SARA Title III Section 304 (EPCRA) Extremely Hazardous Substances: None
SARA Title III Section 313 (EPCRA) Toxic Chemicals : None
CERCLA Hazardous Substances: None
CAA Section 112 (r) Regulated Chemicals for Accidental Release Prevention: None
Food and Drug Administration [CFR Title 21, v.3, sec 184.1230] 鈥? Calcium Sulfate is Generally
Recognized as Safe (GRAS).
CANADIAN REGULATIONS
All components of this product are included in the Canadian Domestic Substances List (DSL).
The following components are identified under the Canadian Hazardous Products Act Ingredient Disclosure List:
SUBSTANCE WT% MINIMUM CONCENTRATION CAS NUMBER
Crystalline Silica <1 1% item 1406 (1491) 14808-60-7
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 8 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 15 REGULATORY INFORMATION (continued)
WHMIS Information: 416-327-7066.
WHMIS Classification:
Not Controlled
Gypsum
Not Controlled
or Calcium Sulfate Dihydrate
Not Controlled
Recycled Paper (cellulose)
Parrafin Wax Not Controlled
Sodium Pyrithione Not Controlled
Not Controlled
Starch
Not Controlled
Fibrous Glass (continuous filament, textile grade)
D2A
Crystalline Silica (quartz)
CARCINOGENICITY CLASSIFICATION OF INGREDIENT(S)
MATERIAL IARC NTP ACGIH
Respirable Crystalline Silica1 1-Carcinogenic to humans 1-Known to be carcinogens A2-Suspected human
carcinogen
1
The concentration of respirable crystalline silica measured in bulk samples of USG gypsum was less than 0.1 Wt.%.
Industrial hygiene testing, following the NIOSH Method 7500, did not detect respirable crystalline silica in dust created
during cutting of USG gypsum wallboard panels by both the recommended score and snap technique and with the use
of a power saw in a 10鈥? x 10鈥? room. Exposures to respirable crystalline silica are not expected during the normal use of
this product; however, actual levels must be determined by workplace hygiene testing.
Gypsum wallboard panels do not release respirable dust in their installed state and therefore do not present any known
health hazards when installed and properly maintained.
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.
In June 1997, the International Agency for Research on Cancer (IARC) classified crystalline silica (quartz and
cristobolite) as a human carcinogen. In making the overall evaluation, the IARC Working Group noted that
carcinogenicity in humans was not detected in all industrial workplace situations. 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).
SECTION 16
OTHER INFORMATION
Label Information
鈭哤ARNING!
Follow good safety and industrial hygiene practices during the handling and installing of all products and systems. Dust
created from product may cause eye, skin, nose, throat or upper respiratory irritation. Avoid inhalation of dust and eye
contact. Use in a well-ventilated area. Wear a NIOSH/MSHA-approved respirator when dusty. Use proper ventilation to
reduce dust exposure. Wear eye protection. If eye contact occurs, flush thoroughly with water for 15 minutes. If irritation
persists, call physician. Do not ingest. If ingested, call physician. Panels are heavy and can fall over, causing serious
injury or death. Avoid creating a tripping hazard and do not exceed floor limit loads.
Product safety information: (800) 507-8899 or www.cgcinc.com
KEEP OUT OF REACH OF CHILDREN.
MSDS # 1004.22E
MATERIAL SAFETY DATA SHEET Page 9 of 9
SHEETROCK庐 Brand HUMITEK鈩? Gypsum Panels
SECTION 16 OTHER INFORMATION (continued)
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
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
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
125 South Franklin St.
Chicago, Illinois 60606
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