SAFETY DATA SHEET
1. Identification
Product identifier 42H PLASTERS
Other means of identification
SDS number GP-42H
Product code GP-42H
Synonyms See Product List found in Section 16
Recommended use Industrial plasters
Recommended restrictions Workers (and your customers or users in the case of resale) should be informed of the potential
presence of respirable dust and respirable crystalline silica as well as their potential hazards.
Appropriate training in the proper use and handling of this material should be provided as required
under applicable regulations.
Manufacturer/Importer/Supplier/Distributor information
Georgia-Pacific Gypsum LLC
Address 133 Peachtree Street, NE
Company name
Telephone Technical Information 800.225.6119
(M)SDS Request 404.652.5119
Emergency phone number Chemtrec – Emergency 800.424.9300
E-mail Not available.
Atlanta, GA 30303
2. Hazard(s) identification
Emergency overview WARNING
Harmful if swallowed. Causes eye irritation. May cause an allergic skin reaction. A natural
chemical reaction during hardening (rehydration) develops sufficient heat that may cause severe
burns in the event of contact with skin. These burns may possibly result in permanent injury. Do
not allow product to harden around any body part or allow continuous, prolonged contact with skin.
Crushing, mixing, sanding, or otherwise working with this product may generate large amounts of
dust. Dust can be irritating to the eyes, skin, and respiratory system.
Not classified.Physical hazards
Category 4Acute toxicity, oralHealth hazards
Category 2BSerious eye damage/eye irritation
Category 1Sensitization, skin
Not classified.Environmental hazards
Not classified.OSHA defined hazards
Label elements
Signal word Warning
Hazard statement Harmful if swallowed. Causes eye irritation. May cause an allergic skin reaction.
Precautionary statement
Prevention Avoid breathing dust. Wash thoroughly after handling. Do not eat, drink or smoke when using this
product. Contaminated work clothing must not be allowed out of the workplace. Wear protective
gloves. After mixing with water, do not allow prolonged contact with skin until the product has
completely hardened and cooled.
Response If swallowed: Rinse mouth. Call a poison center/doctor if you feel unwell. If in eyes: Rinse
cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing. If eye irritation persists: Get medical advice/attention. If on skin: Wash with
plenty of water. If skin irritation or rash occurs: Get medical advice/attention. Wash contaminated
clothing before reuse. Specific treatment (see section 4 on the SDS).
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

Storage Store away from incompatible materials. Store away from acids, phosphorus, diazomethane, and
aluminum (at high temperatures). Protect from moisture.
Disposal Dispose of contents/container in accordance with applicable regulations.
Hazard(s) not otherwise
classified (HNOC)
Heat develops as product hardens. May cause serious burns during hardening (rehydration)
resulting in possible permanent injury.
Supplemental information None.
3. Composition/information on ingredients
Mixtures
CAS number %Chemical name Common name and synonyms
10101-41-4GYPSUM (CALCIUM SULFATE) 60 – 100
65997-15-1PORTLAND CEMENT 1 – 5
14808-60-7CRYSTALLINE SILICA (QUARTZ)*
Other components below reportable levels 1 – 5
0.1 – 1
Composition comments Gypsum (calcium sulfate) and Portland Cement contain naturally occurring crystalline silica
(quartz) which is listed as a lung carcinogen. See Section 8 for exposure information.
*The weight percent for crystalline silica represents total crystalline silica and not the respirable
fraction. Testing conducted by Georgia-Pacific did not detect respirable crystalline silica during
activities associated with the normal use of this product; however, jobsite air monitoring should be
conducted to determine actual exposure when permissible exposure limits may be exceeded.
4. First-aid measures
Inhalation Remove to fresh air. If symptoms persist, get medical attention.
Skin contact For skin contact, wash immediately with soap and water. If skin irritation or rash occurs: Get
medical advice/attention. Take off immediately all contaminated clothing. Wash contaminated
clothing before reuse.
Eye contact Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if
present and easy to do. Continue rinsing. Get medical attention if irritation develops and persists.
Ingestion Rinse mouth. Do not induce vomiting without advice from poison control center. If vomiting occurs,
keep head low so that stomach content doesn’t get into the lungs. May result in obstruction and
irritation if ingested. Get medical attention.
Most important
symptoms/effects, acute and
delayed
Causes eye irritation. Exposed individuals may experience eye tearing, redness, and discomfort.
Skin contact during hardening (rehydration) may slowly develop sufficient heat that may cause
severe burns possibly resulting in permanent injury. Do not allow product to harden around any
body part or allow continuous, prolonged contact with skin. Handling can cause dry skin. May
cause an allergic skin reaction. Dermatitis. Rash. Upper respiratory tract irritation.
Indication of immediate
medical attention and special
treatment needed
Provide general supportive measures and treat symptomatically. Keep victim warm. Keep victim
under observation. Symptoms may be delayed.
General information Ensure that medical personnel are aware of the material(s) involved, and take precautions to
protect themselves. Show this safety data sheet to the doctor in attendance. Wash contaminated
clothing before reuse.
5. Fire-fighting measures
Suitable extinguishing media Use extinguishing measures that are appropriate to local circumstances and the surrounding
environment.
Unsuitable extinguishing
media
None known.
Specific hazards arising from
the chemical
During fire, gases hazardous to health may be formed.
Special protective equipment
and precautions for firefighters
Self-contained breathing apparatus and full protective clothing must be worn in case of fire.
Fire-fighting
equipment/instructions
Firefighters should wear full protective clothing including self contained breathing apparatus. Use
water spray to cool unopened containers.
Specific methods Use standard firefighting procedures and consider the hazards of other involved materials.
General fire hazards No unusual fire or explosion hazards noted.
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

6. Accidental release measures
Personal precautions,
protective equipment and
emergency procedures
Keep people away from and upwind of spill/leak. Wear appropriate protective equipment and
clothing during clean-up. Avoid inhalation of dust. Use a NIOSH/MSHA approved respirator if there
is a risk of exposure to dust/fume at levels exceeding the exposure limits. Ensure adequate
ventilation. Use personal protection recommended in Section 8.
Methods and materials for
containment and cleaning up
Sweep up or gather material and place in appropriate container for disposal. If sweeping of a
contaminated area is necessary use a dust suppressant agent which does not react with the
product. Contain the spill, then place in a suitable container. Minimize dust generation. For waste
disposal, see section 13 of the SDS.
Environmental precautions Keep out of drains, sewers, ditches, and waterways.
7. Handling and storage
Precautions for safe handlingProvide appropriate exhaust ventilation at places where dust is formed. Minimize dust generation
and accumulation. Avoid breathing dust. Avoid contact with eyes, skin, and clothing. Avoid
prolonged exposure. Do not taste or swallow. When using, do not eat, drink or smoke. Wear
appropriate personal protective equipment. Wash hands thoroughly after handling. Observe good
industrial hygiene practices.
Conditions for safe storage,
including any incompatibilities
Store in original tightly closed container. Store in a well-ventilated place. Store in a covered, dry,
climate controlled area, away from incompatibles.
8. Exposure controls/personal protection
Occupational exposure limits
US OSHA Table Z-3: Caluculated Time Weighted Average (TWA) (mg/m3)
ValueComponents FormType
TWA 3.3 mg/m3 Respirable.CRYSTALLINE SILICA
(QUARTZ)* (CAS
14808-60-7)
10 mg/m3 Total dust.
US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000)
ValueComponents FormType
PEL 5 mg/m3 Respirable fraction.GYPSUM (CALCIUM
SULFATE) (CAS
10101-41-4)
15 mg/m3 Total dust.
PEL 5 mg/m3 Respirable fraction.PORTLAND CEMENT (CAS
65997-15-1)
15 mg/m3 Total dust.
US ACGIH Threshold Limit Values: Time Weighted Average (TWA): mg/m3, non-standard units
ValueComponents FormType
TWA 0.025 mg/m3 Respirable fraction.CRYSTALLINE SILICA
(QUARTZ)* (CAS
14808-60-7)
TWA 10 mg/m3 Inhalable fraction.GYPSUM (CALCIUM
SULFATE) (CAS
10101-41-4)
TWA 1 mg/m3 Respirable fraction.PORTLAND CEMENT (CAS
65997-15-1)
US. NIOSH: Pocket Guide to Chemical Hazards
ValueComponents FormType
TWA 0.05 mg/m3 Respirable dust.CRYSTALLINE SILICA
(QUARTZ)* (CAS
14808-60-7)
TWA 5 mg/m3 Respirable.GYPSUM (CALCIUM
SULFATE) (CAS
10101-41-4)
10 mg/m3 Total
TWA 5 mg/m3 Respirable.PORTLAND CEMENT (CAS
65997-15-1)
10 mg/m3 Total
Biological limit values No biological exposure limits noted for the ingredient(s).
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

Exposure guidelines Occupational exposure to nuisance dust (total and respirable) and respirable crystalline silica
should be monitored and controlled. Exposure limits for CRYSTALLINE SILICA – The US OSHA
exposure limits 8 hour TWA for CRYSTALLINE SILICA (QUARTZ) are calculated from the
following equations: 30/(%SiO2+2) mg/m3 for total dust; and 10/(%SiO2+2) mg/m3 for the
respirable fraction.
*Testing conducted by Georgia-Pacific did not detect respirable crystalline silica during activities
associated with the normal use of this product; however, jobsite air monitoring should be
conducted to determine actual exposure when permissible exposure limits may be exceeded.
Appropriate engineering
controls
When using product, provide local and general exhaust ventilation to keep airborne dust
concentrations below exposure limits. Use wet methods, if appropriate, to reduce the generation of
dust.
Individual protection measures, such as personal protective equipment
Eye/face protection Wear safety glasses with side shields (or goggles). Ensure compliance with OSHA’s PPE standard
(29 CFR 1910.132 and .133) for eye and face protection. Safety shower/eye wash fountain must
be readily available in the workplace area (29 CFR 1910.151(c)).
Skin protection
Hand protection Wear appropriate chemical resistant gloves.
Other Impervious protective clothing and gloves recommended to prevent drying or irritation of skin.
Ensure compliance with OSHA’s PPE standards (29 CFR 1910.132 (general) and 138 (hand
protection)). Safety shower/eye wash fountain is recommended in the workplace area (29 CFR
1910.151 (c)).
Respiratory protection A NIOSH approved dust mask or filtering facepiece is recommended in poorly ventilated areas or
when permissible exposure limits may be exceeded. Respirators should be selected by and used
under the direction of a trained health and safety professional following requirements found in
OSHA’s respirator standard (29 CFR 1910.134) and ANSI’s standard for respiratory protection
(Z88.2).
Thermal hazards Wear appropriate thermal protective clothing, when necessary.
General hygiene
considerations
Keep away from food and drink. Always observe good personal hygiene measures, such as
washing after handling the material and before eating, drinking, and/or smoking. Routinely wash
work clothing and protective equipment to remove contaminants. Contaminated work clothing
should not be allowed out of the workplace.
9. Physical and chemical properties
Appearance
Physical state Solid.
Form Powder.
Color Light grey to white
Odor Low odor
Odor threshold Not available.
pH 8 – 11
Melting point/freezing point2642 F (1450 C) estimated
Initial boiling point and boiling
range
Not applicable
Flash point Not applicable
Evaporation rate Not available
Flammability (solid, gas) Not available.
Upper/lower flammability or explosive limits
Flammability limit – lower
(%)
Not applicable
Flammability limit – upper
(%)
Not applicable
Explosive limit – lower (%)Not available.
Explosive limit – upper (%)Not available.
Vapor pressure Not applicable
Vapor density Not applicable
Relative density 2.3 – 2.7 g/cm3
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

Solubility(ies)
Solubility (water) 0.2 – 0.7 % @ 22 C
Partition coefficient
(n-octanol/water)
Not available.
Auto-ignition temperature Not applicable
Decomposition temperature Not available.
Viscosity Not available.
Other information
Flash point class Not flammable
Specific gravity 2.3 – 2.7
10. Stability and reactivity
Reactivity Reacts with water (normal condition of use).
Chemical stability Stable at normal conditions.
Possibility of hazardous
reactions
No dangerous reaction known under conditions of normal use.
Conditions to avoid Contact with incompatible materials. Avoid dispersal of dust in the air (i.e., clearing dust surfaces
with compressed air). Exposure to moisture.
Incompatible materials Acids. Phosphorus. Diazomethane. Aluminum (at high temperatures).
Hazardous decomposition
products
May include and are not limited to: calcium oxide and sulfur dioxide.
11. Toxicological information
Information on likely routes of exposure
Ingestion Harmful if swallowed.
Inhalation Prolonged inhalation may be harmful. Inhalation of dusts may cause respiratory irritation.
Skin contact May cause an allergic skin reaction. Skin contact during hardening (rehydration) may slowly
develop sufficient heat that may cause severe burns possibly resulting in permanent injury. Do
not allow product to harden around any body part or allow continuous, prolonged contact with
skin. Handling can cause dry skin.
Eye contact Causes eye irritation. Dust in the eyes will cause irritation.
Symptoms related to the
physical, chemical and
toxicological characteristics
Causes eye irritation. Exposed individuals may experience eye tearing, redness, and discomfort.
Skin contact during hardening (rehydration) may slowly develop sufficient heat that may cause
severe burns possibly resulting in permanent injury. Do not allow product to harden around any
body part or allow continuous, prolonged contact with skin. Handling can cause dry skin. May
cause an allergic skin reaction. Dermatitis. Rash. Upper respiratory tract irritation.
Information on toxicological effects
Acute toxicity Harmful if swallowed. May cause an allergic skin reaction.
Test ResultsProduct Species
42H PLASTERS (CAS Mixture)
LD50 Rat
Oral
Acute
1670.9193 mg/kg estimated
Test ResultsComponents Species
GYPSUM (CALCIUM SULFATE) (CAS 10101-41-4)
LD50 Rat
Oral
Acute
> 1581 mg/kg
* Estimates for product may be based on additional component data not shown.
Skin corrosion/irritation Skin contact during hardening (rehydration) may slowly develop sufficient heat that may cause
severe burns possibly resulting in permanent injury. Do not allow product to harden around any
body part or allow continuous, prolonged contact with skin. Handling can cause dry skin.
Serious eye damage/eye
irritation
Causes eye irritation. Dust in the eyes will cause irritation.
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

Respiratory or skin sensitization
Respiratory sensitizationNot classified.
Skin sensitization May cause an allergic skin reaction.
Germ cell mutagenicity Not classified.
Carcinogenicity Not expected to be hazardous by OSHA criteria.
Exposure to respirable crystalline silica in the form of quartz or cristobalite from occupational
sources is listed by IARC and NTP as a lung carcinogen. Prolonged exposure to respirable
crystalline silica has been known to cause silicosis, a lung disease, which may be disabling.
While there may be a factor of individual susceptibility to a given exposure to a respirable silica
dust, the risk of contracting silicosis and the severity of the disease is clearly related to the
amount of respirable crystalline silica exposure and the length of time (usually years) of exposure.
IARC Monographs. Overall Evaluation of Carcinogenicity
CRYSTALLINE SILICA (QUARTZ)* (CAS 14808-60-7) 1 Carcinogenic to humans.
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Not listed.
Reproductive toxicity Not classified.
Specific target organ toxicity –
single exposure
Not classified.
Specific target organ toxicity –
repeated exposure
Not classified.
Aspiration hazard Not classified.
Chronic effects Prolonged inhalation may be harmful.
Further information *Testing conducted by Georgia-Pacific did not detect respirable crystalline silica during activities
associated with the normal use of this product; however, jobsite air monitoring should be
conducted to determine actual exposure when permissible exposure limits may be exceeded.
12. Ecological information
Ecotoxicity The product is not classified as environmentally hazardous. However, this does not exclude the
possibility that large or frequent spills can have a harmful or damaging effect on the environment.
Product Test ResultsSpecies
42H PLASTERS (CAS Mixture)
Aquatic
EC50Crustacea 10983.8818 mg/L, 48 Hours estimatedDaphnia
LC50Fish 11968.0488 mg/l, 96 hours estimatedFish
Components Test ResultsSpecies
CRYSTALLINE SILICA (QUARTZ)* (CAS 14808-60-7)
Aquatic
Acute
LC50Fish > 10000 mg/l, 96 Hours OECD SIDSZebra danio (Danio rerio)
* Estimates for product may be based on additional component data not shown.
GYPSUM (CALCIUM SULFATE) (CAS 10101-41-4)
Aquatic
LC50Fish 2980 mg/l, 96 HoursFish
Persistence and degradabilityNo data is available on the degradability of this product.
Bioaccumulative potential No data available.
Mobility in soil No data available.
Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation
potential, endocrine disruption, global warming potential) are expected from this component.
13. Disposal considerations
Disposal instructions Under RCRA, it is the responsibility of the user of the product to determine, at the time of disposal,
whether the product meets RCRA criteria for hazardous waste.
Local disposal regulations Dispose in accordance with all applicable regulations.
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
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Hazardous waste code The waste code should be assigned in discussion between the user, the producer and the waste
disposal company.
Waste from residues / unused
products
Dispose of in accordance with local regulations. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe manner (see:
Disposal instructions).
Contaminated packaging Empty containers should be taken to an approved waste handling site for recycling or disposal.
Since emptied containers may retain product residue, follow label warnings even after container is
emptied.
14. Transport information
DOT
Not regulated as dangerous goods.
Not applicable.Transport in bulk according to
Annex II of MARPOL 73/78 and
the IBC Code
General information This product is not regulated as a hazardous material by the United States (DOT) transportation
regulations.
15. Regulatory information
US federal regulations This product is a “Hazardous Chemical” as defined by the OSHA Hazard Communication
Standard, 29 CFR 1910.1200.
TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)
Not regulated.
CERCLA Hazardous Substance List (40 CFR 302.4)
Not listed.
SARA 304 Emergency release notification
Not regulated.
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Not listed.
Superfund Amendments and Reauthorization Act of 1986 (SARA)
Hazard categories Immediate Hazard – Yes
Delayed Hazard – No
Fire Hazard – No
Pressure Hazard – No
Reactivity Hazard – No
SARA 302 Extremely hazardous substance
Not listed.
SARA 311/312 Hazardous
chemical
Yes
SARA 313 (TRI reporting)
Not regulated.
Other federal regulations
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List
Not regulated.
Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)
Not regulated.
Safe Drinking Water Act
(SDWA)
Not regulated.
US state regulations
US. Massachusetts RTK – Substance List
CRYSTALLINE SILICA (QUARTZ)* (CAS 14808-60-7)
GYPSUM (CALCIUM SULFATE) (CAS 10101-41-4)
PORTLAND CEMENT (CAS 65997-15-1)
US. New Jersey Worker and Community Right-to-Know Act
CRYSTALLINE SILICA (QUARTZ)* (CAS 14808-60-7)
GYPSUM (CALCIUM SULFATE) (CAS 10101-41-4)
PORTLAND CEMENT (CAS 65997-15-1)
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US

US. Pennsylvania Worker and Community Right-to-Know Law
CRYSTALLINE SILICA (QUARTZ)* (CAS 14808-60-7)
GYPSUM (CALCIUM SULFATE) (CAS 10101-41-4)
PORTLAND CEMENT (CAS 65997-15-1)
US. Rhode Island RTK
Not regulated.
US. California Proposition 65
This product contains no listed substances known to the State of California to cause cancer, birth defects or other
reproductive harm, at levels which would require a warning under the statute.
International Inventories
Country(s) or region Inventory name On inventory (yes/no)*
YesCanada Domestic Substances List (DSL)
YesUnited States & Puerto Rico Toxic Substances Control Act (TSCA) Inventory
*A “Yes” indicates that all components of this product comply with the inventory requirements administered by the governing country(s)
A “No” indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing
country(s).
16. Other information, including date of preparation or last revision
Product list DENSCAL Ram Process K-40 BR-840, BR-842, NV-840
DENSCAL TL-30 BR-830
DENSCAL TL BR-711, NV-711, NV-871
DENSITE K-12 BR-812
DENSITE High Plasticity K-13 BR-813, NV-813
DENSITE LE K-33 BR-833
DENSITE LE K-25 BR-825, NV-825
Plate Glass Stucco BR-222
Issue date March-04-2015
Revision date 04-Mar-2015
Version # 01
HMIS ratings Health: 2
Flammability: 0
Physical hazard: 1
NFPA ratings Health: 2
Flammability: 0
Instability: 0
Disclaimer This SDS is intended to quickly provide useful information to the user(s) of this material or product.
It is not intended to serve as a comprehensive discussion of all possible risks or hazards, and it
assumes a reasonable use of the product. The information contained in this SDS is believed to be
accurate as of the date of preparation of this SDS and has been compiled from sources believed
to be reliable. It is offered for your consideration, investigation and verification. The user or
handler (or their employer) should consider the specific conditions in which this material will be
used, handled, or stored and determine what specific safety or other precautions are required.
Employers should ensure that their employees, agents, contractors, and customers who will use
the product receive adequate warnings and safe handling procedures, including a current SDS.
Product users or handlers (or their employer) who are unsure of what specific precautions are
required should consult their employer, product supplier, or safety or health professionals before
handling or working with this product. Please notify us immediately if you believe this SDS or other
safety and health information about this product is inaccurate or incomplete.
Revision Information Product and Company Identification: Synonyms
Composition / Information on Ingredients: Ingredients
Physical & Chemical Properties: Multiple Properties
Toxicological Information: Toxicological Data
Ecological Information: Ecotoxicity
Transport Information: Agency Name, Packaging Type, and Transport Mode Selection
Regulatory Information: United States
HazReg Data: North America
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Material name: 42H PLASTERS
GP-42H Version #: 01 Revision date: 04-Mar-2015 Issue date: March-04-2015
SDS US