
KRYLON® Weld-Thru Primer
Gray
Other means of
identification
Emergency telephone
number of the company
Section 1. Identification
THE SHERWIN-WILLIAMS COMPANY
KRYLON PRODUCTS GROUP
Cleveland, OH 44115
Relevant identified uses of the substance or mixture and uses advised against
Product Information
Telephone Number
Regulatory Information
Telephone Number
Transportation Emergency
Telephone Number
Section 2. Hazards identification
FLAMMABLE LIQUIDS - Category 3
SKIN CORROSION/IRRITATION - Category 2
SERIOUS EYE DAMAGE/ EYE IRRITATION - Category 2A
SKIN SENSITIZATION - Category 1
CARCINOGENICITY - Category 1A
SPECIFIC TARGET ORGAN TOXICITY (REPEATED EXPOSURE) - Category 2
ASPIRATION HAZARD - Category 1
Classification of the
substance or mixture
Percentage of the mixture consisting of ingredient(s) of unknown toxicity: 42%
This material is considered hazardous by the OSHA Hazard Communication Standard
(29 CFR 1910.1200).
Flammable liquid and vapor.
Causes serious eye irritation.
Causes skin irritation.
May cause an allergic skin reaction.
May cause cancer.
May be fatal if swallowed and enters airways.
May cause damage to organs through prolonged or repeated exposure.
Date of issue/Date of revision

Section 2. Hazards identification
Obtain special instructions before use. Do not handle until all safety precautions have
been read and understood. Use personal protective equipment as required. Wear
protective gloves. Wear eye or face protection. Keep away from heat, hot surfaces,
sparks, open flames and other ignition sources. No smoking. Use explosion-proof
electrical, ventilating, lighting and all material-handling equipment. Use only nonsparking tools. Take precautionary measures against static discharge. Keep container
tightly closed. Do not breathe vapor. Wash hands thoroughly after handling.
Contaminated work clothing should not be allowed out of the workplace.
Get medical attention if you feel unwell. IF exposed or concerned: Get medical
attention. IF SWALLOWED: Immediately call a POISON CENTER or physician. Do
NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated
clothing. Rinse skin with water or shower. IF ON SKIN: Wash with plenty of soap and
water. Take off contaminated clothing. If skin irritation or rash occurs: Get medical
attention. 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 attention.
Store locked up. Store in a well-ventilated place. Keep cool.
Dispose of contents and container in accordance with all local, regional, national and
international regulations.
Hazards not otherwise
classified
Please refer to the SDS for additional information. Do not transfer contents to other
containers for storage.
Supplemental label
elements
Adequate ventilation required when sanding or abrading the dried film. If Adequate
ventilation cannot be provided wear an approved particulate respirator (NIOSH
approved). Follow respirator manufacturer's directions for respirator use. DELAYED
EFFECTS FROM LONG TERM OVEREXPOSURE. Abrading or sanding of the dry film
may release crystalline silica which has been shown to cause lung damage and cancer
under long term exposure. DANGER: Rags, steel wool, other waste soaked with this
product, and sanding residue may spontaneously catch fire if improperly discarded.
Immediately place rags, steel wool, other waste soaked with this product, and sanding
residue in a sealed, water-filled, metal container. Dispose of in accordance with local fire
regulations. DELAYED EFFECTS FROM LONG TERM OVEREXPOSURE. Contains
solvents which can cause permanent brain and nervous system damage. Intentional
misuse by deliberately concentrating and inhaling the contents can be harmful or fatal.
WARNING: This product contains chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. FOR INDUSTRIAL USE ONLY.
Section 3. Composition/information on ingredients
Med. Aliphatic Hydrocarbon Solvent
There are no additional ingredients present which, within the current knowledge of the supplier and in the
concentrations applicable, are classified as hazardous to health or the environment and hence require reporting
in this section.
Other means of
identification
CAS number/other identifiers
Date of issue/Date of revision

Section 3. Composition/information on ingredients
Occupational exposure limits, if available, are listed in Section 8.
Get medical attention immediately. Call a poison center or physician. Wash out mouth
with water. Remove dentures if any. Remove victim to fresh air and keep at rest in a
position comfortable for breathing. If material has been swallowed and the exposed
person is conscious, give small quantities of water to drink. Stop if the exposed person
feels sick as vomiting may be dangerous. Aspiration hazard if swallowed. Can enter
lungs and cause damage. Do not induce vomiting. If vomiting occurs, the head should
be kept low so that vomit does not enter the lungs. Never give anything by mouth to an
unconscious person. If unconscious, place in recovery position and get medical
attention immediately. Maintain an open airway. Loosen tight clothing such as a collar,
tie, belt or waistband.
Immediately flush eyes with plenty of water, occasionally lifting the upper and lower
eyelids. Check for and remove any contact lenses. Continue to rinse for at least 10
minutes. Get medical attention.
Wash with plenty of soap and water. Remove contaminated clothing and shoes. Wash
contaminated clothing thoroughly with water before removing it, or wear gloves.
Continue to rinse for at least 10 minutes. Get medical attention. In the event of any
complaints or symptoms, avoid further exposure. Wash clothing before reuse. Clean
shoes thoroughly before reuse.
Remove victim to fresh air and keep at rest in a position comfortable for breathing. If
not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial
respiration or oxygen by trained personnel. It may be dangerous to the person providing
aid to give mouth-to-mouth resuscitation. Get medical attention. If unconscious, place
in recovery position and get medical attention immediately. Maintain an open airway.
Loosen tight clothing such as a collar, tie, belt or waistband.
Section 4. First aid measures
Treat symptomatically. Contact poison treatment specialist immediately if large
quantities have been ingested or inhaled.
Description of necessary first aid measures
Most important symptoms/effects, acute and delayed
No known significant effects or critical hazards.
May be fatal if swallowed and enters airways. Irritating to mouth, throat and stomach.
Causes skin irritation. May cause an allergic skin reaction.
Causes serious eye irritation.
Over-exposure signs/symptoms
Skin contact
Ingestion
Inhalation
Adverse symptoms may include the following:
nausea or vomiting
Adverse symptoms may include the following:
irritation
redness
Adverse symptoms may include the following:
pain or irritation
watering
redness
Potential acute health effects
Indication of immediate medical attention and special treatment needed, if necessary
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Section 4. First aid measures
Protection of first-aiders
No action shall be taken involving any personal risk or without suitable training. If it is
suspected that fumes are still present, the rescuer should wear an appropriate mask or
self-contained breathing apparatus. It may be dangerous to the person providing aid to
give mouth-to-mouth resuscitation. Wash contaminated clothing thoroughly with water
before removing it, or wear gloves.
See toxicological information (Section 11)
Section 5. Fire-fighting measures
Promptly isolate the scene by removing all persons from the vicinity of the incident if
there is a fire. No action shall be taken involving any personal risk or without suitable
training. Move containers from fire area if this can be done without risk. Use water
spray to keep fire-exposed containers cool.
Hazardous thermal
decomposition products
Specific hazards arising
from the chemical
Decomposition products may include the following materials:
carbon dioxide
carbon monoxide
metal oxide/oxides
Flammable liquid and vapor. In a fire or if heated, a pressure increase will occur and
the container may burst, with the risk of a subsequent explosion. The vapor/gas is
heavier than air and will spread along the ground. Vapors may accumulate in low or
confined areas or travel a considerable distance to a source of ignition and flash back.
Runoff to sewer may create fire or explosion hazard.
Fire-fighters should wear appropriate protective equipment and self-contained breathing
apparatus (SCBA) with a full face-piece operated in positive pressure mode.
Special protective
equipment for fire-fighters
Use dry chemical,
CO₂,
water spray (fog) or foam.
Suitable extinguishing
media
Unsuitable extinguishing
media
Special protective actions
for fire-fighters
Section 6. Accidental release measures
Environmental precautions
Personal precautions, protective equipment and emergency procedures
No action shall be taken involving any personal risk or without suitable training.
Evacuate surrounding areas. Keep unnecessary and unprotected personnel from
entering. Do not touch or walk through spilled material. Shut off all ignition sources.
No flares, smoking or flames in hazard area. Avoid breathing vapor or mist. Provide
adequate ventilation. Wear appropriate respirator when ventilation is inadequate. Put
on appropriate personal protective equipment.
Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains
and sewers. Inform the relevant authorities if the product has caused environmental
pollution (sewers, waterways, soil or air).
Stop leak if without risk. Move containers from spill area. Use spark-proof tools and
explosion-proof equipment. Dilute with water and mop up if water-soluble. Alternatively,
or if water-insoluble, absorb with an inert dry material and place in an appropriate waste
disposal container. Dispose of via a licensed waste disposal contractor.
Methods and materials for containment and cleaning up
For non-emergency
personnel
If specialised clothing is required to deal with the spillage, take note of any information in
Section 8 on suitable and unsuitable materials. See also the information in "For nonemergency personnel".
Date of issue/Date of revision

Section 6. Accidental release measures
Stop leak if without risk. Move containers from spill area. Use spark-proof tools and
explosion-proof equipment. Approach release from upwind. Prevent entry into sewers,
water courses, basements or confined areas. Wash spillages into an effluent treatment
plant or proceed as follows. Contain and collect spillage with non-combustible,
absorbent material e.g. sand, earth, vermiculite or diatomaceous earth and place in
container for disposal according to local regulations (see Section 13). Dispose of via a
licensed waste disposal contractor. Contaminated absorbent material may pose the
same hazard as the spilled product. Note: see Section 1 for emergency contact
information and Section 13 for waste disposal.
Section 7. Handling and storage
Advice on general
occupational hygiene
Conditions for safe storage,
including any
incompatibilities
Eating, drinking and smoking should be prohibited in areas where this material is
handled, stored and processed. Workers should wash hands and face before eating,
drinking and smoking. Remove contaminated clothing and protective equipment before
entering eating areas. See also Section 8 for additional information on hygiene
measures.
Store in accordance with local regulations. Store in a segregated and approved area.
Store in original container protected from direct sunlight in a dry, cool and well-ventilated
area, away from incompatible materials (see Section 10) and food and drink. Store
locked up. Eliminate all ignition sources. Separate from oxidizing materials. Keep
container tightly closed and sealed until ready for use. Containers that have been
opened must be carefully resealed and kept upright to prevent leakage. Do not store in
unlabeled containers. Use appropriate containment to avoid environmental
contamination.
Put on appropriate personal protective equipment (see Section 8). Persons with a
history of skin sensitization problems should not be employed in any process in which
this product is used. Avoid exposure - obtain special instructions before use. Do not
handle until all safety precautions have been read and understood. Do not get in eyes
or on skin or clothing. Do not breathe vapor or mist. Do not swallow. Use only with
adequate ventilation. Wear appropriate respirator when ventilation is inadequate. Do
not enter storage areas and confined spaces unless adequately ventilated. Keep in the
original container or an approved alternative made from a compatible material, kept
tightly closed when not in use. Store and use away from heat, sparks, open flame or
any other ignition source. Use explosion-proof electrical (ventilating, lighting and
material handling) equipment. Use only non-sparking tools. Take precautionary
measures against electrostatic discharges. Empty containers retain product residue
and can be hazardous. Do not reuse container.
Precautions for safe handling
OSHA PEL (United States, 2/2013).
TWA: 5 mg/m³ 8 hours. Form: Respirable
fraction
TWA: 15 mg/m³ 8 hours. Form: Total dust
Med. Aliphatic Hydrocarbon Solvent
OSHA PEL (United States, 2/2013).
NIOSH REL (United States, 10/2013).
CEIL: 15 mg/m³ Form: Dust
TWA: 5 mg/m³ 10 hours. Form: Dust and
fumes
STEL: 10 mg/m³ 15 minutes. Form: Fume
OSHA PEL (United States, 2/2013).
Section 8. Exposure controls/personal protection
Occupational exposure limits
Date of issue/Date of revision

Section 8. Exposure controls/personal protection
TWA: 5 mg/m³ 8 hours. Form: Fume
TWA: 5 mg/m³ 8 hours. Form: Respirable
fraction
TWA: 15 mg/m³ 8 hours. Form: Total dust
ACGIH TLV (United States, 4/2014).
TWA: 2 mg/m³ 8 hours. Form: Respirable
fraction
STEL: 10 mg/m³ 15 minutes. Form:
Respirable fraction
ACGIH TLV (United States, 4/2014).
OSHA PEL (United States, 2/2013).
TWA: 15 mg/m³ 8 hours. Form: Total dust
ACGIH TLV (United States, 4/2014).
STEL: 750 ppm 15 minutes.
STEL: 1782 mg/m³ 15 minutes.
NIOSH REL (United States, 10/2013).
OSHA PEL (United States, 2/2013).
OSHA PEL Z3 (United States, 2/2013).
TWA: 250 MPPCF / (%SiO2+5) 8 hours.
Form: Respirable
TWA: 10 MG/M3 / (%SiO2+2) 8 hours. Form:
Respirable
ACGIH TLV (United States, 4/2014).
TWA: 0.025 mg/m³ 8 hours. Form:
Respirable fraction
NIOSH REL (United States, 10/2013).
TWA: 0.05 mg/m³ 10 hours. Form: respirable
dust
AIHA WEEL (United States, 10/2011). Skin
sensitizer.
Environmental exposure
controls
Emissions from ventilation or work process equipment should be checked to ensure
they comply with the requirements of environmental protection legislation. In some
cases, fume scrubbers, filters or engineering modifications to the process equipment
will be necessary to reduce emissions to acceptable levels.
Appropriate engineering
controls
Use only with adequate ventilation. Use process enclosures, local exhaust ventilation or
other engineering controls to keep worker exposure to airborne contaminants below any
recommended or statutory limits. The engineering controls also need to keep gas,
vapor or dust concentrations below any lower explosive limits. Use explosion-proof
ventilation equipment.
Wash hands, forearms and face thoroughly after handling chemical products, before
eating, smoking and using the lavatory and at the end of the working period.
Appropriate techniques should be used to remove potentially contaminated clothing.
Contaminated work clothing should not be allowed out of the workplace. Wash
contaminated clothing before reusing. Ensure that eyewash stations and safety
showers are close to the workstation location.
Individual protection measures
Date of issue/Date of revision

Section 8. Exposure controls/personal protection
Use a properly fitted, air-purifying or air-fed respirator complying with an approved
standard if a risk assessment indicates this is necessary. Respirator selection must be
based on known or anticipated exposure levels, the hazards of the product and the safe
working limits of the selected respirator.
Chemical-resistant, impervious gloves complying with an approved standard should be
worn at all times when handling chemical products if a risk assessment indicates this is
necessary. Considering the parameters specified by the glove manufacturer, check
during use that the gloves are still retaining their protective properties. It should be
noted that the time to breakthrough for any glove material may be different for different
glove manufacturers. In the case of mixtures, consisting of several substances, the
protection time of the gloves cannot be accurately estimated.
Safety eyewear complying with an approved standard should be used when a risk
assessment indicates this is necessary to avoid exposure to liquid splashes, mists,
gases or dusts. If contact is possible, the following protection should be worn, unless
the assessment indicates a higher degree of protection: chemical splash goggles.
Personal protective equipment for the body should be selected based on the task being
performed and the risks involved and should be approved by a specialist before
handling this product. When there is a risk of ignition from static electricity, wear antistatic protective clothing. For the greatest protection from static discharges, clothing
should include anti-static overalls, boots and gloves.
Appropriate footwear and any additional skin protection measures should be selected
based on the task being performed and the risks involved and should be approved by a
specialist before handling this product.
Section 9. Physical and chemical properties
3.2 kPa (23.998 mm Hg) [at 20°C]
Auto-ignition temperature
Closed cup: 32°C (89.6°F) [Pensky-Martens Closed Cup]
Not available.
Not available.
Kinematic (room temperature): <0.205 cm2/s (<20.5 cSt)
Kinematic (40°C (104°F)): <0.205 cm2/s (<20.5 cSt)
Partition coefficient: noctanol/water
Flammability (solid, gas)
Lower and upper explosive
(flammable) limits
Decomposition temperature
Date of issue/Date of revision

Section 10. Stability and reactivity
Hazardous decomposition
products
Avoid all possible sources of ignition (spark or flame). Do not pressurize, cut, weld,
braze, solder, drill, grind or expose containers to heat or sources of ignition. Do not
allow vapor to accumulate in low or confined areas.
Under normal conditions of storage and use, hazardous decomposition products should
not be produced.
Reactive or incompatible with the following materials:
oxidizing materials
Possibility of hazardous
reactions
Under normal conditions of storage and use, hazardous reactions will not occur.
No specific test data related to reactivity available for this product or its ingredients.
Section 11. Toxicological information
72 hours 300
Micrograms
Intermittent
Information on toxicological effects
Date of issue/Date of revision

Section 11. Toxicological information
Specific target organ toxicity (single exposure)
Specific target organ toxicity (repeated exposure)
Med. Aliphatic Hydrocarbon Solvent
Respiratory tract
irritation and
Narcotic effects
Respiratory tract
irritation and
Narcotic effects
Med. Aliphatic Hydrocarbon Solvent
Med. Aliphatic Hydrocarbon Solvent
ASPIRATION HAZARD - Category 1
Target organs
Classification
-1Known to be a human carcinogen.
Information on the likely
routes of exposure
No known significant effects or critical hazards.
May be fatal if swallowed and enters airways. Irritating to mouth, throat and stomach.
Causes skin irritation. May cause an allergic skin reaction.
Causes serious eye irritation.
Symptoms related to the physical, chemical and toxicological characteristics
Adverse symptoms may include the following:
irritation
redness
Adverse symptoms may include the following:
pain or irritation
watering
redness
Potential acute health effects
Date of issue/Date of revision

May cause damage to organs through prolonged or repeated exposure. Once
sensitized, a severe allergic reaction may occur when subsequently exposed to very low
levels.
May cause cancer. Risk of cancer depends on duration and level of exposure.
No known significant effects or critical hazards.
No known significant effects or critical hazards.
No known significant effects or critical hazards.
No known significant effects or critical hazards.
Adverse symptoms may include the following:
nausea or vomiting
Potential chronic health effects
Delayed and immediate effects and also chronic effects from short and long term exposure
Numerical measures of toxicity
Potential immediate
effects
Potential delayed effects
Potential immediate
effects
Potential delayed effects
Section 12. Ecological information
Acute LC50 >56000 ppm Fresh water
Fish - Gambusia affinis - Adult
Chronic NOEC 61 mg/g Fresh water
Fish - Oncorhynchus mykiss Juvenile (Fledgling, Hatchling,
Weanling)
Acute IC50 1.85 mg/l Marine water
Algae - Skeletonema costatum
Acute IC50 46 µg/l Fresh water
Algae - Pseudokirchneriella
subcapitata - Exponential growth
phase
Acute LC50 98 µg/l Fresh water
Daphnia - Daphnia magna Neonate
Acute LC50 1.1 ppm Fresh water
Fish - Oncorhynchus mykiss
Acute LC50 >1000000 µg/l Marine water
Fish - Fundulus heteroclitus
Acute EC50 20.565 mg/l Marine water
Acute LC50 6000000 µg/l Fresh water
Crustaceans - Gammarus pulex
Acute LC50 10000 µg/l Fresh water
Acute LC50 5600 ppm Fresh water
Fish - Poecilia reticulata
Chronic NOEC 4.95 mg/l Marine water
Chronic NOEC 0.016 ml/L Fresh water
Chronic NOEC 0.1 ml/L Fresh water
Daphnia - Daphnia magna Neonate
Chronic NOEC 5 µg/l Marine water
Fish - Gasterosteus aculeatus Larvae
Date of issue/Date of revision

Section 12. Ecological information
Bioaccumulative potential
No known significant effects or critical hazards.
Acute LC50 843000 µg/l Fresh water
Fish - Pimephales promelas
Persistence and degradability
Soil/water partition
coefficient (KOC)
Section 13. Disposal considerations
The generation of waste should be avoided or minimized wherever possible. Disposal
of this product, solutions and any by-products should at all times comply with the
requirements of environmental protection and waste disposal legislation and any
regional local authority requirements. Dispose of surplus and non-recyclable products
via a licensed waste disposal contractor. Waste should not be disposed of untreated to
the sewer unless fully compliant with the requirements of all authorities with jurisdiction.
Waste packaging should be recycled. Incineration or landfill should only be considered
when recycling is not feasible. This material and its container must be disposed of in a
safe way. Care should be taken when handling emptied containers that have not been
cleaned or rinsed out. Empty containers or liners may retain some product residues.
Vapor from product residues may create a highly flammable or explosive atmosphere
inside the container. Do not cut, weld or grind used containers unless they have been
cleaned thoroughly internally. Avoid dispersal of spilled material and runoff and contact
with soil, waterways, drains and sewers.
Section 14. Transport information
PAINT. Marine
pollutant (zinc
oxide)
Transport
hazard class(es)
Date of issue/Date of revision

Section 14. Transport information
Special
provisions
Not Applicable
The marine
pollutant mark is
not required when
transported in
sizes of ≤5 L or ≤5
kg.
Emergency
schedules (EmS)
F-E, S-E
Special precautions for user
Transport in bulk according
to Annex II of MARPOL
73/78 and the IBC Code
Special
provisions
Not Applicable
Special
provisions
(ERG#128)
Multi-modal shipping descriptions are provided for informational purposes and do not
consider container sizes. The presence of a shipping description for a particular
mode of transport (sea, air, etc.), does not indicate that the product is packaged
suitably for that mode of transport. All packaging must be reviewed for suitability prior
to shipment, and compliance with the applicable regulations is the sole responsibility
of the person offering the product for transport. People loading and unloading
dangerous goods must be trained on all of the risks deriving from the substances
and on all actions in case of emergency situations.
The
environmentally
hazardous
substance mark
may appear if
required by other
transportation
regulations.
Special
provisions
Not Applicable
Section 15. Regulatory information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other
reproductive harm.
Section 16. Other information
Hazardous Material Information System (U.S.A.)
Caution: HMIS® ratings are based on a 0-4 rating scale, with 0 representing minimal hazards or risks, and 4
representing significant hazards or risks Although HMIS® ratings are not required on SDSs under 29 CFR 1910.
1200, the preparer may choose to provide them. HMIS® ratings are to be used with a fully implemented HMIS®
program. HMIS® is a registered mark of the National Paint & Coatings Association (NPCA). HMIS® materials may
be purchased exclusively from J. J. Keller (800) 327-6868.
The customer is responsible for determining the PPE code for this material.
Date of issue/Date of revision

Section 16. Other information
It is recommended that each customer or recipient of this Safety Data Sheet (SDS) study it carefully and consult
resources, as necessary or appropriate, to become aware of and understand the data contained in this SDS and
any hazards associated with the product. This information is provided in good faith and believed to be accurate
as of the effective date herein. However, no warranty, express or implied, is given. The information presented
here applies only to the product as shipped. The addition of any material can change the composition, hazards
and risks of the product. Regulatory requirements are subject to change and may differ between various
locations and jurisdictions. The customer/buyer/user is responsible to ensure that his activities comply with all
country, federal, state, provincial or local laws. The conditions for use of the product are not under the control of
the manufacturer; the customer/buyer/user is responsible to determine the conditions necessary for the safe use
of this product. The customer/buyer/user should not use the product for any purpose other than the purpose
shown in the applicable section of this SDS without first referring to the supplier and obtaining written handling
instructions. Due to the proliferation of sources for information such as manufacturer-specific SDS, the
manufacturer cannot be responsible for SDSs obtained from any other source.
Date of issue/Date of revision