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How to Read and Use a Safety Data Sheet | Know the Hazard Before You Open the Container
Last Updated: 09/10/2026
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How to Read and Use a Safety Data Sheet

Know the Hazard Before You Open the Container

A Safety Data Sheet should not be something that gathers dust in a binder until somebody gets hurt. It is the manufacturer’s organized explanation of a chemical product’s hazards, required precautions, emergency procedures, and safe handling information.

If you spray, mix, clean, transport, or store coatings and solvents, the SDS belongs in your normal work routine. Read it before the container is opened—not while somebody is already looking for the eyewash station.

The working rule: Read the SDS before using an unfamiliar product, before changing the process, and before responding to a spill, exposure, or fire.

What Is a Safety Data Sheet?

A Safety Data Sheet, commonly called an SDS, communicates information about a hazardous chemical product. Older documents may be called Material Safety Data Sheets, or MSDSs. The modern OSHA-aligned format organizes the information under 16 standard section headings.

This consistent format helps workers find important information quickly. It does not mean every product presents the same hazards, requires the same protective equipment, or can be handled using the same procedures.

The SDS and Product Data Sheet Do Different Jobs

Document Primary Purpose Typical Information
Product Data Sheet How to prepare and apply the coating Mix ratio, reducer, pot life, film thickness, application conditions, recoat window, and cure
Safety Data Sheet How to recognize and control chemical hazards Health hazards, fire hazards, exposure controls, PPE, storage, spill response, first aid, and disposal information

A coating can be mixed correctly and still be handled unsafely. Conversely, a worker can wear protective equipment and still produce a failed finish by ignoring the Product Data Sheet. Professional work requires both documents.

The 16 Sections of a Safety Data Sheet

Section 1—Identification

Confirms the product identifier, recommended use, supplier information, and emergency telephone number. Start here to make sure the SDS matches the product actually being used.

Section 2—Hazard Identification

Summarizes the product’s classified hazards, signal word, hazard statements, precautionary statements, and label pictograms. This is the best section for a quick overview of what can go wrong.

Section 3—Composition and Information on Ingredients

Identifies hazardous ingredients and their concentrations or concentration ranges, subject to applicable trade-secret provisions. This section helps occupational-health professionals evaluate potential exposure.

Section 4—First-Aid Measures

Provides first-aid instructions for likely routes of exposure, including inhalation, skin contact, eye contact, and ingestion. It may also identify immediate or delayed symptoms and the need for medical attention.

Section 5—Fire-Fighting Measures

Identifies suitable extinguishing media, unusual fire hazards, hazardous combustion products, and protective measures for firefighters. This section should be reviewed when flammable coatings, reducers, or cleaning solvents are present.

Section 6—Accidental Release Measures

Explains emergency precautions, protective equipment, containment, and cleanup methods. A spill plan should be developed before a spill occurs and should reflect the products and quantities used at the facility.

Section 7—Handling and Storage

Describes safe handling, storage conditions, and incompatibilities. Look here before deciding where a product will be stored or whether it can share a cabinet or containment area with other chemicals.

Section 8—Exposure Controls and Personal Protection

Identifies applicable exposure limits, engineering controls, and recommended personal protective equipment. This section may address ventilation, respiratory protection, gloves, eye protection, and protective clothing.

Important: Do not select gloves or respirators by color, appearance, habit, or guesswork. Glove material must be compatible with the chemical, and respirator use requires an employer respiratory-protection program when OSHA requirements apply.

Section 9—Physical and Chemical Properties

Lists available physical and chemical characteristics such as appearance, odor, pH, flash point, flammability, vapor pressure, relative density, and viscosity. The exact information provided depends on the product and available data.

Section 10—Stability and Reactivity

Explains chemical stability, possible hazardous reactions, conditions to avoid, incompatible materials, and hazardous decomposition products.

Section 11—Toxicological Information

Describes likely exposure routes, symptoms, immediate and delayed effects, chronic effects, and available toxicity information. This section helps explain how exposure can affect the body.

Sections 12 Through 15

  • Section 12: Ecological information
  • Section 13: Disposal considerations
  • Section 14: Transport information
  • Section 15: Regulatory information

These sections can contain useful environmental, disposal, transportation, and regulatory information. OSHA requires the section headings to appear but does not enforce their informational content because other agencies regulate those subjects.

Section 16—Other Information

Includes the SDS preparation date or date of the last revision. Check this date when reviewing your chemical records. A current SDS should match the current product and supplier.

The Five-Minute Pre-Use SDS Review

Before using a new coating, hardener, reducer, cleaner, or solvent, review these sections first:

  1. Section 1: Confirm that the product name and intended use are correct.
  2. Section 2: Identify the main health, physical, and environmental hazards.
  3. Section 7: Check handling, storage, and incompatibility requirements.
  4. Section 8: Determine required engineering controls and PPE.
  5. Sections 4, 5, and 6: Know the first-aid, fire, and spill-response procedures.

Five minutes spent before the job can prevent hours—or months—of consequences afterward.

When Should the SDS Be Consulted?

  • Before introducing a new chemical into the workplace
  • Before mixing or spraying an unfamiliar coating system
  • Before selecting gloves, protective clothing, or respiratory protection
  • Before choosing a storage location
  • Before establishing spill-response procedures
  • Following a splash, inhalation exposure, spill, leak, or fire
  • When a process, product, supplier, or formulation changes
  • During employee training and workplace safety reviews

An SDS Is Information—Not the Entire Safety Program

The SDS is an important source document, but it cannot evaluate every condition inside your facility. The employer must consider the actual process, quantity used, spray method, ventilation, exposure duration, booth configuration, nearby ignition sources, and other chemicals in the work area.

Spraying can create exposure conditions that are very different from brushing or rolling. Atomized material may increase inhalation and skin-exposure concerns. The written hazard-communication program, workplace labeling, employee training, ventilation, PPE selection, and emergency planning must work together.

SDS Accessibility and Employee Training

Employees must be able to access Safety Data Sheets readily during their work shift. Electronic systems may be useful, but access should not disappear because the internet is down, a password is unavailable, or the only person who knows the system has gone home.

Workers should be trained to understand the workplace’s labeling system, find the correct SDS, locate critical information, and follow established emergency procedures. Handing someone a binder is not the same thing as teaching that person how to use it.

Emergency Reminder

In an exposure, spill, or fire emergency, follow the facility’s emergency plan and the product-specific SDS. Contact emergency services or the product manufacturer’s emergency number when appropriate.

Do not delay urgent medical care while trying to interpret a document. When possible, provide responders with the correct product label and SDS.

A Practical Shop Checklist

  • Maintain an inventory of workplace chemicals.
  • Keep the current SDS for every hazardous chemical.
  • Verify that the SDS matches the product identifier on the label.
  • Make SDSs readily accessible on every applicable shift.
  • Train employees to find and understand critical sections.
  • Evaluate ventilation and other engineering controls.
  • Confirm chemical compatibility before selecting gloves.
  • Maintain appropriate spill-control materials.
  • Keep ignition sources away from flammable materials and vapors.
  • Review procedures whenever products or processes change.

The Bottom Line

The safest chemical is not necessarily the one with the mildest odor, the cleanest label, or the container you have used for years. The safest operation is the one in which the hazards are understood, exposures are controlled, workers are trained, and emergency procedures are ready before they are needed.

Read the label. Read the Product Data Sheet. Read the Safety Data Sheet. Then make sure the shop’s controls and work practices agree with what those documents tell you.

Know the product. Control the exposure. Be ready for the unexpected.

A Safety Data Sheet earns its place in the shop when people know how to use it.

Official Safety Resources

Safety notice: This article provides general educational information and does not replace the product manufacturer’s instructions, a site-specific hazard assessment, employee training, or applicable OSHA, fire-code, environmental, and local regulatory requirements.

Copyright © 2026 Azimuth Spray Systems, LLC. All rights reserved.
AirSprayTech.com—The Finishing Authority®



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