Warning sign - yellow triangle
Chemical Signs
Chemical signs tell people where chemicals are stored, used or handled so they take the right care. These printable chemical signs cover chemical hazard, chemical store, chemicals in use, spills, unloading areas and keeping chemicals locked away, plus a plain red 'do not mix chemicals' notice. Print on A5 for cupboards, A4 for doors and A3 for large stores. Flammable, corrosive, poisonous and gas hazards have their own sign pages linked below.
Warning chemical hazard sign
Sign text: "Warning / Chemical hazard". PDF, 16 KB. A5, A4 or A3, portrait or landscape.
Buy a durable version
Rigid plastic, aluminium or self-adhesive chemical signs, ready to put up. The pictures are our own free designs, not the Amazon products.
Chemical store warning sign
View on Amazon - Chemical store warning sign (affiliate link, opens in a new tab)
Lockable chemical storage cabinet
View on Amazon - Lockable chemical storage cabinet (affiliate link, opens in a new tab)
Chemical spill kit
View on Amazon - Chemical spill kit (affiliate link, opens in a new tab)
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Choose your wording
7 versions. Each one downloads as a PDF in A5, A4 or A3, portrait or landscape.
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Chemical store
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Caution chemicals in use
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Chemical spill - keep away
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Chemical unloading area
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Keep chemicals locked away
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Do not mix chemicals
Download all 7 signs
Every wording, size and orientation in one ZIP file, 616 KB.
Print tips
- Print at "actual size" or 100%, not "fit to page", so the margins stay even.
- Use thicker paper or card (160gsm or more) if the sign will be handled.
- For outdoor or long-term use, laminate it or buy a rigid version.
Where to use it
- Cleaning cupboards and stores
- Workshops, garages and maintenance rooms
- Unloading bays
- Pool plant rooms and utility areas
- Labs and school prep rooms
Questions
Do chemical signs replace product labels or safety data sheets?
No. Product labels and safety data sheets stay essential; signs tell people where chemicals are.
Which sign for flammable chemicals?
See the flammable signs page.
Do I need to lock chemicals away?
That depends on the substance and your risk assessment.
Can I add my own wording?
Choose a symbol-only sign on a related page, or write on the printed sign.
Related signs
Corrosive Signs
Poison Signs
Gas Signs
Flammable Signs
Hazardous Substance Signs
Warning SignsWarning class. A yellow triangle with a black edge warns of a hazard. All health and safety signs