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Caution Always Add Water To Acid Sign
$13.50 – $48.50Price range: $13.50 through $48.50 exc. GST
Health and Safety Caution Sign – “Caution Always Add Water To Acid Sign”
This “Caution Always Add Water To Acid” sign helps prevent dangerous chemical reactions by clearly instructing proper acid dilution procedures. Suitable for industrial, lab, or workplace environments.
- Standard sizes are available.
- Laminated
- Supplied as an adhesive vinyl sticker or mounted on Corflute, PVC and ACM panel
- Meets industry standards
Caution Always Add Water To Acid Sign
Caution Always Add Water To Acid Sign – Ensure safety when handling hazardous substances with our “Caution Always Add Water To Acid” sign. Designed for workplaces, laboratories, and chemical handling zones, this sign reminds staff to follow best practices and avoid accidents during dilution.
Manufactured using high-quality, durable materials, this sign is resistant to chemicals and moisture, making it ideal for harsh or wet environments. Available in multiple sizes and finishes to suit your location’s needs.
Key Features:
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Clearly communicates correct acid dilution procedure
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Helps reduce risk of dangerous chemical reactions
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Suitable for indoor and outdoor use
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Chemical-resistant and easy to clean
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NZ safety standards compliant
Frequently Asked Questions
Q: Why is it important to always add acid to water and not the other way around?
A: Adding acid to water prevents a highly exothermic reaction that could cause dangerous splashing or explosion. This sign reinforces safe dilution practices in workplaces.
Q: Where should this Caution Always Add Water To Acid Sign be displayed?
A: It should be prominently placed in any area where chemical mixing or acid dilution occurs — such as labs, industrial settings, and chemical storage facilities.
Q: Is this sign suitable for outdoor use?
A: Yes. When mounted on ACM or PVC panel, the sign is highly weather-resistant and suitable for long-term outdoor use.
Q: What sizes and materials are available?
A: This Caution Always Add Water To Acid Sign is available in Corflute (short term), Thin PVC (medium term), and ACM (long term). All options are durable and clearly legible.
Q: Does this Caution Always Add Water To Acid Sign comply with New Zealand safety standards?
A: Yes, it adheres to NZS/AS 1319:1994 requirements for safety signage, including clear messaging and visibility.
Not sure if you’ve got all the safety signage you need?
Download our Free Safety Signage Checklist to make sure your workplace complies with New Zealand safety standards — it’s a quick and easy way to identify missing signs and stay compliant.
How to choose the right mounting options.
Corflute: short term less than 2 years outdoors
Thin PVC: Medium term, more than 2 years
ACM: Long term 5 years or more
Supplied as a sticker:
long term digital print laminated for long term use. With a life of 5 years or more. We use a Hi Tac vinyl which allows it to be applied most surfaces.
For further information go to the Worksafe website https://www.worksafe.govt.nz/topic-and-industry/hazardous-substances/managing/hazardous-substances-signs/
NZS/AS 1319:1994 advocates simplicity and clarity in safety signage. To be effective, they should be easy to read and interpret at a glance.
The Standard is about the use of legible text and appropriate, simple symbols.
By simplifying the message, it reduces the risk of misinterpretation, which increases the chances of the sign’s warning or instruction being followed.
Enhancing the signs visibility through placement and colour
Placement and visibility will play a crucial role in the efficiency of safety signs.
The standard states that signs must be positioned near the hazard they are warning about, which ensures that the safety message is relevant. Also it advocates the use of contrasting colours for the background and lettering. This attention to the colour scheme will increase visibility and readability from a reasonable distance, which ensures the message is accessible.
The mission of Hazard Signs NZ is to provide quality-made safety signs to all of New Zealand and Australia. Our great prices and convenient online ordering platform make us a preferred supplier to many NZ businesses. All our signs are designed and manufactured in Invercargill to meet the workplace health and safety needs of all businesses and industries in New Zealand.
Please note: We make some safety signs to order and therefore it may take 5 to 10 business days to receive. If you require your order urgently, please don’t hesitate to contact us to confirm an estimated delivery date prior to placing your order.
If you are not sure about what sign you need for your business, just contact us at +6432183350 or email us and we will make it ready for you.
WHAT SIZE SAFETY SIGN DO I NEED?

| Size | 300mm x 225mm, 450mm x 337mm, 600mm x 450mm |
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| Material | Self Adhesive Vinyl Sticker, Corflute Sheet, Thin PVC Sheet, ACM Metal sheet |
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