HAZCHEM Hot Cut Back Bitumen Sign

HAZCHEM Hot Cut Back Bitumen Sign – Hazardous Chemical Sign

The HAZCHEM Hot Cut Back Bitumen Sign (HAZCHEM 2Y, UN No. 3256) is used to ensure safety, legal compliance, and effective emergency response when handling, transporting, or storing cutback bitumen (UN 3256, Elevated Temperature Flammable Liquid, N.O.S.). The HAZCHEM code 2Y signifies that fine water spray (Code 2) should be used in case of fire, and breathing apparatus (Code Y) is required for protection.

Key Purposes:

• Emergency Response Readiness – Guides firefighters and emergency personnel on the correct firefighting and protective measures.
• Workplace & Public Safety – Warns workers, transporters, and the public about the flammable and heated nature of cutback bitumen.
• Legal Compliance – Ensures adherence to WorkSafe NZ, ADR, and HAZCHEM regulations for hazardous substances.
• Environmental Protection – Helps prevent improper spill responses, minimizing contamination risks.
• Clear Hazard Identification – Displays UN No. 3256, specifically classifying the substance as hot cutback bitumen, aiding authorities and handlers in managing it safely.

What is Cut Back Bitumen?
Cut back bitumen is bitumen that has been diluted with a volatile solvent such as kerosene or diesel. This lowers its viscosity, making it easier to apply in roading and spray-sealing applications. Because of the added flammable solvent, cut back bitumen presents a higher fire risk than standard bitumen, which is why clear Hazchem signage is mandatory.

Purpose

• Identify the presence of flammable cut back bitumen.

• Support emergency response with correct Hazchem code information.

• Help avoid accidental ignition and improve on-site safety.

Example Scenario

A roading contractor places this sign on all tanker trucks carrying cut back bitumen and posts it at the asphalt plant gate to keep staff and visitors informed.

Compliance

Meets NZS 5433, HSNO Regulations, and NZS/AS 1319:1994 for safety signage.

FAQs

Q1: Why do I need a Hot Cut Back Bitumen Hazchem Sign?
Because cut back bitumen is flammable and must be clearly identified to meet NZS 5433 and HSNO requirements for hazardous substances.

Q2: Where should I install this sign?
Install on bitumen sprayers, tanker trucks, and at depot or plant entry points to keep workers and responders informed.

Q3: Can this sign be magnetic for temporary use?
Yes — magnetic options are available for 300 × 225 mm, 450 × 337 mm, and 600 × 450 mm sizes for removable mounting.

The HAZCHEM Hot Cut Back Bitumen Sign warns of heated flammable materials containing volatile hydrocarbons. These substances can ignite or emit harmful vapours when hot. Learn how HAZCHEM codes help manage temperature-related hazards in Understanding HAZCHEM Signs in New Zealand & Australia.

Hot cut-back bitumen typically falls under Class 3 – Flammable Liquids due to its solvent content. Discover how these classifications affect transport and storage rules in Understanding Dangerous Goods Classes 1–9.

If hot bitumen is stored in bulk tanks or transported by road, you may need an Emergency Information Panel (EIP) showing the correct UN number, HAZCHEM code, and emergency actions. See Emergency Information Panel Signs Explained for full compliance details.

If your worksite smells more like a road crew in midsummer, you’re probably using the good stuff — hot bitumen! Pair this with our HAZCHEM Bitumen Sign to cover all bases and keep the crew (and your insurance) sweet as.

How to choose the right mounting options.

Corflute: short-term 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 to most surfaces.

Magnetic mounting option for the HAZCHEM Hot Cut Back Bitumen Sign

Flexible, vehicle-grade magnetic placards with the HAZCHEM Hot Cut Back Bitumen Sign printed on premium vinyl, laminated, and mounted to automotive magnetic sheeting. They stick to ferrous steel panels and remove without residue—ideal for vehicles that only carry DG sometimes.

Who they’re for

• Contractors / couriers who transport Dangerous Goods occasionally

• Hire or multi-use vehicles (no permanent signage)

• Sites that swap classes depending on load (quick changeover)

• Magnet: vehicle-grade sheet, 0.8–1.0 mm thick (30–40 mil), high-energy.

• Face film: outdoor self-adhesive vinyl + UV laminate (gloss).

• Operating temp: suitable from winter cold to summer heat (typical automotive range).

Where they work (and don’t)

• Works on: painted steel panels that are flat, clean, and smooth.

• Doesn’t work on: aluminium, stainless, plastics, composites, heavy body filler; vinyl wraps, ceramic coatings, heavily textured paint.

• If customers have aluminium doors/ute trays, suggest self-adhesive or rigid ACM instead.

Fitment checklist

1. Clean & dry the panel (no wax/polish).

2. Warm, flat magnet—no curl.

3. Apply to flat steel only; press from centre out.

4. Do not bridge panel gaps, ribs or sharp curves.

5. Remove daily to clean/dry both surfaces; store flat.

6. In heavy rain/highway speeds, check edges haven’t lifted.

Care & maintenance

• Remove and wipe after wet weather; store flat (never rolled tight).

• Move position slightly each week to avoid differential fading.

• Avoid use on freshly resprayed paint (allow full cure).

Compliance note

• Magnet is a mounting method. The operator must ensure placards are the correct class, size, and securely affixed for the journey. Some carriers or site rules may require permanent/rigid placards—check your procedure.

For more information check out these links

• WorkSafe NZ – Hazardous Substances Management
  👉 WorkSafe NZ – Hazardous substances

• EPA NZ – HSNO Act guidance
  👉 EPA NZ – Hazardous Substances and New Organisms (HSNO) Act

• United Nations GHS
  👉 UN – Globally Harmonized System (GHS)  

• Why you need the correct Hazard sign

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 sign’s 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. 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 of our safety signs to order and 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.