In the fast-paced world of transport operations, cleanliness is not just about appearance – it’s vital to safety, hygiene, and regulatory compliance. Whether it’s maintaining a passenger fleet, depots, stations, or cargo vehicles, the use of chemical cleaners plays a central role.

Yet many transport operators unknowingly make mistakes in how they use these products, leading to inefficiencies, damaged surfaces, or health and safety risks. Are your cleaning procedures as safe and effective as they should be?

We’ve put together five of the most common chemical cleaning mistakes in the transport industry and how you can avoid them!

1.     Improper dilution of chemical cleaners

How precise is your dilution process? One of the most widespread issues in professional cleaning is the incorrect dilution of chemical products. Over-diluting can make a disinfectant ineffective against bacteria and viruses. Under-diluting, on the other hand, can lead to corrosion, residue build-up, or harm to surfaces and equipment.

The UK’s Health and Safety Executive (HSE) warns that incorrect dilution of cleaning chemicals is a key cause of both ineffective cleaning and worker injury, especially when strong substances are used without the right controls. Similarly, the British Institute of Cleaning Science (BICSc) advocates for accurate dilution as part of professional cleaning training, highlighting that misuse of concentrated products can lead to legal non-compliance and unnecessary damage.

How to avoid it:
Always follow the manufacturer’s dilution instructions precisely. Never estimate by eye. Use properly calibrated dosing tools or automated dilution equipment to ensure consistent results. Provide thorough training to cleaning operatives so they understand the risks of incorrect dilution and the benefits of doing it right.

2. Mixing incompatible chemicals

Have you ever mixed chemicals to “boost” their power?

Some cleaning staff assume that combining products will make cleaning faster or more effective. However, this is a dangerous and sometimes illegal practice. For example, mixing bleach with acidic cleaners or ammonia can create toxic gases such as chloramine or chlorine, which can cause respiratory distress or even death.

According to the UK Health and Safety Executive (HSE), accidental chemical reactions in the workplace are a common cause of injuries in cleaning-related tasks (HSE).

How to avoid it:
Never mix cleaning products unless they are specifically designed to be used together. Review each product’s Safety Data Sheet (SDS) and ensure your staff are trained to understand chemical compatibility. Consider a colour-coded system and clear labelling to prevent confusion.

3. Skipping surface compatibility testing

Do you test before using new cleaning agents? Applying a chemical cleaner without first verifying that it’s suitable for the surface can cause lasting damage. In transport environments, this may include discolouration of vehicle interiors, corrosion of control panels, or degradation of specialist materials.

For instance, some disinfectants can damage touchscreen displays, rubber gaskets, or painted metal surfaces commonly found in transport vehicles.

How to avoid it:
Always conduct a spot test on a small, inconspicuous area before full application. Ensure the cleaner has been tested and approved for use on transport materials. Consult manufacturers or technical support for confirmation, or take a look at the TfL cleaning guide.

4. Lack of personal protective equipment (PPE)

Chemical exposure is a significant risk in professional cleaning, particularly in enclosed spaces such as buses, trains, and underground stations. Failing to use the correct PPE can lead to burns, eye injuries, and long-term respiratory problems.

According to the UK Government’s COSHH regulations (Control of Substances Hazardous to Health), employers must provide adequate PPE and training to those using chemical substances.

How to avoid it:
Assess the risks of each cleaning product and ensure that appropriate PPE is available and worn. This may include gloves, safety goggles, masks, or aprons, depending on the task. Regular training sessions should reinforce proper procedures and emergency protocols.

5. Poor chemical storage and labelling

Where are your cleaning chemicals stored, and are they labelled properly?

Transport depots and storage rooms are often shared spaces, increasing the likelihood of chemicals being stored incorrectly or mixed accidentally. Improper storage may cause chemical degradation, cross-contamination, or unauthorised access to hazardous substances.

Unlabelled or incorrectly labelled containers are also a serious risk, leading to misuse or emergency confusion.

How to avoid it:
Store chemicals in a cool, dry, and ventilated space, away from direct heat or sunlight. Use secure, lockable storage units and segregate incompatible substances. All containers must be clearly labelled with the product name, hazard information, and expiry dates. Read the COSHH regulations on safe chemical storage here.

Why getting your transport cleaning routine right matters

By avoiding these five common chemical cleaning mistakes, transport fleet managers and station operators can:

• Improve hygiene outcomes
• Extend the lifespan of vehicles and facilities
• Minimise risks to staff and passengers
• Ensure compliance with UK health and safety legislation

Effective chemical cleaning doesn’t just protect surfaces, it protects people, reputations, and operations!

At Chela, we understand the complex needs of the transport sector. Our chemical solutions are tailored to be effective, compliant, and safe for surfaces commonly used across bus, rail, aviation, and freight environments. Browse our cleaning solutions, or get in touch today.

Why not take a look at our complete guide to train interior cleaning or use our checklist for proper bus and train cleaning?