What materials are used in New Generation IMO signs?

New Generation IMO signs are made from PVC-free and halogen-free materials — a deliberate engineering choice that sets them apart from conventional marine safety signage. These advanced material compositions are designed to meet and exceed international maritime safety standards while eliminating toxic combustion byproducts that pose serious risks to crew and passengers during onboard emergencies. The sections below unpack exactly why these material choices matter, how they perform under pressure, and what they mean for your vessel’s compliance and sustainability profile.

Why are New Generation IMO signs made from halogen-free materials?

New Generation IMO signs are made from halogen-free materials because halogens such as chlorine and bromine release highly toxic gases when they burn. In a shipboard fire, where evacuation corridors fill with smoke rapidly, those gases can incapacitate crew and passengers before they even reach an exit. Eliminating halogens from IMO signage directly reduces this life-safety risk.

Traditional plastics commonly used in signage often contain halogenated flame retardants or PVC compounds. When these materials combust, they generate hydrogen chloride and other corrosive, poisonous gases that damage the respiratory system and compromise visibility. On a vessel where every second counts during an emergency, this is an unacceptable trade-off.

Halogen-free construction also protects the ship’s infrastructure itself. Corrosive combustion gases from halogenated materials can damage electrical systems, control panels, and structural components, compounding the damage from the original fire event. By specifying halogen-free IMO signage, shipbuilders and fleet operators reduce both human and structural risk simultaneously.

What does PVC-free construction mean for a marine safety sign?

PVC-free construction means the sign substrate and any protective layers contain no polyvinyl chloride. For a marine safety sign, this eliminates one of the most problematic materials in fire scenarios, since PVC combustion produces hydrogen chloride gas, dioxins, and dense black smoke — all of which severely impair evacuation in enclosed shipboard spaces.

Beyond fire safety, PVC-free materials offer practical performance advantages in the marine environment. PVC can become brittle under prolonged UV exposure and in extreme cold, which compromises the physical integrity of signs over time. Alternative polymer substrates used in New Generation IMO signs are engineered for flexibility and dimensional stability across a much wider temperature range.

There is also a regulatory dimension to this choice. As IMO and flag state requirements continue to evolve, materials that were once acceptable are increasingly scrutinized. Specifying PVC-free signage today positions a vessel ahead of tightening compliance requirements rather than behind them — a consideration that matters significantly to project managers working on new builds intended for long service lives.

How do New Generation IMO sign materials perform in extreme conditions?

New Generation IMO sign materials are engineered to perform reliably across an exceptionally wide operational range, from -40°C to +150°C, making them suitable for everything from Arctic deployments to engine room environments. The materials resist UV degradation, salt spray, humidity, and chemical exposure — all conditions routinely encountered across a vessel’s operational lifetime.

The photoluminescent variants used in evacuation and safety signs retain their light-emitting properties even after extended exposure to harsh marine conditions. This is critical because a sign that fades, warps, or delaminates after a few years of service undermines the entire safety system it is part of. Long-term legibility is not just a quality consideration; it is a compliance requirement under SOLAS.

Our New Generation IMO signs are rated for over 150,000 hours of service life, which translates to decades of reliable performance in demanding environments. This durability reduces the total cost of ownership significantly compared to lower-specification alternatives that require more frequent inspection, replacement, and associated downtime.

What standards govern the material requirements for IMO signs?

The primary standards governing IMO sign material requirements are IMO Resolution A.752(18) and ISO 15370:2021, which define performance criteria for low-location lighting and safety signs used aboard ships. These standards specify requirements for luminance, durability, and material behavior under fire conditions, including restrictions on toxic emissions.

For photoluminescent signs specifically, ISO 15370:2021 sets the benchmark for afterglow performance and longevity. Signs must demonstrate sustained luminance output after a defined charging period, and the materials must maintain this performance across their rated service life. Meeting this standard requires careful selection of both the photoluminescent pigment and the substrate it is bonded to.

Our products are manufactured in accordance with these international standards, and our New Generation IMO signs are designed to exceed standard requirements by a factor of four in key performance categories. This margin of compliance is not incidental — it reflects a deliberate engineering approach that gives fleet operators confidence their signage will remain compliant even as standards are periodically revised upward.

Are New Generation IMO signs recyclable and environmentally sustainable?

Yes, New Generation IMO signs are 100% recyclable. The halogen-free and PVC-free material composition that makes these signs safer in fire conditions also makes them significantly more straightforward to recycle at end of life, avoiding the contamination issues associated with PVC and halogenated plastics in conventional waste streams.

Sustainability in marine safety products is increasingly relevant as shipowners and operators face growing environmental reporting requirements and port state scrutiny. Choosing signage made from environmentally responsible materials contributes to a vessel’s overall environmental profile and aligns with the broader sustainability commitments many shipping companies now publish publicly.

The long service life of these materials adds another layer of environmental benefit. A sign rated for over 150,000 hours of use requires far fewer replacements over a vessel’s operational life than lower-quality alternatives. Fewer replacements mean less manufacturing energy, less packaging waste, and fewer logistics movements — all of which reduce the total environmental footprint of the safety signage system across the vessel’s lifetime.

For shipbuilding project managers and fleet operators sourcing IMO signage for new builds or retrofits, the material specification of New Generation IMO signs represents a convergence of safety performance, regulatory compliance, and genuine environmental responsibility — three priorities that, in this case, reinforce rather than trade off against each other.