When we claim that our patented U3 signage sets the global benchmark for durability, capable of enduring more than 40 years in the harshest outdoor conditions, what evidence do we have to back this up?

In the world of safety signage, where durability meets compliance, Identimark's U3 signage stands out as a beacon of innovation and reliability. This article delves into the heart of what makes U3 signage the choice for industries exposed to the harshest environmental conditions, spotlighting the accelerated weather testing and advanced materials that contribute to its unmatched durability and longevity.

At the forefront of U3's exceptional performance is its unique composition. Crafted from a UV-blocking 2mm polymer resin and supported by marine-grade aluminum, U3 signs are engineered to withstand the relentless assault of the elements. This isn't just another safety sign; it's a meticulously designed product that guarantees your safety messages remain clear and compliant for life, tested to last outdoors for over 40 years. 

But what really sets U3 signage apart, and confirms its position in the market as the World’s longest lasting sign, is the rigorous accelerated weather testing it undergoes at the Allunga Exposure Laboratory in Townsville, Northern Queensland - one of only two such testing facilities globally.

Allunga Exposure Laboratory

Allunga Exposure Laboratory, renowned for its expertise in simulating extreme weather conditions, serves as the proving ground for U3 signage. Here, U3 samples are exposed to some of the highest naturally occurring UV radiation levels on Earth, thanks to Townsville's location within the Tropic of Capricorn. This unique setting enables the laboratory to replicate over 40 years of environmental wear in a condensed time frame, providing a realistic simulation of natural weathering.

The ALTRAC (Allunga Laboratory Tracking) testing method is at the heart of this process.



It employs Fresnel-like arrays of mirrors to multiply solar radiation, focusing the sun's rays onto the test samples. This method not only maximises exposure to UV radiation but also allows the samples to experience natural moisture and condensation cycles, mimicking real-world conditions with unparalleled accuracy. 

The outcome? 

U3 signage demonstrates remarkable resilience, showing minimal to no change in color, gloss, or structural integrity, effectively earning a rating of 0 or 1 on Allunga's scale of weathering change.

This extensive testing underscores the superior quality of U3 signage. 

Its fade-free, anti-graffiti, anti-glare, and fire-retardant properties are not just claims; they are proven qualities that ensure your safety messages endure, even in the most demanding environments. From coastal areas with high salt exposure to urban settings fraught with pollution and grime.

You can download an overview of the testing results here

For industries ranging from renewable energy to mining, gas, and rail, the choice of signage can profoundly impact safety, compliance, and environmental responsibility. 

U3 signage represents the pinnacle of signage technology, offering unmatched durability and longevity backed by rigorous testing and advanced materials. 

For businesses and industries facing the relentless challenges of the natural environment, U3 signage by Identimark isn't just an option; it's the solution.

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