10 Year Outdoor Fade Test Case Study, Enamel Painted Aluminum Tags

How long will painted aluminum tags last outdoors?

It is one of the most common questions we receive from customers who want to use colored aluminum tags outdoors. To help answer that question with real world data, National Band & Tag conducted a long-term outdoor fade test using our enamel painted aluminum material.

We mounted painted aluminum strips on the roof of our facility in Newport, Kentucky and left them exposed to the elements year after year.

Now, after more than 10 years of outdoor exposure, we wanted to share the results.

Test Conditions

The enamel painted aluminum strips were mounted outdoors on the roof of our Newport, KY facility. Newport experiences all four seasons, including:

• Hot and humid summers
• Freezing winters
• Heavy rain
• Snow and ice
• Strong UV exposure during summer months
• Temperature swings throughout the year

This created a realistic long-term environment for evaluating outdoor durability.

To help measure fading, a 3 inch wide board was secured down the center of the strips. The board protected the middle portion of each strip from direct sunlight while the exposed ends remained fully subjected to UV rays and weather exposure.

This allowed us to directly compare protected versus exposed areas on the same piece of material.

10 Year Fade Test Results

After more than a decade outdoors, most colors continued to perform very well with minimal noticeable fading.

However, two colors showed more significant UV breakdown over time.

Red Enamel Painted Aluminum

Red showed the most noticeable fading during the test. Based on our long-term outdoor observations, the red enamel paint maintained good color stability for approximately 5 years before significant fading became noticeable. After extended UV exposure, the exposed areas gradually shifted toward an orange appearance. By year 10, the contrast between the UV protected center section and exposed ends became very noticeable.

Gold Enamel Painted Aluminum

Gold also showed visible fading over time. Based on our observations, the gold enamel paint maintained good appearance for approximately 6 years before more noticeable fading began to occur. While the fading was not as dramatic as the red, the exposed sections became lighter and less vibrant after years of direct outdoor exposure.

Colors That Performed Well After 10 Years

All of the other colors that were tested, Purple, White, Turquoise, Black, Yellow, Orange, Blue, and Green, all had minimal fading.

While all outdoor materials naturally weather over time, these colors demonstrated excellent long-term durability in direct outdoor exposure.

What We Recommend for Long-Term Outdoor Applications

Based on our outdoor testing, most enamel painted aluminum colors, with the exception of red and gold, have demonstrated strong outdoor durability for 10+ years in direct weather exposure.

However, if your application requires maximum long-term color stability with minimal fading, we typically recommend either:

• Plain Aluminum with stamped characters
• Black UV Stable Aluminum with laser etched marking

Stamped plain aluminum avoids painted surface fading altogether and remains a popular option for utility pole tags, numbered tree tags, industrial, and outdoor identification applications.

Our Black UV Stable Aluminum is specifically designed for long-term outdoor exposure and has demonstrated durability exceeding 20+ years outdoors. The white laser etched marking on the black background also provides excellent contrast and readability for serial numbers, barcodes, and QR codes.

Real World Testing Continues

The test strips remain outdoors today and the evaluation is ongoing. We believe real world exposure testing provides valuable information that helps customers choose the right material for their environment and expected lifespan.

If you have questions about outdoor tag materials or need help selecting the best option for your application, our team is happy to help.

To request a quote visit: https://www.nationalband.com/ordering-form

Disclaimer: Due to differences in monitor, phone, and screen settings, colors shown in photos may not appear exactly the same for every viewer. The fade test images are intended to demonstrate general outdoor performance and color stability over time.