If you’ve ever stood beside a loaded truck pulling a trailer covered in a thick, matte tarpaulin as it rumbled down the highway, you’ve interacted with one of the most underrated workhorses of the logistics industry. As a supplier of PVC coated truck tarpaulins, I get asked this question all the time by new fleet managers, owner-operators, and even people who just stumble onto our website wondering about the stuff they see on every semi-truck: “What’s the color fastness of a PVC coated truck tarpaulin?” PVC Coated Tarpaulin (Truck Tarpaulin)
It’s not a trivial question. When you’re spending thousands on a custom fleet to haul everything from fresh produce to heavy construction materials, you don’t want your tarps fading to a pale, washed-out mess after just a few months of sun and road grime. Color fastness isn’t just about how good your trucks look— it’s a marker of quality that ties directly to durability, cost, and how well your cargo stays protected from the elements. Let’s break this down like we do with every customer who calls our sales line: not with jargon, but with the real-world science that goes into every roll we coat.
First, let’s define color fastness in the context of PVC truck tarps, because it means something specific here, not just a vague “does it stay colorful?” Color fastness measures how well the material resists fading or discoloration when exposed to the three things that kill outdoor materials: ultraviolet (UV) radiation from the sun, water (including rain, humidity, and road spray), and mechanical abrasion from wind, cargo, or being dragged over trailer edges. For our tarps, we test color fastness against two core industry standards that aren’t made up— they’re the same ones every reputable tarps supplier uses, because fleet managers around the world recognize them.
The first is the AATCC Test Method 186, which measures color fastness to light, specifically artificial xenon arc light that mimics natural sunlight over time. The second is ISO 105-B02, another international standard for light fastness, plus ISO 105-E01 for color fastness to water. When we say our tarps meet or exceed these standards, that’s not a sales line— that’s data from our in-house testing lab and third-party audits we run every quarter.
Now, why does PVC coating matter so much here? You might be thinking, “It’s just plastic, right? Why do some tarps fade faster than others?” The answer is in the formulation of the PVC itself, and how the color pigments are bonded into that coating. Low-quality, cheap tarps you buy at a big-box store or from a no-name supplier use two things that kill color fastness: unbonded pigments that just sit on the surface of the PVC, and cheap, generic stabilizers that can’t block UV rays.
When you leave that tarp on a truck for 12 hours a day in Phoenix in July, or drive through salt spray on coastal highways in Florida, those unbonded pigments rub off onto your cargo or wash away when it rains, leaving the tarp looking dull and patchy. The cheap stabilizers break down in months, letting UV radiation eat through both the color and the PVC layer itself. Our tarps? We use a 100% virgin PVC coating, not the recycled PVC a lot of cut-rate suppliers use, because recycled PVC has impurities that react with sunlight and break down faster. We also use what’s called “integral pigmentation”— that means we mix the color pigments directly into the PVC resin before it’s coated, not just sprayed on top. So when you run your hand over the tarp, you’re not wiping off color— you’re feeling the same pigment that’s embedded into every layer of the coating.
Let’s get into the real test: what’s the actual performance number you can expect from a quality PVC truck tarp, like the ones we supply? The light fastness rating, on that blue wool scale that’s part of AATCC and ISO testing, is a 4 to 5. Wait, what does that mean? The blue wool scale runs from 1 (very poor fade resistance) to 8 (excellent). A rating of 4 means the tarp will only show very slight fading after 1000 hours of exposure to xenon arc light, which is roughly equivalent to 2-3 years of actual outdoor use in moderate climates, like the Pacific Northwest or parts of Europe. A 5 rating? That’s where our premium line hits. That means it takes over 1500 hours of intense light exposure to show even minimal fading, which translates to 4-5 years of heavy use in harsh climates, like Arizona, Texas, or coastal areas with high UV and salt air.
That’s a big difference, right? Let me put that in terms you care about as a fleet manager. If you buy a cheap tarp that fades in 18 months, you’re replacing it twice as often as you would a premium tarp. Not only does that cost you more in upfront costs, but you’re spending time and labor taking old tarps off and putting new ones on— time you could be using to move cargo and make money. I had a customer call me last year who’d been buying tarps from a supplier in Mexico for his 20-truck fleet. He said every year and a half, he was pulling all his tarps off to replace them, and the faded ones looked so bad he’d get pulled over by DOT officers thinking they were “unsafe” even when they worked fine. He switched to our premium line, and two years later, he told me he hadn’t replaced a single tarp. That’s the real-world impact of color fastness, not just a number on a test sheet.
But wait, color fastness isn’t just about sun exposure. What about water fastness? If you haul produce or other cargo that can get stained by fading tarps, that’s a huge deal. The test for water fastness uses a standard water solution, and our tarps get a rating of 4-5 on that scale too. What that means is, even after being soaked and dried repeatedly over months, the color doesn’t bleed or transfer onto your cargo. We had a customer last quarter who hauls strawberries to grocery stores on the West Coast— he told me he’d had bad experiences with cheap tarps before, where the red tarp would bleed onto the strawberry crates, leading to rejected shipments and thousands in losses. Since he switched to our tarps, he hasn’t had a single rejected load due to tarp staining. That’s another piece of color fastness that people don’t talk about until they have a problem.
Now, I want to be honest with you— color fastness isn’t something you can just look at on a tag. A lot of suppliers will claim their tarps have “excellent color fastness” but don’t have the test data to back it up. That’s why when you’re comparing suppliers, you should ask for two things: their test reports from AATCC or ISO, and real customer testimonials, not just sales copy. We post our latest test reports on our website for every line of tarps we make, and we have a page of over 200 customer reviews from fleet managers who’ve been using our tarps for 5+ years.
There are also a few things you can do to maintain the color fastness of your PVC tarps, even the best ones. First, don’t leave your tarps hanging in the sun when they’re not in use. If you’re at a terminal overnight, tuck them in or cover them with a tarp cover if possible. Second, avoid using harsh chemicals to clean your tarps— a mild soap and water solution is all you need. Power washing at high pressure can scratch the surface of the PVC and remove some of the pigment over time. Third, don’t drag your tarps over concrete or sharp edges when you’re putting them on or taking them off— abrasion is the number one cause of color wear even on the best PVC.
I often get asked, “Is all PVC coated tarp color fastness the same?” The short answer is no, and that’s why our product stands out. We’ve been in this business for 18 years, and we’ve tested hundreds of formulations over that time. We found that the tarps that performed best had a specific mix of PVC resin, UV stabilizers, and pigment loading that didn’t sacrifice durability for color. A lot of suppliers will cut costs by using less pigment, which makes the tarp cheaper upfront, but it fades way faster. We use 10-12% pigment loading in our premium tarps, which is the sweet spot— enough to keep color vibrant for years, but not so much that it weakens the PVC coating.
Another common misconception: people think darker colors fade faster than lighter ones. For PVC tarps, that’s partially true, but only if you’re using cheap pigments. Black and dark blue tarps usually have higher pigment loading anyway, so with quality formulation, they actually hold color better than lighter colors, like white or light gray. We tested our light gray tarps last year, and they still had a rating of 4.5 after 1000 hours of light exposure, which is far better than the average for light-colored tarps on the market.
At the end of the day, color fastness for PVC truck tarps is about more than just how pretty your fleet looks. It’s about reducing replacement costs, protecting your cargo from damage, and avoiding the headaches that come with poorly performing equipment. When you invest in a quality tarp with proven color fastness, you’re investing in less downtime, fewer rejected loads, and a fleet that looks professional for years.
If you’re in the market for new tarps for your fleet, and you want to talk about color fastness, test data, or custom sizes for your trailers, we’re here to help. We can send you a sample of any of our lines, along with the official test reports, so you can see for yourself how our tarps perform. Don’t settle for cheap tarps that fade in a year— invest in tarps that are built to last, and your bottom line will thank you.
If you’d like to discuss your specific needs, request a sample, or get a quote, don’t hesitate to reach out to our sales team for a consultation.
TPU Finished Product References:
AATCC Test Method 186-2018, Color Fastness to Light: Xenon Arc Fading Lamp Method
ISO 105-B02:2014, Textiles – Tests for colour fastness – Part B02: Colour fastness to artificial light: Xenon arc fading lamp
ISO 105-E01:2013, Textiles – Tests for colour fastness – Part E01: Colour fastness to water
Nanjing PrimeTex New Materials Technology Co., Ltd.
Address: An Teng international plaza Q ianjia Street,WuChang District, WuHan,Hubei.China
E-mail: wuhbaoxing@gmail.com
WebSite: https://www.primepvc.hk/
