If you’ve ever picked up a pair of metal eyeglass frames and set them down on a hard counter, or tucked them into the top of a backpack with keys and coins, you’ve probably wondered: Do metal eyeglass frames scratch easily? As a supplier of metal frames, I get this question every single week—sometimes from customers holding a pair with a faint scuff, confused if that’s normal, other times from boutique optical shops vetting stock for their clients. The truth isn’t a simple yes or no; it depends on the type of metal, how the frame is finished, and how you care for it. Let’s break this down, from the lab-tested hardness of different metals to the small, common habits that cause scratches, and what we’ve learned as a supplier to help our customers (and their end users) avoid unnecessary damage. Metal Eyeglass Frames
First, let’s talk about what makes a metal scratch in the first place. Scratches on frames are tiny gouges left when a harder material—say, a steel nail, a diamond in a ring, or even another piece of metal—is dragged across the surface. Hardness, measured on the Mohs scale, tells us how resistant a material is to being scratched; the higher the Mohs number, the harder the material. To put this in perspective: a human fingernail is about 2.5, copper is 3, a common knife blade is 5.5, and sapphire (the material in most scratch-resistant glass lenses) is 9. Lenses get a lot of the attention for scratching, but frames face just as many daily abrasions, so their base material matters just as much.
Not all metal frames are made the same, and that’s where a lot of confusion comes in. When I started working in metal frames over a decade ago, we mostly used solid stainless steel or titanium—two materials with very different hardness levels. Stainless steel, the workhorse of early metal frames, has a Mohs hardness of around 4 to 4.5. That means it’s soft enough to scratch if you drag it against a steel nail (which is 5.5), but hard enough to hold its shape through daily wear. Titanium, popular for its lightweight, flexible properties, has a Mohs hardness of about 6, which is actually harder than stainless steel. That’s a big deal—titanium frames will resist scratches far better than standard stainless steel, all else equal. But we also work with premium alloys, like 18k gold-plated brass, which has a Mohs hardness of just 2.5 to 3. That’s softer than a fingernail, so it will scratch if you rest your frame on a metal paper clip or brush it against a zipper in your jacket pocket. We get calls all the time from customers with gold-plated brass frames that have faint scuffs—they think they got a defective product, but it’s just the nature of a softer, more decorative metal.
Wait, you might be thinking: What about “scratch-resistant” metal finishes? That’s another piece of the puzzle. Even if a base metal is hard, the outer coating is what you actually see and touch. Most metal frames are finished with something to prevent tarnish and add color—whether it’s PVD (physical vapor deposition) coating, electroplating, or a simple lacquer. PVD is the gold standard for durable coatings, used in both our premium lines. It’s a thin layer of metal (usually titanium nitride or chromium) that’s applied under high heat, bonding directly to the frame instead of just sitting on top. A good PVD coating has a Mohs hardness of 7 to 8—so it’s harder than stainless steel, and way less likely to scratch. We tested this a few years back: we dragged a steel nail across two identical frames—one with PVD, one with basic electroplating. The electroplated frame had a deep, noticeable scratch; the PVD frame had almost nothing, just a faint mark that buffed out with a quick polish.
Electroplating, the method used for more budget-friendly frames, is a thin layer of metal (nickel, brass, or gold) applied with an electric current. It’s cheaper, but it’s also less durable—its Mohs hardness is around 2 to 4, so it scratches much easier, and those scratches often go all the way through the plating to the base metal, leaving a discolored spot that’s hard to fix. Lacquered frames, used for some colorful styles, are even softer, with a Mohs hardness similar to plastic, so they’ll scuff if you brush them against anything hard.
Now, let’s get real about how most people use their frames, because a lot of scratches have nothing to do with the metal itself. I’ve seen people stuff their frames into a jeans pocket with a set of house keys—keys have a Mohs hardness of 5, which is harder than both stainless steel (4.5) and even the PVD coating (7). That’s a guaranteed scratch, no matter what metal your frame is made of. We always tell our customers to keep frames in a hard case when they’re not wearing them, not just a soft cloth pouch. Even setting your frame down on a wooden desk that has a rough, unfinished edge can cause scratches over time, because wood grain has small, sharp splinters that act like sandpaper.
Another common misconception: once a metal frame is scratched, it’s ruined. That’s not true for most metal frames—unlike plastic frames, which can crack or have deep scratches that are impossible to fix, metal frames can be buffed and polished to remove surface scratches, depending on the depth. For shallow, minor scuffs (the kind that look like a faint line, not a gouge), a jeweler’s polishing cloth or even a clean microfiber cloth with a little toothpaste (non-abrasive, please) will buff them right out. Deeper scratches that go through the plating or coating might need a re-coat, which is a service most optical shops can do. We get returns sometimes from customers who think their frame is defective because of a scratch, and 9 times out of 10, we can buff it out and send it back looking like new.
That’s not to say metal frames are perfect, of course. There are a few myths I want to clear up, too. Some people think titanium is completely scratch-proof, but that’s a lie. Titanium is hard, but it’s not indestructible—drag it against a diamond, and it will scratch, same as any other metal. Others think stainless steel is too soft for daily wear, but for most people, it’s more than durable enough. We sell thousands of stainless steel frames a year, and the rate of complaints about scratches is less than 2%—the vast majority of those are from people who didn’t use a case or kept their frames in the same pocket as keys.
As a supplier, we’ve spent years testing different metals and finishes to figure out what works for our customers. For our entry-level line, we use PVD-coated stainless steel: it’s affordable, lightweight, and durable enough for everyday wear, with a scratch resistance that beats most basic electroplated frames. For our mid-range line, we use PVD-coated titanium, which is even lighter, more flexible, and more scratch-resistant—great for active people or kids, who are hard on their frames. For our premium decorative line, we use solid 14k gold with a thin PVD top coat: the gold is soft, but the PVD adds a layer of protection, and minor scratches can be buffed out easily. We also include a small polishing cloth with every order, and in our product descriptions, we’re upfront about scratch resistance, not overpromising, but telling customers exactly what to expect.
So to circle back to the original question: Do metal eyeglass frames scratch easily? The short answer is: it depends on what they’re made of, how they’re finished, and how you care for them. If you have a soft, gold-plated frame with a thin electroplated coat, yes, it will scratch easily if you’re not careful. If you have a PVD-coated titanium frame, it’s going to be far more resistant to scratches than most other materials, even more so than many plastic frames. The biggest takeaway is that scratch damage is rarely a flaw in the metal itself—it’s usually a result of daily habits.
Whether you’re an optical shop owner looking for frames that stand up to rough use, or a consumer wanting to know what to expect from your next pair, the key is to ask the right questions when you source or buy: What metal is the frame made of? What kind of coating is on it? And what care instructions come with it? As a metal eyeglass frames supplier, we’re happy to walk you through any of these details, answer questions about material durability, and help you find the right frames for your needs. If you’re ready to discuss stock, order minimums, or custom options, reach out to our team to start the conversation. We’re here to make sure you get frames that last, and that you understand exactly what to expect over time.
Metal Eyeglass Frames References
Ashby, M. F., & Jones, D. R. H. (2012). Engineering Materials 1: An Introduction to Properties, Applications, and Design. Butterworth-Heinemann.
Bhushan, B. (2013). Nanotribology and Nanomechanics: An Introduction. Springer.
International Organization for Standardization. (2018). ISO 12870: Ophthalmic optics – Spectacle frames – Requirements and test methods.
Tiryaki, A., & Aydin, L. (2015). Hardness evaluation of common materials used in ophthalmic spectacle frames. Journal of Optometry, 8(2), 75-80.
Danyang Boyue Optical Glasses Co., Ltd.
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