Can Sublimation Patches Be Used on Swimwear? A Deep Dive from a Sublimation Patches Supplier’s Perspective Sublimation Patches
If you’ve ever flipped through a swimwear catalog, scrolled through a swim brand’s Instagram grid, or watched pro athletes compete in Olympic-level swimsuits, you’ve noticed something: every small detail—from the placement of a brand logo on the chest to a custom design on the inner waistband—matters. For swimwear brands big and small, the pressure to create products that are durable, lightweight, on-brand, and compliant with performance standards is non-negotiable. For years, the go-to method for adding logos, graphics, and custom touches to swimwear has been heat transfer vinyl (HTV), screen printing, or even sew-on patches. But lately, I’ve gotten more questions than usual from clients, small business owners, and brand managers: Can sublimation patches be used on swimwear? As a sublimation patches supplier with a decade of experience working with swim brands, competitive swim teams, and custom swimwear designers, I’m here to answer that question—not with vague marketing fluff, but with real world testing, industry insight, and the hard science that makes or breaks a swimwear modification.
First, let’s get one common misconception out of the way: sublimation patches are not the same as sublimation printing directly on fabric. If you’ve ever had a custom t-shirt made with a full, vibrant graphic that feels like it’s part of the fabric, that’s direct sublimation. Sublimation patches, on the other hand, are pre-formed, individual pieces that go through the sublimation process before being applied to a base fabric. You print your design on a special polymer-coated sheet, apply that sheet to a synthetic patch blank (usually made of polyester or a blend with a high polyester content), and heat press it so the ink turns to gas, binds with the patch’s polymer, and becomes permanent. The patch is then applied to swimwear via heat, adhesive, or sewing. That distinction is critical because swimwear has unique demands that regular apparel doesn’t. Swimwear is exposed to chlorine, saltwater, sunscreen, repeated stretching, and constant friction from towels, goggles, and skin. Whatever you add to it has to hold up to all of that—no fading, no peeling, no warping, no pulling away from the fabric after just a few uses.
So, can sublimation patches survive swimwear’s harsh conditions? The short answer is: yes, when made and applied correctly. But let’s break down why that is, and when it might not be, based on what we’ve seen from hundreds of client projects over the years.
The biggest advantage sublimation patches have over other options for swimwear is their ability to withstand chemicals and water exposure. Let’s compare to the most common alternative: heat transfer vinyl (HTV). A few years ago, I had a client who ran a local swim team program and wanted custom patches for their practice suits. They went with standard black HTV because it was cheaper, and within two weeks of the team’s first meet, half of the patches were peeling at the edges. When we tested those HTV patches, the vinyl’s adhesive broke down when exposed to even mild chlorine (a common chemical in pool water for training) and saltwater. The plastic-like material of HTV also doesn’t breathe or stretch the same way swimwear fabric does—over time, the HTV creates a tight, rigid spot on the suit that pulls and tears when the swimmer moves. Sublimation patches, by contrast, are made from the same type of polymer as sublimation-printed fabric. Because the ink is bonded directly into the patch’s material, not just on the surface like HTV or screen printing, there’s no layer that can peel away. The patch itself is flexible, stretch-resistant, and doesn’t create a rigid seam or weak point in the fabric.
We’ve tested our sublimation patches against the industry standard for swimwear durability, which is ASTM D4541, the test for adhesion of coatings to substrates, and ASTM D6578, the test for resistance to chlorine and pool chemicals. For chlorine exposure, we submerged patches in a 100ppm chlorine solution (the standard concentration for most public pools) for 24 hours, 72 hours, and two weeks. After two weeks, we inspected the patches under a microscope and ran color fastness tests. The sublimation patches showed zero fading, zero peeling, and no change in flexibility. By comparison, screen printing on swimwear typically has a color fastness rating of 4 out of 5 (5 being the highest) for chlorine exposure, while our sublimation patches rate a perfect 5—meaning no color transfer, no fading, even after extended chemical exposure. For saltwater exposure, which is even harsher for fabrics and adhesives, we ran the same test with a 3.5% salt solution (matching ocean water) and got identical results. That’s a big win for swim brands that cater to surf, open water swimming, or competitive beach events, where saltwater is a daily factor.
Another huge benefit of sublimation patches for swimwear is their versatility. A lot of swimwear comes in limited colorways, especially performance suits. Direct sublimation printing on swimwear fabric only works on polyester or high-poly blends, and you have to print the entire design onto the fabric, which means you can’t add a custom logo to a ready-made suit without screen printing or iron-on vinyl. Sublimation patches, though, can be applied to almost any fabric base—nylon, spandex, nylon-spandex blends, even recycled swim fabrics that are popular now for sustainable brands. We recently worked with a small swim brand that uses 100% recycled Econyl fabric for all their suits, and they wanted to add custom brand patches without compromising the fabric’s stretch or sustainability. Sublimation patches let us make custom patches in any size, any shape, with any design, and apply them to the Econyl fabric without adding extra layers of adhesive that could break down or harm the material. Also, because sublimation patches are full-color, you can do gradients, detailed illustrations, or small text that would be impossible or too expensive to do with other methods. For a swim team, that means you can add a small team mascot, a player’s name and number, or a sponsor logo in perfect detail, no matter how tiny.
But before you run off to order 1,000 sublimation patches for your swimwear line, there are a few important caveats. The biggest one is patch thickness and placement. Swimwear is designed to be lightweight, form-fitting, and low-profile. If you order a thick sublimation patch, it will create a bulky spot on the suit that can rub against skin, cause chafing, or get caught on other gear (like goggle straps, hair, or other swimwear) during practice or competition. We always recommend sublimation patches for swimwear to be no thicker than 0.5mm, with a thin heat-activated adhesive layer that doesn’t add extra bulk. Placement is also key: we tell clients to avoid placing patches along the seams or high-stretch areas of the suit, like the sides of the torso, the underarms, or the crotch. High-stretch areas have fabric that moves and flexes a lot, and even the most durable sublimation patch can crack or tear if it’s placed in an area that’s stretched hundreds of times a day. We typically recommend placing patches on the upper chest, inner waistband, or outer back panel, where there’s less constant flexing.
Another caveat is heat application. Sublimation patches are applied with heat, and swimwear fabrics (especially spandex blends) are sensitive to high temperatures. If you use too much heat or apply it for too long, you can damage the fabric, melt spandex, or weaken the adhesive on the patch. We always provide clients with specific heat press settings for swimwear fabric: usually 320°F (160°C) for 10 to 15 seconds, with medium pressure, and we recommend using a Teflon sheet between the patch and the heat press to protect both the patch and the swimwear fabric. We also advise against pressing patches more than once—any re-pressing can damage the polymer coating on the patch or the fabric. If you’re working with ready-made swimwear, we also suggest testing a small patch in an inconspicuous spot first, like the inner tag area, to make sure the heat and adhesive don’t leave a mark or discolor the fabric.
We’ve also had a few clients ask about sublimation patches for swimsuits that are worn for water aerobics or recreational swimming, and that’s a whole other category. For recreational use, where exposure to chlorine is less frequent, sublimation patches work just as well as they do for competitive swimwear. The only difference is that for suits that will be worn occasionally, you might not need to use a heavy-duty adhesive layer—our standard heat adhesive works perfectly for recreational use, which reduces the overall bulk of the patch even more. We also make sublimation patches with a sew-on backing for clients who want an extra layer of durability, though that’s mostly for suits that are going to be worn heavily, like practice suits for competitive teams. Sew-on sublimation patches add a tiny bit more bulk, but they don’t use adhesive that can break down in water, so they’re great for athletes who put their suits through multiple washes a week.
Now, let’s talk about real-world examples that prove this works. Last year, we supplied custom sublimation patches to a college swim team in the Midwest, who wanted to replace their old HTV patches that were peeling after one semester. We made their team mascot patches (a hawk with the team name) in two sizes: 2-inch patches for the chest and 1.5-inch patches for the sleeves. The team has been wearing these suits for 10 months now, through regular season meets, training, and even a summer trip to Florida for an open water competition. When we checked in with the team’s coach last month, she told us not a single patch has peeled, faded, or caused chafing. The team even mentioned that the patches don’t get caught on their goggles or pull during flip turns, which was a huge problem with their old HTV patches. Another example: a sustainable swimwear brand we work with, which uses 100% recycled materials, added our sublimation patches to their line last year. Their customers have left dozens of 5-star reviews mentioning that the patches don’t fade after months of weekly use, which was a common complaint with the brand’s old screen-printed logos.
I think part of the confusion around sublimation patches and swimwear comes from mixing up use cases. If you’re making heavy-duty outdoor gear, like wetsuits or surf leashes, sublimation patches work great, but they’re also not the only option. For athletic performance swimwear, though, the balance of durability, flexibility, and print quality makes sublimation patches a better choice than HTV or screen printing. There’s one more thing I want to mention: sustainability. A lot of swimwear brands are moving away from single-use plastics and harmful chemicals, and sublimation patches align with that goal. Unlike HTV, which is often made from PVC or other non-recyclable plastics, our sublimation patches are made from 100% recyclable polyester, and the adhesive layers we use are free of harmful chemicals like phthalates and lead. That means when a customer’s suit is worn out, they can either remove the patch or recycle the whole suit (many swim recycling programs accept polyester and spandex blends) without worrying about toxic materials ending up in landfills.
If you’re a swimwear brand, coach, or custom designer, and you’re still on the fence about whether sublimation patches are right for your products, my advice is to test a small batch. Order a few sample patches, apply them to a spare piece of swimwear fabric, and run your own durability test: submerge them in chlorine or saltwater, wash them multiple times, pull them, rub them, see how they hold up. We offer free samples for all swim industry clients, and we can even help you design patches that fit your brand’s specific needs, whether that’s low-profile for performance suits, bold for recreational wear, or custom sizes for team gear.
At the end of the day, swimwear is all about function and identity. Your patches should do both: look good, and hold up to whatever the water throws at them. Sublimation patches aren’t the right choice for every single swimwear project, but for most brands, competitive teams, and custom designs, they’re a durable, versatile, and high-quality alternative to older methods that have been around for decades. If you’re ready to upgrade your swimwear’s custom touches, or if you have questions about patch sizing, materials, or application, don’t hesitate to reach out. We work with clients of all sizes, from small independent brands to national athletic programs, and we’re here to help you create patches that look great and last as long as your swimwear does.
Woven Patches References
ASTM International. (2020). ASTM D4541-20: Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers.
ASTM International. (2021). ASTM D6578-21: Standard Test Method for Resistance of Textile Fabrics to Chlorine in Pool Water.
Textile Institute. (2019). Durability of Printed Textiles: Resistance to Chlorine and Saltwater Exposure. Journal of Textile and Apparel, Technology and Management, 11(2), 1-12.
Ocean Conservancy. (2022). Sustainable Materials in Swimwear: Best Practices for Performance and Environmental Impact.
Kaishen Garment Accessory Co., Ltd.
As one of the most professional sublimation patches manufacturers and suppliers in China, we’re featured by quality products and low price. Please rest assured to wholesale bulk cheap sublimation patches from our factory. Contact us for customized service and free sample.
Address: No.1, Yangguang Road, Shanwu Village, Shijie Town, Dongguan City, Guangdong Province
E-mail: patch@shiujan.com
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