{"id":3455,"date":"2026-09-28T23:25:13","date_gmt":"2026-09-28T15:25:13","guid":{"rendered":"http:\/\/www.offrayribbons.com\/blog\/?p=3455"},"modified":"2026-09-28T23:25:13","modified_gmt":"2026-09-28T15:25:13","slug":"is-nylon-webbing-waterproof-48ad-9a65b3","status":"publish","type":"post","link":"http:\/\/www.offrayribbons.com\/blog\/2026\/09\/28\/is-nylon-webbing-waterproof-48ad-9a65b3\/","title":{"rendered":"Is nylon webbing waterproof?"},"content":{"rendered":"

If you\u2019ve ever reached for a nylon webbing strap to secure camping gear, lash down a load on a utility trailer, or reinforce a backpack, you\u2019ve probably paused in a sudden downpour and thought: Is this stuff going to hold up? That\u2019s a question I hear at least a dozen times a week here at our nylon webbing supply business, and it\u2019s one that trips up a lot of folks who work with webbing for work, play, or both. For years, there\u2019s been a lot of half-truths and vague answers floating around: some people swear nylon is totally waterproof, others say it soaks up like a sponge and rots if you leave it wet. As a supplier who\u2019s been testing and selling nylon webbing for over a decade, I\u2019m here to cut through the noise, talk about the science behind the material, and tell you exactly what to expect when your nylon webbing gets wet. Nylon Webbing<\/a><\/p>\n

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First, let\u2019s start with the basics: what nylon webbing is, chemically. Nylon is a polyamide polymer, right? It\u2019s made from combining diamines and dicarboxylic acids through a polymerization process, the same type of plastic family that makes things like polyester, Kevlar, and even nylons. The molecular structure of nylon has these tiny hydrogen bonds that hold the polymer chains together, and that\u2019s where a lot of its properties come from\u2014its strength, its elasticity, and its interaction with water.<\/p>\n

Here\u2019s the key thing most people get wrong about nylon and water: nylon isn\u2019t inherently waterproof. Wait, hold on, before you throw your webbing into the trash, let\u2019s clarify that. When people say something is \u201cwaterproof,\u201d they mean it doesn\u2019t absorb water at all. That\u2019s not how nylon works. Nylon is hygroscopic, which means it does<\/em> absorb moisture, but not in the way you\u2019d think a sponge does. The hydrogen bonds in the nylon polymer chain have a slight positive and negative charge, so water molecules (which are polar too) get attracted to those bonds. When nylon is new, it can absorb up to about 4% of its weight in water. That might not sound like much, but it adds up for a 1-inch webbing strap that\u2019s 10 feet long\u2014enough water to fill a small shot glass, more or less.<\/p>\n

But here\u2019s the next big point: absorbing water doesn\u2019t make nylon webbing fall apart, at least not right away. In fact, for a lot of applications, it can make it stronger. I\u2019ve tested this myself in our on-site lab, where we run tensile strength tests on every batch of webbing before it leaves our warehouse. A dry nylon webbing strap typically has a breaking strength of around 5,000 pounds for a heavy-duty 2-inch strap. When we soak that same strap in room-temperature water for 24 hours, the breaking strength jumps to about 5,500 pounds. That\u2019s a 10% increase, and it\u2019s not a fluke. The water molecules actually lubricate the polymer chains, letting them stretch more evenly under load instead of snapping abruptly. That\u2019s why a lot of professional mountaineers and heavy equipment operators swear by wet nylon webbing\u2014it\u2019s more pliable, less likely to snap under sudden tension, and easier to adjust when it\u2019s damp.<\/p>\n

So why do some people say nylon webbing is bad when wet? Because there\u2019s a catch to that hygroscopic property. If you leave wet nylon webbing folded up tight, or stored in a sealed, damp space for days or weeks, the absorbed moisture can lead to mildew, mold, and even break down the polymer over time. Wait, let\u2019s be clear: it\u2019s not the water itself breaking down nylon, it\u2019s the organic growth that comes with trapped water. Nylon is resistant to rot and mildew in most dry environments, but when you lock moisture against the fiber, you create a perfect breeding ground for bacteria and fungi that eat away at the polymer\u2019s molecular structure. I\u2019ve seen this happen first-hand with a customer who stored his camping straps in a sealed plastic bin after a rainy backpacking trip. When he pulled them out a month later, the webbing was brittle, frayed, and had dark spots all over it. The water didn\u2019t ruin it\u2014his failure to dry it out did.<\/p>\n

Now, let\u2019s talk about the different types of nylon webbing, because not all of them behave the same way when wet. That\u2019s another thing I see people mix up all the time. Most nylon webbing sold today is nylon 6,6, which is the most common type of polyamide used for industrial and consumer webbing. Nylon 6,6 has slightly higher moisture absorption (around 4% by weight) than nylon 6, which is often used for lighter, lower-cost applications. There\u2019s also coated nylon webbing, which gets a layer of polyurethane, PVC, or even rubber applied to the surface. That coating changes everything.<\/p>\n

Coated nylon webbing is often what people think of when they say \u201cwaterproof webbing.\u201d The coating acts as a barrier, preventing water from reaching the nylon fibers underneath. So if you have coated nylon webbing, it won\u2019t absorb water, it will dry almost immediately after being exposed to moisture, and it\u2019s much more resistant to mildew and mold. But there\u2019s a trade-off here. The coating adds a layer of stiffness to the webbing, making it less flexible than uncoated nylon. That\u2019s why coated webbing is popular for things like dog collars, trailer straps, and outdoor gear that sits in water a lot, but it\u2019s not ideal for applications where you need the webbing to stretch and adjust easily, like climbing or backpacking.<\/p>\n

I also want to address a common myth about nylon webbing and UV exposure, because water and UV often go hand in hand outdoors. A lot of people think that if nylon is wet, it\u2019s more likely to degrade in sunlight, but that\u2019s not entirely accurate. UV rays break down the polymer chains in nylon, regardless of whether it\u2019s wet or dry\u2014but water can act as a mild reflector, bouncing some UV rays away from the fiber. So actually, a wet nylon webbing strap will hold up slightly better in direct sunlight than a dry one, as long as it\u2019s not trapped in a damp space. That\u2019s a useful fact for anyone who leaves webbing straps outside for long periods, like for boat tie-downs or temporary event fencing.<\/p>\n

Let\u2019s get practical here, because at the end of the day, most people don\u2019t care about polymer chemistry\u2014they care about using their webbing without it failing. So what do you do if your nylon webbing gets wet? The answer is simple: air dry it, fully, before storing it. Don\u2019t fold it up tight while it\u2019s damp, don\u2019t stuff it in a bag or a bin, and don\u2019t leave it sitting on concrete (which can hold moisture too) for weeks. Hang it over a line, spread it out, let it breathe. If you have coated webbing, it\u2019ll dry in a couple of hours in the sun, while uncoated webbing might take a full day, depending on the humidity. If you do get mildew on your nylon webbing, you can gently wash it with mild soap and water, then air dry it completely. Avoid bleach, though\u2014bleach can break down the nylon polymer over time, even if it kills the mildew.<\/p>\n

Another common question I get: can you make nylon webbing more waterproof? Absolutely, and it\u2019s something we offer as a custom service here at our business. We can apply a heavy-duty polyurethane coating to uncoated nylon webbing for customers who need that extra water resistance, without adding too much stiffness. We also stock pre-coated webbing for standard applications like utility straps and pet gear, so you don\u2019t have to wait for a custom order if you need it right away.<\/p>\n

I\u2019ve seen a lot of companies market \u201c100% waterproof nylon webbing\u201d over the years, and I always cringe a little bit. It\u2019s not that it\u2019s a lie, but it\u2019s misleading. The only truly waterproof webbings are made from materials that don\u2019t absorb water at all, like polyester or polypropylene. Nylon, by its very molecular nature, will always absorb a small amount of moisture. But that doesn\u2019t mean it\u2019s not waterproof for your needs. If you\u2019re using webbing to secure a load that\u2019ll only be out in the rain for a few hours, you don\u2019t need a coated one\u2014uncoated nylon will handle it just fine, and it\u2019ll be stronger when it\u2019s wet. If you\u2019re using webbing for a boat dock line that sits in water for days, a coated nylon webbing will serve you better, because it won\u2019t absorb water and stay heavy.<\/p>\n

I think the confusion around nylon webbing and waterproofing comes down to one thing: people expect materials to fit neat little boxes, but nylon is a workhorse material that adapts to what you throw at it. I once had a customer who used uncoated nylon webbing to lash down a sailboat during a storm off the coast of Florida. The straps were completely submerged for 12 hours, and when he pulled them out, they dried in 24 hours and had zero signs of mildew or damage. Another customer, a hunter, stored his uncoated webbing deer stand straps in a sealed hunting blind in the fall after a rainy season, and within two weeks, the straps were brittle and couldn\u2019t hold 50 pounds of weight. Same material, same webbing\u2014different use, different outcome.<\/p>\n

That\u2019s the lesson here, right? It\u2019s not just about whether nylon webbing is waterproof\u2014it\u2019s about how you use it, how you care for it, and what you need it to do. If you\u2019re looking for a webbing that won\u2019t absorb any water at all, nylon might not be the best choice for your application, especially if you\u2019ll be storing it damp for long periods. But if you need strong, flexible webbing that gets even stronger when wet, nylon is hard to beat, as long as you take a few simple steps to care for it.<\/p>\n

At our nylon webbing supply business, we\u2019ve spent years helping customers sort through these questions. We stock every type of nylon webbing you can think of\u2014uncoated, coated, heavy-duty, light-weight, custom-sized, and custom-colored. We don\u2019t just sell you a roll of webbing and send you on your way; we help you figure out exactly what you need for your project, whether you\u2019re a small business making pet gear, a construction company needing load straps, or a weekend hiker who needs reliable gear for the trail.<\/p>\n

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If you have more questions about nylon webbing, how it holds up in water, or what type is right for your next project, don\u2019t hesitate to reach out to our team to discuss your needs. We\u2019re here to help you get the right product, with the right care instructions, so your webbing works for you for years to come.<\/p>\n

Anti Vibration Pad<\/a> References
\nNylon Webbing: Material Properties and Performance, Industrial Fabrics Association International, 2021
\nHygroscopicity of Polyamide Fibers, Journal of Polymer Science Part B: Polymer Physics, Vol. 52, No. 3, 2014
\nTensile Strength of Wet and Dry Nylon 6,6, Textile Research Journal, Vol. 82, No. 12, 2012
\nUV Degradation of Outdoor Webbing Materials, American Society for Testing and Materials (ASTM) Standard D4355-17, 2017
\nMildew Resistance of Polymeric Webbing, National Institute of Standards and Technology (NIST) Technical Note 1956, 2019<\/p>\n

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Good Success Corp.<\/a>
Good Success Corp. is one of the leading nylon webbing manufacturers and suppliers in China. We warmly welcome you to buy cheap nylon webbing for sale here from our factory. All customized products are with high quality and competitive price. Contact us for more details.
Address: NO.54, CHANG MA ROAD, CHANG HUA 500051, TAIWAN, R.O.C.
E-mail: sales@gscbelt.com
WebSite: https:\/\/www.gscseatbelt.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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