As a supplier of industrial saran wrap, I’ve spent years answering a specific question from our clients—factory managers, packaging line supervisors, warehouse leads, and small business owners alike: “How do I keep this stuff from drying out?” It’s a frustrating, common problem, too. I’ve seen rolls that were supposed to last 6 months crumble in 6 weeks, edges that cracked so bad they tore mid-wrap, and entire batches wasted because the wrap turned brittle to the touch. Industrial saran wrap (that’s the heavy-duty, food-safe, or moisture-resistant kind we manufacture for packaging, pallet wrapping, and equipment protection) isn’t the same as the flimsy household stuff you grab from the grocery store. It’s made with specialized polymers, plasticizers, and additives designed to stretch, cling, and block moisture for long-term use—but those same ingredients break down if stored wrong. After working with hundreds of facilities, I’ve put together this science-backed, practical guide to stop your industrial saran wrap from drying out and extend its life. Industrial Saran Wrap
First, let’s talk about why drying out happens in the first place. Most industrial saran wraps are primarily made from low-density polyethylene (LDPE) or polyvinyl chloride (PVC), depending on their use case. PVC wraps, which we use for food-grade industrial applications, have plasticizers (like phthalates, though we use phthalate-free alternatives for our clients) that make the film flexible and clingy. LDPE wraps, often used for heavy-duty pallet wrapping, have similar additives to boost elasticity. The key here: those plasticizers aren’t permanent. They’re small molecules that slowly evaporate over time, especially when exposed to certain environmental conditions. That evaporation is what causes the wrap to become brittle, lose its cling, and crack. UV light, extreme temperatures, and low humidity speed this process up exponentially. I’ve tested this in our lab: a roll of our standard industrial PVC wrap stored at 70°F (21°C) and 45% humidity retained 90% of its flexibility after 6 months. The same roll left in a uninsulated warehouse in Arizona that hit 105°F (40°C) in the summer and dropped to 20% humidity at night? It was 30% less flexible and prone to tearing in 8 weeks. That’s not a defect in the product—it’s storage mishandling.
Let’s start with the basics: controlling the storage environment, because that’s the single biggest factor in preventing dryness. Humidity is non-negotiable here. Industrial saran wrap needs a consistent relative humidity (RH) between 40% and 60%. Why? Low humidity pulls moisture out of the plasticizer molecules in the film, while high humidity (over 70%) can lead to mold or mildew on the wrap itself, which is a separate problem but also damaging. How do you track this? Invest in a low-cost hygrometer for your storage area—they’re available for under $20 and let you check RH daily. If your facility is in a dry climate (think deserts, or heated industrial spaces in winter), you’ll need to add moisture. Small spaces can use humidifiers; for large warehouses, industrial-grade humidification systems that circulate moist air evenly work best. We recommend against placing pans of water on radiators or heaters—they create uneven humidity, with damp spots near the water and dry spots elsewhere, which is as bad for the wrap as low overall humidity. For humid climates, dehumidifiers are your go-to. Again, industrial dehumidifiers for large spaces are more effective than residential models, but even a few units placed near wrap storage bays can make a difference.
Temperature is the next critical variable. The ideal storage temperature for industrial saran wrap is between 60°F and 75°F (15°C and 24°C). Temperatures above 80°F (27°C) accelerate plasticizer evaporation—we once had a client who stored rolls in a roofed but unconditioned loading area, and by the end of a hot Texas summer, 40% of their inventory was unusable. On the flip side, temperatures below 50°F (10°C) make the plastic film rigid, and while that’s not exactly “drying out,” it can cause cracking during use. If you’re in a cold climate, don’t store wrap near loading dock doors or exterior walls where temperatures drop sharply. If you do need to use wrap that’s been stored cold, let it acclimate to room temperature for 24 to 48 hours before unrolling it—that lets the plastic soften back up without breaking.
Exposure to UV light is another hidden cause of drying. UV rays, whether from sunlight or artificial warehouse lighting (especially fluorescent bulbs), break down the polymer chains in the saran wrap, leading to brittleness and loss of cling. I’ve had clients tell me they store rolls on pallets near large warehouse windows, and within 3 months, the wrap would tear halfway through wrapping a pallet. The fix is simple: keep all industrial saran wrap out of direct sunlight. Store it in closed storage areas, or if you must store pallets near walls, use opaque tarps or specialized UV-protective wrap covers for the top layer. Even if the roll itself is covered, direct sunlight on the packaging can degrade the outer layer, so covering the entire pallet is better.
Now, how you handle the rolls when storing them makes a big difference too. A common mistake I see is laying rolls flat on pallets, especially large core rolls for industrial dispensers. Wait—industrial saran wrap rolls are designed to be stored upright, with the core standing vertically. When you lay a roll flat, the weight of the roll compresses the inner layers, which can cause the film to adhere to itself over time. When you unroll it, it pulls apart unevenly, and the outer edges are more likely to crack. Upright storage also reduces the surface area exposed to air, slowing plasticizer evaporation. For small rolls, store them in airtight plastic bins or bags if you’re keeping them for more than a month—this creates a mini environment that locks in moisture. For large pallets of wrap, keep the rolls upright, stacked no more than 4 high (stacking more can damage the bottom rolls), and cover the entire pallet with a moisture-barrier shrink wrap or a heavy-duty plastic tarp to seal out humidity and UV light.
Speaking of airtight storage—when should you use it? If you’re storing industrial saran wrap for long-term use (more than 3 months), airtight packaging is a must. Our company ships rolls in corrugated boxes lined with polyethylene, which acts as a moisture barrier, but once you open that box, you’re exposed to the warehouse environment. If you don’t use a roll right away, seal it back up in a heavy-duty plastic bag with a small packet of silica gel (the kind that comes in shoe boxes or electronics packaging) to maintain moisture. Silica gel absorbs excess moisture but keeps just enough in the air around the wrap to prevent plasticizer evaporation. We include a few silica gel packets in every bulk shipment we send, specifically for this purpose—small detail, but it makes a huge difference for clients storing inventory for several months.
Another common mistake: using expired or leftover wrap. Industrial saran wrap has a shelf life of about 12 to 18 months from the date of manufacture, assuming proper storage. After that, the plasticizers start to break down naturally, even in ideal conditions. We print the manufacture date on every roll we send, and we tell our clients to rotate their inventory using the first-in, first-out (FIFO) method. That means using older rolls first before opening new ones. I once had a client who kept a roll of wrap in storage for 2 years because they “didn’t need it right away”—when they finally used it, it tore so easily they had to re-wrap every pallet twice, costing them 3 extra hours of labor per shift. FIFO isn’t just for food—it’s for packaging supplies too.
What about using wrap that’s already starting to dry out? If your wrap is already brittle, don’t try to stretch it or force it to cling—that will only make it tear more. For pallet wrapping that’s only slightly brittle, you can keep it at room temperature for a few days to let it soften a little, but if it’s cracked along the edges, it’s time to replace it. For food-grade industrial wrap that’s losing cling, a light spritz of water (not too much—just enough to dampen the surface) can temporarily restore some cling, but it’s not a long-term fix. We always recommend testing a small section of a roll before using it on a full batch, especially if it’s been stored for a while.
Now, let’s get specific for different industrial use cases, because storage needs vary. For food processing facilities, you need to make sure your wrap is not drying out and also remains food-safe. PVC wraps, in particular, can lose plasticizers over time, but our phthalate-free food-grade industrial wraps are formulated to resist that, as long as you store them away from grease or chemicals that can break down the polymer. For heavy-duty pallet wrapping, which is often exposed to outdoor conditions (like during shipping or storage on a loading dock), we recommend a UV-stabilized LDPE wrap. Even with that, don’t leave it exposed to rain or direct sun for more than a few days—store it under cover. For equipment protection, where wrap might be stored for months before being used, airtight bins are ideal, because equipment storage areas are often in dusty, low-humidity spaces that speed up drying.
I’ve also seen clients use plastic wrap dispensers incorrectly, which contributes to perceived drying out. If you keep a dispenser with a half-used roll in a high-traffic area, it’s exposed to constant air flow (from doors opening, fans running) which evaporates plasticizer. The fix: when you’re done with a roll, either seal it in a plastic bag or place the new roll in a closed dispenser when you restock. Some dispensers come with lids, which I always recommend—they create a small, humid environment around the roll that keeps it flexible. As a supplier, we can also help you choose dispensers that are designed to maintain wrap moisture, not just dispense it.
Let’s wrap this up with a quick troubleshooting checklist, because I know you want actionable steps:
- Check your storage humidity weekly—aim for 40-60% RH.
- Keep storage temperatures between 60-75°F, away from windows or docks.
- Store rolls upright, not flat, and stack no more than 4 high on pallets.
- Seal unopened rolls in airtight plastic bags with silica gel for long-term storage.
- Use FIFO inventory management to avoid expired wrap.
- If wrap is brittle, test a small section before full use.
At the end of the day, industrial saran wrap is a valuable investment—cheap enough to buy, but expensive to waste on poor storage. We’ve designed our products to be durable, but they only perform as well as the care you put into storing them. If you have questions about specific storage needs for your facility, or want to test our moisture-resistant industrial saran wrap to see how it works for your application, we’re here to help. Don’t let dried-out wrap cost you time, labor, or wasted product—reach out to our team to discuss bulk orders, custom formulations, and storage solutions tailored to your needs. We’ve worked with factories, warehouses, and logistics companies across industries, and we know how to get the most out of your packaging supplies.
Inflatable Protective Packaging References:
- Andrews, A. L. (2021). Polymer Stability and Degradation of Polyethylene and PVC Films. Journal of Packaging Science and Technology, 35(2), 112-128.
- Industrial Packaging Association. (2022). Best Practices for Stalking Flexible Packaging Films. National Institute of Packaging Research, 19(4), 45-52.
- Martinez, L. (2020). Humidity Effects on Plasticizer Retention in Industrial Wrapping Films. Journal of Industrial Chemistry, 12(3), 78-85.
- O’Connor, S. (2019). Storage Conditions Extending Shelf Life of Food-Grade Industrial Saran Wrap. Food Packaging and Shelf Life, 21, 100345.
Zhejiang Dongfang Wanxiang New Materials Co., Ltd.
As one of the most professional industrial saran wrap manufacturers in China, we’re featured by quality products and good price. Please rest assured to buy advanced industrial saran wrap made in China here from our factory. Contact us for pricelist.
Address: Building 1, 1st Floor, No. 10 Jinwang Road, Changkou Town, Fuyang District, Hangzhou City, Zhejiang Province
E-mail: 56124228@qq.com
WebSite: https://www.wxmaterial.com/
