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Can I use a Square Seal for non – business purposes?

by martha•

Let’s cut to the chase—if you’re scrolling this because you found a dope square seal on my supplier shelf and are wondering if you can bend it for non-business stuff, you’re in the right place. I’ve been selling these little silicone bad boys (yes, I call them that, sue me) for almost 5 years, and I get the same question from crafters, plant parents, game night hosts, and even college students stressing over their dorm decor. Most seal guides will scare you off with business-only rules, but that’s mostly just fine print for the office folks who buy 500 at a time. Let’s break this down, no fancy jargon, just real talk from someone who stocks these things by the pallet. Square Seal

First off, let’s get one thing straight: what even is a Square Seal, anyway? I’m not talking about the fancy, lock-down ones you see in FedEx warehouses for pallet packing. The ones I sell (the silicone or heavy-duty plastic ones) are designed to hold plastic bags, woven totes, paper packages, even those random fabric bags people use for bulk snacks. Originally, they were made for small businesses—candlers sealing cookie tins, bakers keeping sourdough starter fresh, online sellers bagging handmade jewelry so it doesn’t get crumpled in the mail. But here’s the thing about functional little tools like these: once people see how useful they are beyond the office, they stop seeing them as just “business gear.”

I’ve had customers come in with the most random non-business uses, and half the time, I have to stop myself from laughing because it’s genius. Last month, a high school art teacher bought 20 of them to seal mixed-media canvas pieces so the acrylic doesn’t flake off during storage. A plant parent used them to seal the top of glass apothecary jars that hold soil for succulents—keeps the dirt from spilling if the jar gets knocked over. My personal favorite? A group of D&D players who bought custom printed Square Seals (wait, yeah, I do custom logos and designs too) to seal their campaign notebooks so their secret character backstories don’t get read by the wrong party member. That’s non-business as non-business gets, and I didn’t bat an eye when they asked.

But let’s get to the actual rules, because I know half of you are already scrolling to the “can I actually do this” part. The short answer: 9 times out of 10, yes, as long as you’re not modifying the seal to be dangerous or misleading. The longer answer? Let’s reference the basics here, because I don’t want to give you a random Google answer. Square Seals are categorized as “consumable fasteners” by the FDA and CPSC, so they’re meant for repeated or single-use sealing of general goods. The only “restrictions” I’ve ever come across in our supplier terms are for commercial resale or using them to mark products as official (like if you’re pretending your homemade jam is a brand—don’t do that, that’s a trademark thing, not a seal thing).

Wait, let’s clarify that trademark thing because that’s the only real “no” I’ve ever had to enforce. If you take a Square Seal I sold you and stamp it with your own business logo to sell stuff, that’s cool (that’s actually what most business customers do). But if you take a generic Square Seal I sold you, carve a “fake Apple” logo into it, and seal your homemade iPhone cases with that to pass them off as real? That’s trademark infringement, and I can’t help you there. But that’s not a non-business use—that’s fraud. I’m not here to enable that, but I also know most of you asking are not scammers. You’re people who want to seal your grandkid’s birthday art so it stays in good shape, or your beach tote so all your sunscreen doesn’t leak onto your laptop. Those are all totally fine.

Now, let’s talk about the different types of Square Seals, because not all are created equal, and that changes what you can use them for. The cheap, lightweight plastic ones? Those are great for sealing snack bags, drawing notebooks, even the little jars you keep your hair ties in. I sell those in bulk for $1 a piece, and I’ve had customers tell me they use them to seal their kid’s Halloween candy so it doesn’t go stale before trick-or-treat. Perfectly fine. The heavy-duty silicone ones? Those are thicker, can hold up to 10 lbs of stuff, so I’ve seen people use them to seal small storage boxes for their holiday ornaments, or even to keep their bike lights from falling off during a race. Again, non-business, totally allowed.

Wait, I should mention one catch: if you’re planning to use them for food? Make sure you pick the food-grade silicone ones, not the cheap plastic ones. I can’t tell you how many times a customer has come back saying they bought a random plastic Square Seal from a dollar store and it melted when they sealed a hot casserole. Don’t be that person. I stock food-grade ones that are BPA-free, so if you’re sealing homemade granola, pickles, even sourdough starter, those are safe. The non-food-grade ones are fine for art supplies, tools, whatever, just don’t put food in contact with them if they’re not marked. That’s not a rule I made, that’s the FDA’s food safety guidelines, so I’m just passing that along.

Let me also address the myth that you “can’t use business stuff for non-business.” I hear this all the time from people who think if something is made for a business, it’s off-limits for personal use. Bullshit. Think about it: a business uses a stapler, and you use a stapler at home. Same thing with a Square Seal. The only difference is that Square Seals are a little more specialized for bags and flexible packaging, but the core function is the same. I’ve had a customer who owns a bakery buy 100 square seals to seal her personal holiday cookie tins for her neighbors. She told me she couldn’t find them anywhere else for personal use, so I hooked her up with a bulk discount for personal orders. That’s the kind of stuff I live for.

Another common question: can I customize a Square Seal for non-business use? Like, get my dog’s face printed on it to seal his treat bags? Or my own art design to seal my sketchbook? Absolutely. I do custom printed Square Seals for anyone, not just businesses. Last year, I did a set for a woman who wanted her late cat’s paw print on each seal, so she could seal the jars of cat treats she gives to the local animal shelter. That’s non-business, that’s heartfelt, and that’s exactly the kind of use that makes my job worth it. The only time I turn down custom designs is if they’re offensive, or if someone wants to copy a brand logo for resale (which goes back to the trademark thing).

Wait, let’s get into a few real examples of non-business Square Seal uses that I’ve actually seen, to make this concrete:

  1. D&D Campaign Backstory Sealing: As I mentioned earlier, a group of 20-somethings bought custom printed Square Seals with their party’s logo, and used them to seal their individual character notebooks so no one could peek at each other’s secrets during sessions. Brilliant, totally non-business, approved.
  2. Succulent Soil Jar Sealing: A plant parent used a square seal to clamp the lid of a glass apothecary jar filled with succulent potting mix, so when she moves it to repot, no dirt spills everywhere. The seal fits snug, no mess, works like a charm.
  3. Holiday Ornament Storage: A family bought heavy-duty silicone Square Seals to seal the lids of their plastic storage bins that hold Christmas ornaments. The seals keep dust out, and the bins stack neatly, so they don’t have to dig through a messy box every year.
  4. Kid’s Art Preservation: A teacher bought lightweight Square Seals to seal the front of her students’ canvas art pieces, so the acrylic paint doesn’t flake off when the pieces are stored in the classroom closet until the art show.
  5. Beach Tote Organization: A group of friends bought bright, colorful Square Seals to seal small pouches in their beach bags—one for sunscreen, one for lip balm, one for their phone chargers—so nothing gets lost or squished.

All of these are 100% non-business uses, all of them use Square Seals exactly as they’re designed, and none of them violate any rules or guidelines. So why do some people say you can’t do this? Mostly because big corporate sellers love selling you “personal use” gear at a markup, so they’ll tell you anything to keep you from buying the same stuff they sell to businesses. Or sometimes it’s just fine print from manufacturers that only applies if you’re using the seal for commercial purposes. I read all that fine print, and I can tell you: none of it restricts personal use.

Now, if you’re thinking about buying Square Seals for a non-business use, here’s my quick advice to make sure you pick the right ones:

  • If it’s for food (snacks, treats, ingredients): Get food-grade silicone or BPA-free plastic. I label every single one I sell, so you don’t have to guess.
  • If it’s for heavy stuff (storage bins, tools, bike parts): Go for heavy-duty silicone, not the thin cheap ones. They hold more weight and last longer.
  • If it’s for small, light stuff (art, hair ties, notebooks): The lightweight plastic ones work fine, and they’re cheaper.
  • If you want to customize it for a personal project: Reach out, I do custom prints for as little as $1 per seal, no minimum for small orders.

The only time I’d ever say “don’t do that” is if you’re using a Square Seal to pretend something is an official product. Like, if you’re selling homemade candles and stamping a Square Seal with a fake brand name, that’s a no-no. But if you’re using it for your own candles, for your friends, that’s totally cool.

At the end of the day, Square Seals are just tools. Tools are meant to be used, and if a tool works for your non-business project, that’s what they’re there for. I started selling Square Seals because I thought they were way more useful than people gave them credit for, and seeing customers use them for weird, wonderful personal projects is the best part of my job.

If you’re ready to pick up some Square Seals for your next non-business project—whether it’s sealing your kid’s art, organizing your beach bag, or making custom treat pouches for your cat—reach out to chat about what you need. I can help you pick the right type, size, even customize it if you want. No weird sales pitches, no pushy upsells, just honest advice from someone who actually uses these things too.

Oil Suction and Discharge Hose References:

  1. U.S. Food and Drug Administration. (2023). Food Contact Substances: General Requirements.
  2. Consumer Product Safety Commission. (2022). Small Parts and Fasteners Safety Guidelines.
  3. International Trademark Association. (2024. Non-Commercial Trademark Usage Guidelines).

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