At Wisconsin Converting, we know that the smallest details can make the biggest difference in your shipping process. That’s why our paper mailers come equipped with an easy-to-use Peel & Seal closure – a fast, secure, and tamper-evident solution that keeps your goods safe in transit.
But just like any tool, using it the right way matters.
We put together a short video (below) to show you how to get the strongest possible seal, and avoid common sealing mistakes that can lead to packaging failures.
🎥 Watch now:
✅ Quick step-by-step instructions
❌ What not to do (like overstuffing the mailer)
💡 Tips to make the seal stick better and hold stronger
✅ Best Practices for Peel & Seal Closures
- Peel the Strip Cleanly: Remove the protective backing to expose the pressure-sensitive adhesive.
- Seal on a Flat Surface: Lay the mailer flat and fold the flap down. Press firmly along the entire adhesive strip — edge to edge — to ensure full contact.
- Apply Even Pressure: The seal is pressure-activated, so take a few extra seconds to press evenly across the strip. This helps the adhesive bond properly.
- Give It a Moment: After sealing, let the mailer sit for a short time. The adhesive continues to strengthen after application, helping prevent tampering and failure in transit.
💡 What Makes WCI Mailers and Shipping Bags Different?
We’ve recently introduced our proprietary Eco-Bond™ process, which enhances the strength of the Peel & Seal closure by improving the bond between the flap and the mailer. The result? A stronger seal that holds up under pressure, without adding any non-recyclable components.
It’s part of our commitment to offering eco-friendly, high-performance packaging made right here in Green Bay, Wisconsin.
❌ What to Avoid
Even the best materials can fall short if not used properly. One of the most common issues we see is overfilling mailers. When a mailer is too full, the flap can’t lie flat — which means the adhesive doesn’t get full contact. That weakens the seal and increases the risk of the package opening during transit.
Pro Tip: Leave just enough space to fold the flap down cleanly and press evenly.
📬 Let’s Ship Smarter — Together
Whether you’re sending apparel, literature, or lightweight parts, our Peel & Seal paper mailers are designed to make your job easier — while keeping your packaging sustainable and your customers happy.
📨 Need mailers for your distribution center?
Contact our team for samples, pricing, and custom options.
Proudly Made in Green Bay, WI
At WCI, we’re rooted in Midwestern values. That means working hard, treating people right, and doing what we can to take care of our community and the environment. We’ve been in the paper bag business for decades, and we take pride in delivering products that are not only functional but also responsible.
Our team in Green Bay, Wisconsin puts care into every case of bags we produce. When you work with WCI, you’re not just getting a great product—you’re getting a partner that stands behind it.
Commitment to Sustainability and Quality
At Wisconsin Converting, Inc., we are committed to providing high-quality, sustainable packaging solutions. Whether you’re looking for eco-friendly options or need robust packaging that holds up under pressure, our diverse product range offers something for everyone.
From Cases to Truckloads – Your Paper Packaging Partner
In the dynamic world of business, where sustainability, efficiency, and user experience intersect, Wisconsin Converting Inc. is your reliable packaging solutions partner. The journey to choosing the perfect paper bag for your business might seem complex, but it’s all about understanding your specific needs and the options available. At WCI, we believe in the power of the right paper bag to not just carry products, but also carry forward your brand’s commitment to quality and the environment. Choose wisely and let your paper packaging speak volumes about your brand! Whether you’re a small eBay seller or a retail giant, WCI has a solution – From Cases To Truckloads – We’ve Got You Covered! Elevate your packaging game and Contact Us today for a free quote!
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