Banners are one of the most effective and affordable tools for advertising your business and services. Whether used for promotions, events, or general signage, they attract attention and deliver clear messages in a big way. But to maximize a banner’s longevity and appearance, proper finishing is important. Hemming plays a big role in reinforcing banner edges, preventing wear and tear from weather, and ensuring a professional, clean look.
Here, Banner Ups walks you through the most common methods of banner hemming, compares them, and helps printers and sign makers decide which approach suits their workflow, materials, and customer needs best.
Why Hem a Banner?
Without hemming, banners are more susceptible to wind damage, fraying, and curling at the edges. Hemming strengthens the structure by folding and securing the banner material, which reduces stress on the edges where grommets or poles are usually placed. Not only does this prolong the life of the banner but it also gives it a more stable and polished finish.
Hemming also improves how a banner hangs. A reinforced edge creates a flatter display, which makes graphics look sharper and easier to read. For outdoor use especially, hemming is key to ensuring the banner withstands rain, wind, and UV exposure.
Banner Hemming Methods Explained
There are several ways to hem banners, and the method you choose can depend on your equipment, budget, and production scale. The most common techniques include taping, gluing, sewing, and welding:
Hemming Tape
Using banner hemming tape is a popular and affordable method, particularly suited for small to medium production runs. Double-sided adhesive tapes are commonly used for this purpose. Rubber-based adhesivesare low-cost and provide good initial tack but can soften in high heat, which leads to failure. Acrylic-based tapes, though more expensive, often last longer as they are more durable.
Banner hemming tape is a one-sided adhesive strip applied to the edge without needing to fold the banner. For banners that will have poles inserted, a clean fold without excess adhesive is key to a smooth installation.
Some sign makers also use hook and loop tape, like Velcro, for adjustable hems. This method provides flexibility and strength, although it may not be suitable for all banner types or long-term outdoor use.
Sewing
For fabric and mesh banners, sewing is a reliable option. Industrial sewing machines can stitch through heavy materials and allow for wide hems that accommodate rods or rope for added stability. Since no adhesives are involved, there’s no risk of residue interfering with mounting. However, sewing is limited to banners made from materials compatible with needle stitching and requires access to specialized equipment.
Welding
Welding is a great method for high-volume shops or banners exposed to harsh conditions. It provides a seamless and durable edge finish. There are three main types of welding:
- Hot Air Welding: Uses heated air and pressure to bond the folded edges. It creates strong, flat seams and is ideal for large-format banners, building wraps, or signs needing precise alignment.
- High-Frequency (Radio Frequency) Welding: Applies energy through electromagnetic fields to fuse layers. It allows for multi-layer bonding and precise control over seam quality.
- Impulse Welding: Pulses energy through heated bars, then cools the seam to reduce distortion. It delivers crisp, clean edges but works with fewer material types.
While welding requires a higher upfront investment, it offers speed, consistency, and strength, making it well worth it for shops with high production needs or demanding applications.
Clear PowerTape
Banner Ups Clear PowerTape provides a super strong hemming without the hassle of folding the edges. The PowerTape is made of a strong woven plastic material. To install place the Clear PowerTaepe on the tom and bottom edges of your banner. You can grommet through the tape or use our adhesive tabs. This tape creates a strong banner edge that holds up to the most intense outdoor weather conditions. You will save time and increase your banners strength.
Choosing the Right Hemming Method
There’s no universal solution for hemming banners. Your choice should be based on the material, project scope, and available tools. Here are a few factors to consider:
- Material: Vinyl, mesh, and fabric banners respond differently to each method. For example, sewing works great on mesh but not on rigid vinyl.
- Banner Size: Larger banners benefit from the strength and consistency of welded seams.
- Expected Exposure: Outdoor banners need stronger, UV-resistant bonds like those from welding or high-tack banner hemming tape.
- Production Volume: Welding or sewing machines offer long-term efficiency for bulk production while taping suits low-volume jobs.
- Budget: Taping and gluing are low-cost options but may compromise longevity.
Banner hem tape stands out as one of the most versatile and cost-effective options, especially for small to medium production runs and short lead times.
Tips for Best Results
No matter which method you choose, careful handling and precision will go a long way. Use a clean workspace, measure hems consistently, and apply even pressure when bonding or stitching seams. Avoid stretching the material, which can cause warping or weak spots. For taping, ensure surfaces are clean and dry for maximum adhesion.
Training and practice matter too. New equipment takes time to master, so start with test runs and refine your technique before rolling out client jobs.
Purchase Banner Ups Banner Hem Tape Online Today!
A well-hemmed banner is the difference between a temporary sign and a professional-grade marketing tool. At Banner Ups, we supply premium banner hemming tape and other finishing tools that help print shops and sign makers create stronger and more attractive banners. Whether you’re looking to try a new technique or stock up on reliable materials, we have you covered.
Browse our online store today and find the best hemming solution for your next project. If you need help choosing the right product, our team is ready to assist. We also offer free samples so that you can test out our products. Purchase our banner hem tape or order your free sample online today!