Overview: The Role of Banner Tape in Large Format Finishing
Large format banners printed on PVC flex or mesh materials require proper finishing before they can be installed outdoors. Hemming — folding the edges of the banner and sealing them — reinforces the banner perimeter, prevents edge fraying, and creates a clean, professional appearance. It also provides the material reinforcement needed to set eyelets without tearing. For high-quality, weather-resistant banner finishing, S335 double-sided banner tape is the professional standard.
Unlike general-purpose tape, the S335 is specifically formulated to bond to coated PVC flex and mesh banner materials — surfaces that are notoriously difficult for standard tapes to adhere to. Its weather-resistant adhesive system maintains bond integrity through rain, UV exposure, humidity, and temperature fluctuations, ensuring that hemmed edges stay sealed throughout the lifespan of the outdoor banner.
The 20mm width is optimal for banner hemming, providing a generous fold coverage that distributes eyelet load effectively. The 25m roll length is designed to match the output of a busy print shop — enough tape for multiple large banners in a single roll, reducing interruptions during finishing work.
Specifications
| Specification | Detail |
|---|---|
| Model | S335 |
| Width | 20mm |
| Length | 25m |
| Type | Double-sided banner tape |
| Weather Resistance | Yes — suitable for outdoor use |
| Application | Banner hemming and seaming |
| Material Compatibility | PVC flex, mesh banners, vinyl |
How to Hem Banners Using S335 Banner Tape
Lay the printed banner flat on a clean cutting mat or work surface with the print face down. Measure and mark the fold line for the hem — typically 25–30mm from the edge. Apply a strip of S335 tape along the marked fold line, peeling one release liner and pressing the tape firmly onto the banner surface. Ensure the tape runs continuously along the full edge length without gaps, which could allow moisture ingress in outdoor installations.
Fold the banner edge over the tape, aligning the folded edge with the opposite side of the tape. Press the fold firmly from the center outward to avoid trapping air bubbles beneath the hem. Use a squeegee or a flat-edged tool to apply firm, even pressure along the entire hemmed edge. This ensures maximum contact between the adhesive and the banner material on both sides of the fold.
After hemming all four sides, allow the adhesive to set for at least 30 minutes before setting eyelets. This gives the bond time to fully contact the banner material, which is particularly important in humid conditions common in the Philippines. For urgent jobs, pressing the hem with a moderate heat source can accelerate adhesive activation on some PVC surfaces.
Tip: For banners that will be installed in windy locations or exposed to heavy rain, consider double-hemming the edges — applying two parallel strips of S335 tape for added reinforcement. This significantly reduces the chance of hem separation under wind load.
Final Verdict
Double Sided Banner Tape S335 is an essential finishing consumable for any print shop producing outdoor banners. Its weather resistance, PVC-compatible adhesive, and ideal 20mm width make it the best tape choice for professional banner hemming and seaming. The 25m roll provides excellent value for busy production environments.
Strengths
- Weather-resistant adhesive for outdoor banner installations
- Formulated specifically for PVC flex and mesh banner materials
- 20mm width ideal for standard banner hem folding
- 25m roll provides ample supply for multiple projects
- Reinforces banner edges for eyelet installation
Limitations
- Not suitable for non-banner materials like fabric or paper
- Requires firm application pressure for full adhesion
- Not repositionable once bonded