Frequently Asked Questions

• What's the difference between OPP and standard polypropylene? +

  OPP (Oriented Polypropylene) is a premium form of polypropylene that has been stretched during manufacturing to create superior clarity, strength, and moisture resistance compared to standard polypropylene film. This orientation process aligns the polymer chains, resulting in a crystal-clear finish that showcases print colours and details without the haze or distortion common in lower-grade plastics, making OPP the professional choice for photography packaging.

• Can clients reseal the bags multiple times? +

  Yes, the self-seal adhesive strip is designed for multiple open-and-close cycles, allowing clients to remove prints for viewing or framing and then reseal the bag for continued protection during storage. Whilst the adhesive strength may gradually diminish after numerous resealing cycles, typical client use patterns (occasional viewing and resealing) will not significantly impact bag functionality throughout the print's useful display life.

• Are these bags archival quality for long-term storage? +

  These OPP bags are designed for presentation and short-to-medium term protection rather than archival storage. Whilst the polypropylene material is chemically stable and won't damage prints through direct contact, archival-grade storage typically requires acid-free materials with specific pH levels and additional considerations beyond standard presentation packaging. For client deliverables and typical display purposes, these bags provide excellent protection; for true archival preservation exceeding decades, consult archival specialists for purpose-specific materials.

• Will the bags fit mounted prints or just unmounted? +

  The compatibility guide specifically references Stimolantè Strut Mount outer dimensions, indicating these bags are designed to accommodate mounted prints. The sizing accounts for mount thickness, enabling professional packaging of complete strut mount deliverables rather than just flat prints. This makes them ideal for photographers delivering finished presentation products to clients rather than requiring separate packaging for prints and mounts.

• Why do some mount sizes have multiple compatible bag options? +

  Multiple bag options for a single mount size provide flexibility based on your presentation preferences and specific requirements. Larger bags offer generous clearance and easier insertion, whilst smaller bags provide a tighter, more tailored fit. Some photographers prefer minimal excess material for a sleek presentation, whilst others value additional space for inserting promotional materials, business cards, or care instructions alongside the mounted print. Choose based on your packaging workflow and desired presentation aesthetic.

• Are bulk discounts available for high-volume users? +

  Yes, we offer volume pricing for photographers and studios with high packaging requirements. If you regularly use large quantities of poly bags across multiple sizes, contact our sales team on 0208 527 6006 to discuss customised bulk pricing that reflects your volume needs. We can also advise on optimal inventory levels to ensure you maintain sufficient stock during peak seasons without tying up excessive capital in packaging materials.

• How should I store unused bags to maintain quality? +

  Store poly bags in a cool, dry location away from direct sunlight and heat sources. Excessive heat can affect adhesive performance, whilst UV exposure may degrade the film over extended periods. Keep bags in their original packaging or sealed containers to prevent dust accumulation on the adhesive strip and maintain optimal sealing performance. When stored properly in typical studio conditions, poly bags maintain their clarity and sealing effectiveness indefinitely, allowing you to stock up without concerns about material degradation.

• Can I write on the bags with a marker? +

  Standard permanent markers will write on OPP film, though the ink may take slightly longer to dry compared to writing on paper. For best results, use permanent markers specifically designed for plastic surfaces. However, for professional presentation to clients, we recommend using pre-printed labels or inserts rather than writing directly on bags, as handwritten markings can detract from the polished appearance that crystal-clear packaging provides. Direct marking is more suitable for internal organisation and inventory management than client-facing deliverables.