What Are Long Poly Mailers Used For?Long poly mailers (also called blueprint bags or plan bags) are specially designed for shipping and storing oversized, rolled documents and materials that won't fit in standard mailers. Common applications include: - Blueprints & Construction Plans: Protect architectural drawings, engineering plans, and site maps from moisture and tears
- Wallpaper & Fabric: Ship wallpaper rolls, fabric bolts, and textiles without crushing or water damage
- Posters & Artwork: Mail large-format prints, posters, and art safely
- Long Parts & Tubing: Package narrow, elongated items like rods, tubes, and molding
Features & SpecificationsAll Prism Pak long poly mailers include: - 2.5 Mil Thickness: Heavy-duty polyethylene resists punctures and tears
- Self-Seal Closure: Tamper-evident adhesive strip on one end for secure sealing
- Water-Resistant: Protects contents from rain, snow, and moisture during shipping
- Lightweight: Reduces shipping costs compared to tubes or boxes
- Reusable: Durable enough for multiple uses, saving money on repeat shipments
How to Choose the Right SizeMeasure your rolled document or item diameter and length, then add 2-3 inches to the length for comfortable insertion. Popular sizes: - 6" x 39": Standard blueprints, small wallpaper rolls
- 9.5" x 45": Large construction plans, oversized blueprints
- 13" x 45": Wide-format prints, multiple rolled documents
Frequently Asked QuestionsWhat is a long poly mailer?A long poly mailer is a narrow, elongated 2.5 mil polyethylene shipping bag with a self-seal adhesive strip, made for rolled items that are too long for a standard mailer. It is also called a blueprint bag or plan bag, and Prism Pak stocks it in 6" x 39", 9.5" x 45", and 13" x 45". What size long poly mailer do I need for blueprints?Roll your document, measure its diameter and length, then add 2-3 inches to the length for easy insertion. Standard blueprints and small wallpaper rolls fit the 6" x 39" mailer, large construction plans and oversized blueprints fit the 9.5" x 45", and wide-format prints or several rolled sheets together fit the 13" x 45". Are long poly mailers waterproof?They are water-resistant, not fully waterproof. The 2.5 mil polyethylene protects contents from light rain and ambient moisture in transit, but for extreme weather we recommend double-bagging or adding a waterproof outer layer. Can you reuse a long poly mailer?Yes. At 2.5 mil the film is sturdy enough for several trips, which is why print shops often use the same mailer for repeat deliveries. The self-seal adhesive strip is single-use, so reseal with packing tape on the second and later uses. What is the difference between a poly mailer and a paper blueprint tube?A poly mailer weighs less, so it costs less to ship, and it is water-resistant and flexible enough to fit odd-diameter rolls. A rigid paper tube gives more crush protection for very delicate originals but costs more in both material and dimensional shipping weight. Do you offer custom printing on long poly mailers?Not at this time. We stock plain white long mailers with a smooth surface that takes shipping labels and postage well. For large orders, contact us and we will review custom options. Who uses long poly mailers?Architecture firms, engineering and construction companies, reprographics and blueprint services, sign and poster printers, wallpaper and fabric sellers, and manufacturers shipping long narrow parts such as rods, tubing, and molding. Related ProductsLooking for other packaging solutions? Browse our full line of poly bags, bubble mailers, and shipping supplies for other packaging needs, or contact us for a wholesale quote.
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