Secure Poly Mailer | Mailing Bag

UPM LDPE/HDPE Courier Mailers – Secure, Tamper-Proof Delivery Solutions

Material: HDPE/ LDPE
Size: 100 – 1,000mm
Thickness: 0.03mm – 0.1mm
Printing: Up to 8 colors, Flexographic or Rotogravure
MOQ: 5,000 pcs

Crafted from tough, lightweight LDPE/HDPE film, UPM courier mailers provide reliable protection for e-commerce shipments, documents, samples and parcels. Engineered for security, these mailers feature high-strength welds, excellent tear resistance and customizable security enhancements to deter tampering custody integrity.

Key features:
Tamper-evident closures with polyethylene tape – any attempt to open leaves visible permanent damage

Opaque white or clear versions with high-clarity printing (up to 8 colours via rotogravure/flexo)
Sizes from 150×220 mm to 600×900 mm, thickness 40–120 microns
Water-resistant, puncture-resistant and recyclable mono-material design
RoHS & REACH compliant, no harmful substances

Ideal for online retailers, logistics companies, pharmaceutical samples, legal documents and high-value goods. Our mailers withstand rough handling during transit while keeping contents dry and secure.
Direct factory advantages:

Fully custom sizes and printing
Fast prototyping and short lead times (10–14 days for samples)
Flexible MOQs starting at 5,000 pcs
40% solar-powered production + in-house recycling
ISO9001 & BSCI accredited for quality and ethical standards

Choose UPM for peace-of-mind shipping that protects your brand and customers.
Enquire now: WhatsApp +852 2462 4629
Email: ws@upm.hk
Website: upmplastic.com