White Film Permanent Bag Sealing Tape

Product Overview

Sanlin’s White film Permanent Bag Sealing Tape is engineered for secure, tamper-evident sealing of courier, express bubble mailers, cooler bags and security pouches. Featuring a multi-layer composite film (PEPA/BOPP/PET ) bonded with hot-mel , it delivers ultrahigh initial tack (≥900 g/in) and 24-hour holding power across –50 °C to +70 °C. Once applied, the seal cannot be opened without tearing the bag—guaranteeing package integrity from warehouse to doorstep.

Key Features

Tamper-Evident Security: Seal tears the bag film on attempted opening, deterring theft and fraud.

Ultra-High Adhesion: ≥900 g/in initial tack; holds reliably up to 24 hours under load.

Temperature & Climate Resistance: Stable performance in –70 °C to +70 °C environments—ideal for coldchain and hot climates.

Easy-Peel Finger-Lift Liner: Patented embossed liner design for smooth, onestep liner removal.

Durable Composite Film: PEPA/BOPP/PET layers resist moisture, puncture and UV exposure.

Customizable Specifications: Widths from 10 mm to 55 mm; lengths from 500 m pancakes to 5,000 m spools; inner cores: 3″ or 6″.

Applications

Courier & Express Bags (e.g., DHL, FedEx, UPS)

Bubble Mailers & Heavy-Duty Packaging

Insulated Cooler Bags for seafood, pharmaceuticals & perishables

Security Pouches & Tamper-Evident Envelopes

Magazine Mailing Bags & Promotional Kit