PET strapping seal

To close the heavy polyester strapping cycle where the actual PET tension causes slippage in smooth seals, a metal staple with calibrated internal teeth is required to bite into the rigid plastic surface. This PET strapping seal—also known as a serrated staple or serrated seal—is manufactured by Maxtens from galvanized steel with internal serrated teeth, in boxes of 600 units for 13-16 mm strapping, designed for heavy-duty strapping in construction, export, agro-industry, and operations where the seal cannot slip under the actual polyester tension.

Key Benefits

• Serrated internal teeth: The internal texture of the seal bites into the smooth, rigid surface of the PET strap, maximizing mechanical friction to prevent slippage under high tension.
• High-strength galvanized steel: Protection against oxidation during storage and transit in Caribbean climates, a key condition for maintaining structural integrity during prolonged shipments.
• Compatibility with standard tensioners: The format fits with common manual sealing and crimping tools on the market for 13-16 mm strapping, requiring no proprietary tool.
• Permanent and flat closure: When deformed with the pliers, the seal remains flat and without sharp edges that could cut the operator's hands or damage adjacent product on the pallet.
• Controlled Maxtens production: Uniform teeth throughout the box, a critical condition for each seal to provide the same grip.

Typical Applications and Uses

• Palletizing heavy construction materials with PET strapping: bricks, blocks, bundled sacks.
• Sealing wood loads, metal profiles, and industrial parts for inter-island export.
• Agro-industrial operations with dense sacks, bales, or bulk product palletized with PET.
• Closing bulky packages where plastic buckles cannot withstand the necessary tension.

Quality and Durability

An economical PET seal fails in two ways: the internal teeth are superficial (which causes the seal to slip under real tension) and the galvanization is deficient. Maxtens works with deep teeth and uniform galvanization, which separates a professional operation seal from a generic consumable. In export where the pallet spends days in transit, a slipping seal is equivalent to losing the cargo: the difference is measured in actual shipping security.