PET strap through a Gulf summer: storage, staging and the right questions on heat and UV

Summer in the Gulf is a test for anything left in the sun, and plastic strap is no exception. In June 2022, packing and logistics teams across the region are also adjusting to the annual midday outdoor work break in the UAE. Both factors affect how PET strap should be stored, how long strapped loads wait outdoors and what a buyer should ask a strap supplier.

This guide stays with what is known and checkable. It gives no temperature limits or exposure durations for any strap, because those depend on the specific grade and need to come from its supplier.

The midday break changes the yard’s day

On 8 June 2022, Dubai Eye reported the Ministry of Human Resources and Emiratisation’s announcement that work in open areas under direct sun is prohibited from 12:30 to 15:00 between 15 June and 15 September. Employers must provide shaded rest areas, emergency work is excluded under specific conditions, and non-compliant companies face fines of 5,000 to 50,000 dirhams.

For a packing yard, the break moves loading and strapping into the morning and late afternoon. Two side effects matter for strapping. Loads strapped in the morning may stand outdoors through the hottest hours before collection. And partly used strap rolls, dispensers and tools are easily left in the yard when the team stops at 12:30.

Plan for both. Strap loads as close to dispatch as the schedule allows, give waiting loads shade where possible and bring rolls and tools under cover at the break.

What heat and sun ask of PET strap

Material choice is the starting point. PAC Strapping Products’ FAQ describes polyester strap as performing across a broader temperature range than polypropylene and as better suited to heat exposure during transit or storage, noting that polypropylene can soften in high heat. The same FAQ explains that polyester recovers much of its initial stretch and keeps retained tension if a load settles, which matters for loads such as blocks or tiles that can bed down during a journey.

Sunlight is a separate question from heat. Ultraviolet resistance depends on the strap’s formulation, and the only reliable source for a particular grade is the strap supplier. Do not infer it from colour or from the word “polyester” on a datasheet. Ask whether the grade includes UV stabilisation, what exposure evidence exists and how that evidence was produced.

Consistency between batches is worth asking about too. A 2018 Petnology report on a Dubai strap producer describes extrusion from post-consumer bottle flake, with filtration to remove particles that could cause breaks during stretching. The example shows that feedstock and process control shape the finished strap. A buyer can reasonably ask how a supplier keeps a grade consistent from one batch to the next.

A summer storage and staging checklist

• Store rolls indoors in their original packaging, off the floor and away from sunlit doors and walls.
• Bring part-used rolls and dispensers under cover at the midday break and at the end of each shift.
• Do not keep spare rolls in vehicle cabs or open trailers.
• Rotate stock first in, first out, and record the delivery date on each roll’s packaging.
• Strap loads as close to collection time as practical, and shade loads that must wait.
• Set aside strap that has been left outdoors and shows discolouration, surface cracking or unusual stiffness, pending review.
• Keep the roll label or batch reference with any strap involved in a complaint.

Joints in the heat

A clipped PET joint depends on the strap, the clip and the crimping tool working together. A clip’s nominal strap width and sheet thickness identify the component. Whether a given joint performs as needed in a hot yard has to be established for the actual strap, clip and tool, not inferred from those dimensions.

Metal clips and tool surfaces left in the sun become hot to handle. Keep cartons of clips in the shade and follow the tool maker’s guidance on operating conditions, including for battery-powered tools. If the application involves long outdoor exposure after strapping, say so when agreeing the joint evaluation, so that the evidence reflects the real conditions rather than an air-conditioned test room.

Put the exposure into the RFQ

A supplier can only answer the question you ask. Include the conditions in the enquiry:

RFQ field	What to describe
Storage before use	Indoor or outdoor, covered or open, typical storage period
Exposure after strapping	Where loaded pallets wait and for roughly how long
Transport	Open or closed vehicle, container, route and duration
Destination	Inland or coastal site, any further outdoor storage
Evidence requested	UV stabilisation statement, exposure evidence and how it was obtained
Joint	Clip or seal reference, tool model and acceptance requirement

Our Gulf destination guide explains how to define the delivery point, and the joint selection guide covers matching strap, closure and tool.

YAKU lists PET strap on request, with sheet metal clips for clipped joints. Send the exposure details with your enquiry through the enquiry page. Breaking strength, grade information and roll length are confirmed for the actual proposed supply.