Summary
- The Science of Viscoelasticity: Tape acts as both a solid and a liquid; summer heat shifts it toward a liquid state, causing it to lose the internal strength (cohesion) needed to hold a bond.
- Winter vs Summer Mechanics: In winter, adhesives are more elastic and rigid, whereas summer heat can cause “shear failure,” where the tape slides or “oozes” off the surface.
- The UAE Climate Factor: High ambient temperatures and humidity in regions like Dubai accelerate oxidation and UV degradation, making standard rubber-based tapes brittle or gummy.
- Acrylic vs Hot-Melt: For consistent performance in extreme heat, acrylic adhesives outperform hot-melt rubber adhesives because they maintain chemical stability and UV resistance at higher temperatures.
- Application Best Practices: To prevent failure, users should apply tape during cooler hours to allow for proper “wet out” and ensure surfaces are free of summer dust and moisture.
In the extreme climate of the UAE and the wider Middle East, “tape failure” is a common industrial challenge. A high-quality pressure-sensitive adhesive (PSA) that creates a structural bond in January may suddenly “ooze,” slide, or lift during the peak summer months. Understanding why this happens is key to optimizing your packaging efficiency and reducing transit damage.
The Science of Seasonal Adhesion: Viscoelasticity
Adhesive tape is a viscoelastic material, meaning it possesses both liquid-like (viscous) and solid-like (elastic) properties. To form a secure bond, the adhesive must “wet out” flowing into the microscopic pores of the surface (substrate).
- Winter Performance: Lower temperatures increase the “elastic” nature of the tape. While the adhesive is firmer and may require more initial pressure to bond, it remains stable once set.
- Summer Failure: High ambient temperatures shift the adhesive toward its “viscous” or liquid state. As the material softens, its cohesive strength weakens the internal bond holding the glue together weakens. This results in the tape sliding off the box under tension, a phenomenon known as “shear failure.”
4 Critical Factors for Heat-Related Tape Failure
- Reduced Cohesive Strength: When temperatures exceed a tape’s “Service Temperature Range,” the polymer chains move too freely. This causes the adhesive to become “gummy” and lose its grip.
- Thermal Expansion Stress: Substrates like corrugated cardboard and plastic expand at different rates in the heat. This constant microscopic movement puts mechanical stress on the bond, causing the edges to “flag” or lift.
- UV Degradation & Oxidation: Intense UAE sunlight accelerates chemical aging. Standard rubber-based adhesives can turn brittle and yellow when exposed to UV rays, losing all adhesive properties.
- Humidity & Moisture Barriers: High summer humidity creates a microscopic layer of moisture on surfaces. If the tape isn’t designed to displace this moisture, it fails to “wet out,” leading to immediate bond failure.
Selecting the Right Solution for the Middle East
As a leading Adhesive Tape Manufacturer in the UAE, AAB Industries utilises advanced R&D to engineer tapes that thrive in thermal extremes. Choosing the right chemical base is essential:
- BOPP Tapes/Acrylic Adhesives (The Summer Standard): Unlike hot-melt rubber, acrylic adhesives offer superior UV resistance and thermal stability. They maintain their integrity even when temperatures soar, making them the preferred choice for long-term storage and export.
- BOPP Packing Tapes: Our high-micron BOPP tapes are designed with specific coat weights to handle the expansion and contraction of packaging materials in non-climate-controlled warehouses.
- Speciality Tapes: For construction or HVAC, our Aluminium Foil and Duct Tapes are engineered with high-tack adhesives that remain stable in high-heat environments.
Industrial Best Practices for Summer Taping
To ensure your packaging remains secure during the hottest months, follow these consultancy-backed steps:
- Optimise Dwell Time: Apply tape during cooler morning hours to allow the bond to reach maximum strength before peak heat.
- Surface Preparation: Ensure surfaces are free of summer dust and condensation to allow for proper molecular contact.
- Check Service Temperatures: Always verify the technical data sheet for the “Service Temperature Range” to ensure it matches your transit conditions.
Partner with AAB Industries
AAB Industries is a specialist in manufacturing and customising self-adhesive tapes for the logistics, food manufacturing, and engineering sectors. With a state-of-the-art facility in Dubai producing over 50,000 rolls daily, we provide the technical expertise and R&D infrastructure to solve your most complex packaging challenges.
