DELO PHOTOBOND LA4878: Fast, reliable, and secure

For reliable display bonding, DELO PHOTOBOND LA4878 will be an optimal choice in many cases. This modified urethane polymer has a special curing process, activating humidity curing via light before subsequent humidity curing. This means that the adhesive does not cure immediately following dispensing. Rather, curing starts as soon as the adhesive is exposed to high-intensity UV or visible light, curing on demand.

Final curing takes place at room temperature after components are joined, enabled by ambient humidity. Initial strength is reached after only a few minutes. Achieving a pre-fixed state in mere seconds accelerates production processes and is also beneficial if the adhesive is to be used as a sealant.

Thanks to this novel curing mechanism, opaque components such as glass display covers, which often have a black mask at its edges which are bonded to the housings, can be quickly and reliably joined without the need for additional heat curing.

The solvent-free adhesive can be used at temperatures ranging from -40 °C to +120 °C and has very good tension-equalizing characteristics thanks to an elongation at tear of 500%.

DELO PHOTOBOND LA4878 at a glance

• Fast, reliable, and secure for display bonding.
• Curing process: Light activation initiates humidity curing.
• Initial strength achieved in minutes; pre-fixed state in seconds.
• Suitable for bonding opaque components like glass display covers.
• Solvent-free adhesive.
• Temperature range: -40 °C to +120 °C.
• High elongation at tear: 500% for tension equalization.

DELO-PUR SJ9356: A solution for sealing large bonding gaps

Another product used for bonding display frames and housings is DELO-PUR SJ9356, a silane terminated polyurethane-based adhesive, free of isocyanates and silicones.

The two-component adhesive cures at room temperature and reaches its initial strength after approximately 4 hours. Its flexibility ensures stable and tension-equalizing bonds and seals, even with dynamic loads. The adhesive's flow resistance and excellent wet adhesion makes it well-suited for sealing larger gaps (> 2 mm), thus protecting components permanently against humidity and dust.

To simplify its handling, DELO-PUR SJ9356 is not only available in cartridges and hobbocks, but also in double-chamber cartridges. Mixing and dispensing this two-component adhesive is thus easy and fast.

DELO-PUR SJ9356 features a temperature range from -40 °C to +105 °C and an elongation at tear of 120%.