PUR Hot Melt Adhesive for Smartphone Display Bonding

Application Overview

SINOHESIVE PUR hot melt adhesive for smartphone display bonding is designed for fast assembly of smartphone and electronic display components.It is suitable for bonding metals, glass, and most plastics. The adhesive can be used with automated dispensing equipment equipped with heated syringes and dispensing needles as well as precise temperature control, providing reliable bonding support for adhesive dispensing, component alignment, pressing, and fixation of display assemblies.

Low VOC & Environmentally Responsible

SINOHESIVE focuses on PUR adhesive solutions that support lower-VOC manufacturing.The adhesive uses a 100% solids system and is suitable for smartphone display bonding projects where manufacturers place greater emphasis on the production environment, product odor, and material compliance.Actual VOC, odor, and compliance performance should be verified based on the finished-product construction, manufacturing process, and applicable local regulations.

Key Benefits

Good Flowability

The adhesive provides good flowability, supporting automated dispensing and consistent adhesive bead formation for electronic display assemblies.Actual dispensing performance should be verified based on needle size, equipment temperature control, dispensing path, and component gap.

High Initial Tack for Fast Assembly

The adhesive provides high initial tack, supporting fast bonding, positioning, and pressing of display components.It is well suited for electronic assembly applications requiring fast production cycle times.

Extended Open Time

The adhesive provides an extended open time, allowing sufficient working time for display component alignment and assembly.Actual open time may vary depending on adhesive amount, application temperature, substrate type, and ambient conditions.

Weathering and Solvent Resistance

After curing, the adhesive layer provides a broad service temperature range along with good weathering and solvent resistance.If subsequent processing involves high temperatures, high mechanical loads, corrosive substances, or solvents, the adhesive should be allowed to fully cure before further processing. Final performance should be verified through actual component testing.

Application Support for Your Smartphone Display Bonding Project

Final bonding performance can be affected by the surface condition of glass, metals, plastics, or coatings, as well as component structure, adhesive bead design, dispensing amount, assembly pressure, equipment condition, and actual processing parameters.

SINOHESIVE can provide sample testing and adhesive selection support based on your specific project requirements, helping you complete the necessary validation before full-scale production.

• Material compatibility evaluation for display glass, frames, backplates, and plastic structural components

• Process recommendations based on automated dispensing equipment, dispensing paths, and assembly cycle time

• Guidance on substrate surface cleaning, pretreatment, dispensing amount, pressing, and curing conditions

• Sample testing and comprehensive evaluation of initial positioning, bond strength, temperature resistance, weathering resistance, and chemical resistance

• Technical support for production trials, scale-up, and ongoing process optimization

Contact SINOHESIVE to request a PUR hot melt adhesive sample and technical recommendations for smartphone display bonding applications.