High-Performance Polyurethane Hot Melt Adhesive from China Suppliers - 8MPa Tensile Strength, 1.5m Drop Test Passed
Product Introduction
This PUR adhesive combines instant thermal set with permanent chemical curing. Applied as a heated liquid, it develops high initial tack the instant it cools, locking components within seconds. Over subsequent hours, it reacts with ambient moisture to crosslink into a high-strength structural bond.
For precision manufacturing, this polyurethane hot melt adhesive prevents nozzle stringing and irregular lines during automated jetting. Its stabilized rheology allows continuous bead widths down to fractions of a millimeter, ensuring zero squeeze-out and clean aesthetics without post-cleanup.
As a display bonding adhesive, it is widely used for touch screen lamination and cover glass sealing, providing optical clarity and durable adhesion. In smartphone mid-frame bonding, it securely joins the middle frame to glass or metal back covers, reinforcing structural integrity while maintaining ultra-thin profiles. For wearable device bonding, it absorbs mechanical energy, dampens vibrations, and redistributes stress to prevent glass shattering and adhesive delamination during drops. As an adhesive for electronic assembly, it seals out humidity, sweat, and dust while bonding firmly to anodized aluminum, engineering plastics (PC/ABS), and oleophobic-coated glass.
Features
Application
Frequently Asked Questions (FAQ)
Applied as a heated liquid, it rapidly develops high initial tack the instant it cools, locking assembled components securely within seconds without requiring extended clamping.
Yes, its stabilized rheology prevents nozzle stringing and allows continuous automated dispensing of bead widths down to sub-millimeter fractions with zero squeeze-out.
It combines an initial physical thermal set upon cooling for immediate handling strength with subsequent chemical crosslinking triggered by ambient moisture to form a high-strength permanent bond.
The adhesive absorbs mechanical shock energy, dampens vibration, and redistributes stress across interfaces to protect fragile glass and prevent delamination during drops.
It forms strong, durable structural bonds with anodized aluminum, engineering plastics (such as PC/ABS), and oleophobic-coated glass surfaces.
It creates a tight barrier that effectively seals electronic assemblies against sweat, humidity, dust penetration, and thermal cycling stress.
