TPU Hot-Melt Adhesive Film Compounds | Textile & Foam Lamination
TPU Hot-Melt Adhesive Film (HMA) Compounds
For lamination and bonding projects where success depends on a stable balance of:
adhesion to real substrates, activation temperature window,
and post-aging durability (heat, humidity, flex, washing, chemical exposure).
Supply forms:
TPU HMA film compounds (pellets) for film extrusion/coating
Finished TPU hot-melt adhesive films (project-based, on request).
Most failures happen when initial tack is optimized but aging and process window are ignored.
TPU HMA film compounds (pellets) for film extrusion/coating
Finished TPU hot-melt adhesive films (project-based, on request).
Most failures happen when initial tack is optimized but aging and process window are ignored.
Adhesion System
Activation Temp
Lamination Window
Flow Control
Wash / Aging Durability
Substrate Compatibility
Activation Temp
Lamination Window
Flow Control
Wash / Aging Durability
Substrate Compatibility
Typical Applications
- Textile & apparel lamination: fabric-to-fabric, fabric-to-membrane, logo/patch bonding.
- Footwear: upper-to-lining, reinforcement layers, TPU-to-EVA/foam bonding (process-dependent).
- Leather / synthetic leather bonding: decorative layers and structural laminations.
- Industrial composites: film-laminate stacks where temperature window and aging retention matter.
Fast Selection (Choose the Dominant Constraint)
Low-Temp Activation
When substrates are heat-sensitive or line temperature is limited.
- Lower activation temperature target
- Broader lamination window
- Minimize shrink / distortion risk
High Bond Strength
When peel/shear strength is primary (structural bonding).
- Higher cohesive strength
- Better shear resistance
- Substrate-specific adhesion system
Aging / Wash Durability
When bonds must survive heat-humidity, washing, flex, and time.
- Post-aging peel retention
- Humidity/heat resistance route
- Reduced delamination risk
If your project has two or more hard constraints (e.g., low-temp activation + high peel + wash durability),
it is an Advanced Functional case: formulation + process window must be tuned together.
it is an Advanced Functional case: formulation + process window must be tuned together.
Common Failure Modes (Cause → Fix)
In hot-melt film bonding, “it sticks at first” is easy. The real battle is stable bonding across
temperature window, pressure/time, and aging exposure.
| Symptom | Most Common Cause | Fix Direction |
|---|---|---|
| Passes initial peel, then delaminates after aging | Adhesion system not matched to substrate; cohesive strength too low; aging route missing | Switch adhesion route; raise cohesive strength; validate with heat-humidity / wash cycles |
| Narrow activation window (unstable line) | Flow/viscosity window too tight; activation temp too close to process limit | Broaden activation window; tune melt flow; adjust film thickness & lamination conditions |
| Weak bond on one substrate only | Surface energy mismatch; contamination / release agents; incorrect primer strategy | Substrate-specific route; surface treatment/primer check; run quick surface diagnostics |
| Edge lifting / tunnel / wrinkles after lamination | Shrink mismatch, cooling tension, uneven activation, or pressure distribution issues | Process tuning (temp/pressure/time/cooling); adjust structure; stabilize winding conditions |
| Film flows too much (bleed-through / print distortion) | Low melt strength at activation; over-temperature; thickness too high for structure | Increase melt strength; reduce activation temp; optimize thickness and lamination pressure/time |
| Brittleness / cracking in cold or after time | Formulation too stiff; low-temp package missing; aging route not matched | Improve low-temp flexibility; adjust hard/soft segment balance; validate flex cycles |
What We Need to Recommend a Shortlist
Bonding stack
- Substrate A / Substrate B (material, coating, surface treatment)
- Film thickness target (and tolerance)
- Bond type (peel vs shear priority)
Process & validation
- Lamination temperature range, pressure, dwell time
- Cooling and tension/winding conditions
- Aging plan: heat-humidity, washing cycles, chemicals, flex
Request Samples / TDS
We can support both pellets (for your film extrusion/coating) and finished films (project-based).
Share the key inputs below and we will recommend a shortlist and provide TDS/SDS for trials.
To get a fast recommendation, send:
- Substrates: material + surface condition (treated / coated / release agents)
- Bond requirement: peel/shear targets and operating temperature
- Activation window: available lamination temperature range and dwell time
- Aging plan: heat-humidity, wash cycles, chemicals, flexing (if any)
- Supply form: pellets for film making, or finished adhesive film (thickness/width/roll)
