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Rate–Heat Bonding Compass
Route the first controlled hot melt adhesive trial by process pace, service heat, sustained load, and moisture. The result identifies what to measure first; it is not a material-grade recommendation or a universal press recipe.
Describe the Process Window
First-Test Route
Protect wet-out time
First measurement
Measure incoming substrate and bond-line temperature.
Priority checks
- Record mating delay and cooling path.
- Confirm surface preparation and bond geometry.
Decision boundary
Use the result to organize a controlled trial. The exact TPU, EVA, PA, PES, or PO grade still requires the real substrate pair, adhesive dimensions, process record, and acceptance test.
