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Holding time at 25 °C and 180° peel strength at 25 °C of stainless steel/TPU PSA joints.
| PSA | Holding Time (min) | 180° Peel Strength After 30 min (kN/m) |
180° Peel Strength After 72 h (kN/m) |
|---|---|---|---|
| 80TPU1/20TPU2 (A) PSA | 442 ± 134 | 1.29 ± 0.06 (CA) a | 1.61 ± 0.07 (CA) a |
| 80TPU1/20TPU2 (B) PSA | 845 ± 75 | 0.95 ± 0.03 (CA) a | 1.07 ± 0.02 (CA) a |
a Locus of failure: CA, cohesive failure of the blend.
