TPUs for toe puffs & counters
| The PEARLBOND® range includes crystalline thermoplastic polyurethanes elastomers (TPUs) specially developed for use as raw material in the manufacture of heat activated toe puffs & counters (shoe industry). The PEARLBOND® grades are supplied in pellet form and can be applied by extrusion process (T-die) or sintering (in such case they must be previously cryogenically ground).
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| Product Range | |
| MSDS: Material Safety Data Sheet | |
| TDS: Technical Data Sheet |
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MFI (g/10 min) |
Shore Hardness |
Crystallization |
Thermoplasticity |
Softening |
Melting Range |
Download |
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MSDS |
TDS |
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 ECO D900 |
30 – 60 (2) |
52 ± 1 |
Extremely High |
Very High |
70 - 75 |
80 - 85 |
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110 |
15 – 25 (1) |
93 ± 1 A |
High |
Low |
90 – 100 |
160 - 180 |
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115 |
100 – 150 (1) |
91 ± 1 A |
Very High |
High |
60 – 70 |
100 - 120 |
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101 |
30 – 60 (2) |
51 ± 1 D |
Very High |
Very High |
61 – 65 |
63 - 67 |
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103 |
60 – 100 (2) |
51 ± 1 D |
Very High |
Very High |
58 – 62 |
60 - 64 |
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122 |
90 – 145 (1) |
54 ± 1 D |
Extremely High |
Very High |
63 – 67 |
67 - 71 |
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120 |
15 – 30 (2) |
54 ± 1 D |
Extremely High |
Very High |
62 – 66 |
64 - 68 |
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121 |
30 – 60 (2) |
54 ± 1 D |
Extremely High |
Very High |
61 – 65 |
63 - 67 |
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123 |
60 – 100 (2) |
54 ± 1 D |
Extremely High |
Very High |
58 – 62 |
60 - 64 |
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(1) 170º C / 21.6 Kg (2) 170º C / 2.16 K |
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One of the most important features of TPUs for the toe puffs & counters industry is their crystallization rate. The crystallization rate is determined in accordance with Merquinsa method (MQSA nº 12 B). The figure below shows the difference between some PEARLBOND® grades. |
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The melt viscosity determined in accordance with DIN 53.735 indicates the TPU viscosity at different temperatures. The figures below (Fig. 1 and Fig. 2) show such values for some PEARLBOND® grades. |
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fig.1 |
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fig.2 |