The Polypropylene series ROWALIT® 600-Serie consists of modified polypropylene for textile coatings. They are synthesized by low-pressure solution polymerisation by usage of specific catalysts.
Comparing to other thermoplastic hotmelt adhesives, initial bond strength of PP is lower. It provides resistance against oils, lubricants and many solvents. Polypropylene provides good heat resistance that is used in automotive applications. Examples are
- motor compartment isolation, headliner (automotive)
- bondings requiring good heat resisitance
- binder for fibre-nonwovens (substitute for phenolic-resin)
| Product name | Type | Melting range | Melt Flow Index | Powder sizes | Resistance to dry cleaning | Hand iron | Enzyme washing | Washing resistance | Steam resistance | Stone-wash resistance | Heat resistance | Fusing conditions with flow-through-press | Appearance | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pastedot | Doubledot | Powderdot | Scatter | Granules | Lamination temperature | Pneumatic pressure | Time | ||||||||||||
| ROWALIT 600-1 | Polypropylene | 132 – 136 °C DSC | 4 g / 10 Min. (MFI 190°C) 8 g / 10 Min. (MFI 230°C) | ✕ | 80 – 200 µm | 0 – 200 µm | ✓ | ✕ | 95 °C | yes | 115 °C | 140 – 180 °C | 3 – 6 N/cm² | 12 – 30 Sek. | Powder | ||||
| ROWALIT 690 | Polypropylene | 150 – 165 °C DSC | 20 g / 10 Min. (MFI 190°C) | ✓ | ✓ | ✓ | ✓ | ✓ | 95 °C | yes | 150 °C | 160 – 200 °C | 3 – 6 N/cm² | 12 – 25 Sek. | Pellets, Powder | ||||