PHENODUR® PR 909w/50WA is a water-dilutable, thermosetting, plasticized phenolic resin primarily used as a binder for the production of solvent-resistant interior coatings for non-food metal packaging goods. Here are the key points from its technical datasheet:
Type: Water dilutable, thermosetting, plasticized phenolic resin
Form of Delivery (f.o.d.): 50% in water (50WA)
Product Data:
- Dynamic Viscosity: 290 - 1490 mPa.s (25 1/s; 23 °C)
- pH-Value: 7.0 - 9.5 (10%)
- Iodine Colour Number: <= 100 (slight opalescence possible)
- Non-Volatile Matter: 48 - 52% (1 h; 125 °C; 2 g)
- Color/Appearance: Dark brown, clear
- Density (Liquids): Approx. 1.10 g/cm³ (20 °C)
- Flash Point: > 100 °C (Pensky-Martens)
Special Properties and Use:
- Used as a sole binder for producing solvent-resistant interior coatings for non-food metal packaging goods.
- Application is typically done by roller- or spray-coating methods.
- Diluted paint pH-value (10%) should be in the range of 8.0 - 8.5, with adjustment made using dimethyl ethanol amine.
- Baking condition: minimum 15 min / 200 °C.
Storage:
- Recommended storage temperature: up to 25 °C.
- Shelf life in original containers: at least 365 days.
- Products containing water may freeze below 0 °C, requiring extended heat treatment for regeneration.
Distinguishing Features:
- Compared to Resydrol AM 410w, PHENODUR® PR 909w/50WA has a lower solvent content and better solvent resistance.
This resin is tailored for specific applications requiring solvent resistance and durability, particularly in non-food metal packaging coatings.