Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
Features & Benefits
- Labeling Claims
- Distinguishing Features
Phenodur VPR 1785 is unique in our range being able to form relatively flexible films without the use of epoxide resins.
Applications & Uses
- Applications
- Properties and Uses
Phenodur VPR 1785 is designed to be used as main binder in interior can coating systems, e. g. for 3-piece cans. In contrary to other resoles, Phenodur VPR 1785 shows a relatively high intrinsic flexibility. The product can be further flexibilized by combining it with high molecular weight epoxide resins or with saturated polyester resins, which may lead to systems which are completely free of Bisphenol A and free of the diglycidyl ether of Bisphenol A.
To improve the flexibility of such coatings, relatively small amounts of suitable high molecular weight polymers, like (poly) vinyl butyral (®Butvar) can be used. A ratio of 85 : 15 (PR : PVB) should be sufficient in most cases. The films show good adhesion and flow onto aluminum and tinplate, have a distinctive "golden" color and are good retort resistance in acidic media (e. g. 2 % lactic acid).
As sole binder or in combination with small amounts of high molecular weight polymers like (poly) vinyl butyral for interior can coating systems (e.g. for 3-piece cans). The resin/coating contains neither Bisphenol A nor the diglycidyl ether of Bisphenol A.
- Processing
Phenodur VPR 1785 is admixed with its partner resins at room temperature. The use of an acidic catalyst like Additol XK 406 (up to 5 % calc. on total solids) increases reactivity.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density (20°C) | approx. 1 | g/cm³ | — |
| Dynamic Viscosity | 50 - 700 | mPa.s | — |
| Non-Volatile Matter | 49 - 51 | % | — |
| Flash Point | 20 | °C | — |
Technical Details & Test Data
- Dilutabilty
Phenodur VPR 1785 is unlimited dilutable with alcohol's, ketones, glycol ether- and ester, limited soluble in aromatic hydrocarbons and not dilutable with aliphatic hydrocarbons.
- Compatibility
Phenodur VPR 1785 is compatible with high molecular weight polymers like (poly) vinyl butyral and in sensible ratios compatible with high moelcular weight epoxide and phenoxy resins.
- Stoving Conditions
For the usual very thin films in question for interior can-coating systems, a stoving cycle of 190 - 210 °C for 10 - 15 min. is sufficient. Coatings based on Phenodur VPR 1785 can also be "shock-cured", e. g. at 230 - 260 °C for one minute.
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Shelf Life
- 2 years
- Storage and Handling
At temperatures up to 25 °C storage stability packed in original containers amounts to at least 730 days.