Knowde Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Technologies
Features & Benefits
- CASE Ingredients Features
- Distinguishing Features
Phenodur PR 516 is more reactive and lighter in color than Phenodur PR 217, PR 722, PR 723 and PR 897.
Phenodur PR 516 is comparable with Phenodur PR 515 but does not contain Bisphenol A as monomer.
Applications & Uses
- Applications
- Compatible Substrates & Surfaces
- Properties and Uses
Phenodur PR 516 has been preferably developed to be combined with high molecular weight epoxide resins, e.g. Beckopox EP 304, EP 307 and EP 309. Such combinations are suitable to formulate transparent, heat curing coatings for the interior coating of metal packaging goods like collapsible tubes, cans and containers for water, oils and food. Such coatings resist to a grat variety of acids, alkalines, organic solvents and food.
In combinations with epoxide resins excellent adhesion, hardness and flexibility. Very good resistance against chemicals, mineral oils and food. Coatings based on Phenodur PR 516 are preferably used for the interior coating of metal packaging goods.
- Processing
Phenodur PR 516 combinations with high molecular weight epoxide resins have to be stoved for 10 - 20 min. at 190 - 210 °C to be fully cured. Acidic catalysts, like Additol XK 406 (in amounts of 2 - 5 %, calculated on solid resin), may be used to reduce the temperature to 180 - 200 °C and may improve adhesion and hardness. In multiple layer coatings, the first coats are not subjected to the full cure, the coating system as a whole is completely cured only after the last coat has been applied. In case of surface defects, more likely with catalyzed systems, the additon of approximately 1 - 3 % of a melamine resin like Maprenal MF 800 acts as a excellent flow agent.
A precondensation between the phenolic and the epoxide resin at approximately 100 °C (under reflux) also improves the flow of the finished coating. The mixing ratio between Phenodur PR 516 and the epoxide resin should be between 1 : 2 and 1 : 4 (calculated as solid resins). The light color of the cured film can be tinted with a coloring resin like Phenodur PR 308, towards a "gold lacquer".
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Iodine Color Number | max.150 | — | — |
| Density (20°C) | approx. 1.03 | g/cm³ | — |
| Non-Volatile Matter | 58 - 62 | % | — |
| Dynamic Viscosity | 150 - 500 | mPa.s | — |
| Flash Point | 30 | °C | — |
Technical Details & Test Data
- Dilutability and Compatibility
Phenodur PR 516 is unlimited diluteable with alcohols, esters and ketones.
Phenodur PR 516 is limited diluteable with aromatic and aliphatic hydrocarbons. PR 516 is compatible with high molecular weight epoxide resins and poly vinyl butyrales.
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Shelf Life
- 1 year
- Storage and Handling
At temperatures up to 25 °C storage stability packed in original containers amounts to at least 365 days.