A-4398
Anti-yellowing powder for recycled transparent plastics
A light-yellow or white powder documented for trials intended to reduce yellowing in recycled transparent plastic formulations.

25 kg paper-poly pouch or carton
Key values listed for A-4398
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value |
|---|---|
| Density | 0.92 g/cm³ |
| pH | 6.78 |
| Molecular weight | 810 |
| Ash | <0.05% |
| Moisture | <0.5% |
| Melting point | 90-110°C |
What this grade is positioned to support
- Yellowing-control evaluation
- Recycled transparent-plastic processing
- Colour-retention screening
How to prepare the first evaluation
- 01
Pre-wet the resin with diffusion agent or white mineral oil.
- 02
Add A-4398 and mix for 8-10 minutes.
- 03
Dry the blend before extrusion, injection molding or blow molding.
Current TDS and application guidance
Source file: a-4398-tds.pdf. Use a matched unmodified recycled-resin control. Measure colour change after the intended heat history and ageing cycle.
