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A-390
A-390 plastic brightener and flow modifier for General plastics
A-390 is documented as white powder for General plastics. The source TDS lists 0.4-0.8% for gloss; 0.6-2% for flow and positions the grade for dispersion, surface gloss and melt-flow adjustment.
25 kg paper-poly pouch or carton
TDS-derived technical profile
Key values listed for A-390
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Condition |
|---|---|---|
| Listed dosage | 0.4-0.8% for gloss; 0.6-2% for flow | — |
| Density | 0.920 g/cm3 | 20°C |
| Molecular weight | >100,000 | — |
| Moisture | <0.5% | — |
| Melting point | 150°C | — |
| pH | 6.8 | — |
What this grade is positioned to support
- Dispersion support
- Surface gloss improvement
- Melt-flow adjustment
How to prepare the first evaluation
- 01
Pre-wet the resin with white mineral oil where needed for uniform powder dispersion.
- 02
Add A-390 and mix for 8-10 minutes.
- 03
Proceed by extrusion, injection molding or blow molding and compare gloss and flow separately.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-390-tds.pdf. Select dosage by the intended gloss or flow target rather than using one level for both functions. Keep resin, pigment and processing conditions matched during comparison.