A-P19
Halogen-free intumescent flame-retardant grade for PP and HDPE
A TDS-documented white granule for homopolymer and copolymer PP, plus HDPE. The source TDS describes a phosphate-and-nitrogen, non-halogen intumescent formulation and separate listed evaluation ranges by resin.

25 kg plastic compound bag
Key values listed for A-P19
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Condition |
|---|---|---|
| TDS flame classification | UL94 V-0 direction | — |
| Listed dosage | PP 25–35%; HDPE 35–50% | — |
| Sample thickness | 3.2 mm | HDPE comparison in source TDS |
| Dripping statement | No flaming dripping particles | — |
| Halogen statement | Non-halogen | — |
| Molding temperature | Above 220 °C stated heat stability | Source TDS statement |
What this grade is positioned to support
- PP / HDPE halogen-free flame-retardant evaluation
- Flame performance and appearance comparison
- Controlled dosage and thickness verification
How to prepare the first evaluation
- 01
Pre-dry the resin and additive for 2 hours before the first evaluation.
- 02
Start within the dosage listed in the TDS and prepare a controlled comparison sample.
- 03
Recheck flame behaviour after any change to resin, filler, colour or sample thickness.
Current TDS and application guidance
Source file: a-p19-tds.pdf. The UL94 wording is a TDS-listed formulation direction, not a certification guarantee. Final performance depends on formulation, thickness and test evidence.
