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A-280
Halogen-free V-0 formulation direction for transparent PC
A white intumescent powder developed for clear PC projects that need a flame-retardant route while preserving transparency and avoiding yellow or grey appearance changes.
25 kg plastic woven bag
TDS-derived technical profile
Key values listed for A-280
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 | 1% | — |
| Oxygen index | 35 | — |
| Sample thickness | 1.6 mm | — |
| Dripping statement | No flaming dripping particles | — |
| Halogen statement | Non-halogen | — |
| Extinguishing statement | Within 3 seconds | Source TDS statement |
What this grade is positioned to support
- Clear PC 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.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-280-tds.pdf. The UL94 wording is a TDS-listed formulation direction, not a certification guarantee. Final performance depends on formulation, thickness and test evidence.