A-683
Organic light-diffusion powder for transparent plastics
An organic powder documented for PC, PMMA, PS, PP and PET optical parts where LED hiding, diffusion, haze and light transmission must be balanced.

20 kg carton
Key values listed for A-683
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Condition |
|---|---|---|
| Heat resistance | 470°C | Source TDS statement |
| Light transmittance | 30-80% | 1.2 cm diffusion plate reference |
| Haze | Around 89.2% | 1.2 cm diffusion plate reference |
| Light transmittance | Up to 93% | Extrusion reference in source TDS |
What this grade is positioned to support
- Point-light-source hiding
- Light diffusion and haze adjustment
- Transmission-conscious optical trials
How to prepare the first evaluation
- 01
Set the target luminance, haze and LED-to-cover distance before dosing.
- 02
Pre-wet the resin for dispersion and mix for 5-8 minutes.
- 03
Proceed by injection molding or extrusion after uniform mixing.
Current TDS and application guidance
Source file: a-683-tds.pdf. Optical values are application examples, not universal guarantees. Validate colour, dark points, haze and transmission on the actual thickness and geometry.
