A-6818
A-6818 plastic pellet impact modifier for PET / PBT
A-6818 is documented as white granule for PET / PBT. The source TDS lists 2-4% and positions the grade for impact, toughness, flexibility and low-temperature performance trials.

25 kg paper-poly pouch
Key values listed for A-6818
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Method |
|---|---|---|
| Listed dosage | 2-4% | — |
| Intrinsic viscosity | 0.935 ± 0.015 dl/g | ASTM D4603 |
| Colour Lb | >86 | — |
| Acid value | <=36 meq/kg | — |
| Melting point | 250 ± 3°C | — |
| Ash | 0.01-0.05% | — |
What this grade is positioned to support
- Impact and toughness modification
- Flexibility and crack-resistance support
- Controlled resin-specific evaluation
How to prepare the first evaluation
- 01
Blend A-6818 with the selected resin for 5-8 minutes.
- 02
Proceed by extrusion, injection molding or blow molding after uniform mixing.
- 03
Evaluate the target property on matched control and modified samples.
Current TDS and application guidance
Source file: 6818-tds.pdf. Use the same resin grade and processing conditions for control comparisons. Glass fibre, fillers and blend composition can change the result and must be evaluated separately.
