Get Technical Advice
Back to Plastic pellet impact modifierPlastic pellet impact modifier
A-658
A-658 plastic pellet impact modifier for TPR / TPV / EPS / HIPS / GPPS / PMMA / Bitumen
A-658 is documented as form not stated in source tds for TPR / TPV / EPS / HIPS / GPPS / PMMA / Bitumen. The source TDS lists 2-4% and positions the grade for impact, toughness, flexibility and low-temperature performance trials.
25 kg paper-poly pouch
TDS-derived technical profile
Key values listed for A-658
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value |
|---|---|
| Listed dosage | 2-4% |
| Effective substance content | 100% |
| Shore D hardness | 75 |
| Vicat softening temperature | 89°C |
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-658 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.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-658-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.