Get Technical Advice
Back to Transparent impact modifierTransparent impact modifier
A-866
Core-shell transparent impact modifier for PMMA
A core-shell granule for PMMA trials that combines optical-property targets with impact, flexibility, viscosity and weatherability support.
25 kg paper-poly pouch
TDS-derived technical profile
Key values listed for A-866
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Method | Condition |
|---|---|---|---|
| Water absorption | 0.3% | ISO 62 | 24 h |
| Melt flow rate | 1.0 g/10 min | ISO 1133 | 230°C / 37.3 N |
| Specific gravity | 1.2 g/cm³ | ISO 1183 | — |
| Transmissivity | 93% | ISO 13468-1 | 3 mm |
| Haze | 0.3% | ISO 14782 | 3 mm |
| Refractive index | 1.49 | ISO 489 | — |
| Izod impact strength | 3.9 kJ/m² | JIS K-7110 | — |
| Unnotched Charpy impact | 68 kJ/m² | JIS K-7111 | 1eU |
| V-notched Charpy impact | 4.3 kJ/m² | JIS K-7111 | 1eA |
What this grade is positioned to support
- PMMA impact and toughness evaluation
- Clarity-conscious formulation comparison
- Controlled small-batch processing trial
How to prepare the first evaluation
- 01
Blend the grade with PMMA resin for 5–8 minutes before processing.
- 02
Keep the base resin, thickness and processing conditions consistent between comparison samples.
- 03
Evaluate the stabilized molded result after at least 24 hours.
Why this model is a separate evaluation route
A-866 is the PMMA core-shell route and has the most complete optical test set in this batch: 93% transmissivity, 0.3% haze and a 1.49 refractive index, with the first two values reported at 3 mm thickness.
What the source document does not establish
- The optical values are PMMA data and must not be applied to another resin family.
- The 93% transmissivity and 0.3% haze values use a 3 mm specimen; thickness and molding conditions can change the result.
- Run a controlled small-batch trial and compare the stabilized part after at least 24 hours.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-866-tds.pdf. Optical and mechanical results depend on the base resin, dosage, thickness and processing conditions. Confirm the current specification before scale-up.