High Performance MBS Impact Modifier from China Suppliers - Enhance PVC Strength | Factory Direct
Product Characteristics
1. Impact Modifier MBS
Impact resistant MBS resin is mainly used in the PVC processing and forming process to improve its impact strength without damaging the inherent characteristics of PVC. Due to its similar solubility parameters to PVC, the two have good thermodynamic compatibility, manifested as PVC having high impact strength, temperature resistance, and coloring properties at room or low temperatures.
2. Transparent Modifier MBS
Transparent MBS resin is mainly used in the processing and forming of transparent PVC products, to improve their impact strength without damaging the inherent characteristics of transparent PVC products. Its refractive index is similar to PVC, and using MBS as a PVC impact modifier will not affect the transparency of PVC. It is the best material for improving the impact resistance of PVC and manufacturing transparent products.
Compared with other companies, our MBS has higher impact resistance, better compatibility, and wear resistance.
Products Specification
| Indicator/Product Brand | BLD-56 (561/562/564) | BLD-518/528/568 |
|---|---|---|
| Appearance | Free flowing white powder | Free flowing white powder |
| Particle size (30 target sieve pass rate %) | ≥98 | ≥98 |
| Volatile matter (%) | ≤1.0 | ≤1.0 |
| Apparent density (g/cm³) | 0.25-0.50 | 0.25-0.60 |
| Glass transition temperature (°C) | -72.5±1.0 | -62.5±1.0 |
Frequently Asked Questions
What is the primary function of the MBS impact modifier in PVC processing?
The MBS impact modifier is primarily used in PVC processing to significantly improve the impact strength of the material. It achieves this without damaging the inherent physical and chemical characteristics of the PVC.
Will using the MBS transparent modifier affect the clarity of PVC products?
No, it will not. The transparent MBS modifier has a refractive index very similar to PVC, meaning it increases impact resistance while fully preserving the transparency of the final PVC product.
How does your MBS product compare to competitors?
Our MBS resin is engineered to offer superior impact resistance, enhanced thermodynamic compatibility with PVC, and improved wear resistance compared to standard market alternatives.
What is the physical form of the BLD-56 and BLD-518 MBS series?
Both the BLD-56 (561/562/564) and BLD-518/528/568 series are supplied as a free-flowing white powder with a particle size pass rate of ≥98% through a 30 target sieve.
What are the glass transition temperatures for the different MBS grades?
The glass transition temperature for the BLD-56 series is -72.5±1.0°C, whereas the BLD-518/528/568 series features a glass transition temperature of -62.5±1.0°C.

