Views: 1029 Author: Sally Lyu Publish Time: 2026-04-07 Origin: Site
SBS YH-791E, YH-792E and YH-796E are all linear styrene-butadiene-styrene block copolymers. They are widely used in adhesives, polymer modification and bitumen applications. The main difference between these three grades is their styrene content, which leads to different balances of hardness, flexibility and processing behavior.
In general, YH-792E offers higher hardness and stronger rigidity, making it a suitable choice for applications that require better strength and structural support. YH-796E provides better softness and flexibility, which makes it more suitable for products that need higher elasticity. YH-791E stands in the middle and is often chosen as a balanced grade for a wide range of formulations.
When these grades are used in combination, the purpose is usually to achieve a better balance between stiffness, elasticity and workability. In many formulations, YH-791E can be used as the base grade, while YH-792E can be added to improve strength and high-temperature performance, or YH-796E can be added to improve softness and flexibility.
For adhesive applications, combining different SBS grades can help adjust cohesion, tack and overall handling properties. For bitumen and waterproofing systems, blending these grades can support a better balance between high-temperature stability and low-temperature flexibility. In plastic modification, the right combination can also help improve impact resistance and overall mechanical performance.
In practice, there is no single formula that fits every application. The best ratio depends on the specific product, processing conditions and target performance. A practical approach is to start with a balanced grade and then make small adjustments according to real testing results.
At TOLL, we believe that selecting the right SBS grade is not only about product data, but also about matching the material to the real application. If you are working on adhesives, waterproofing membranes or polymer modification, choosing the right combination of SBS grades can help you achieve more stable and competitive results.
