Product Details:

1. Introduction:

SBS modifier is a thermoplastic elastomer widely used to enhance the performance of bitumen in waterproofing and industrial applications. By incorporating Styrene-Butadiene-Styrene (SBS) into bitumen, it improves elasticity, high-temperature stability, and overall mechanical strength, making it ideal for high-performance waterproof membranes, roof coatings, and bridge deck protection.

2. Features and Benefits:

Elasticity Improvement: SBS significantly enhances the elasticity and flexibility of bitumen, especially under low-temperature conditions, reducing cracking.

Thermal Stability: Increases the softening point of bitumen, improving its resistance to deformation under high temperatures.

Durability: Modified bitumen exhibits improved aging resistance and longer service life.

Compatibility: Compatible with various types of base bitumen; suitable for batch and continuous modification processes.

Ease of Processing: Can be easily dispersed in bitumen at elevated temperatures using standard mixing equipment.

3. Technical Specifications:

Appearance: White to light yellow granular or pellet form

Styrene Content: 28%–30%

Volatile Content: ≤1.0%

Tensile Strength: ≥5.0 MPa

Elongation at Break: ≥500%

Melt Flow Rate: ≤1.0 g/10min (200°C, 5kg)

Softening Point of Modified Bitumen: ≥85°C (depending on formulation)

Dosage (in bitumen): 3%–6% (typical)

4. Usage Instructions:

Heating: Heat base bitumen to 170–180°C before adding the SBS modifier.

Mixing: Add SBS gradually under high shear mixing. Mix for 2–3 hours until uniformly dispersed.

Stabilization: Optionally add a stabilizer (e.g., sulfur or polyphosphoric acid) to prevent phase separation and improve storage stability.

Adjustment: Final properties can be tuned by adjusting SBS content and blending time.

5. Application Scenarios:

SBS modifier is widely used in:

Waterproof Membranes: Enhances tensile strength and elongation for roofing and foundation membranes.

Bituminous Coatings: Applied in waterproof coatings for basements, tunnels, and bridge decks.

Sealants and Mastics: Improves flexibility and adhesion.

Bridge and Road Construction: Suitable for stress-absorbing layers in expansion joints and waterproofing of bridge decks.

6. Storage:

Packaging Specifications: 25 kg kraft paper bag with inner PE lining.

Storage Conditions: Store in a cool, dry, and well-ventilated area, away from direct sunlight and high heat.

Shelf Life: 12 months in unopened packaging under standard storage conditions.

7. Summary:

SBS modifier is an essential additive for enhancing the performance of bitumen in waterproofing, construction, and industrial applications. It provides excellent elasticity, thermal resistance, and mechanical properties, making modified bitumen more durable and effective in demanding environments. With wide applicability and easy integration, SBS modifier is a trusted choice for high-quality bitumen formulations.

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