Kraton SEBS MD-1648 Elastomer Plastic Raw Material

In the field of high-performance elastomer materials, Kraton SEBS MD-1648 is a premium-grade material widely used in automotive, electronics, and consumer goods industries. As a high-quality SEBS (Styrene-Ethylene-Butylene-Styrene) thermoplastic elastomer, it combines the flexibility of rubber with the processability of plastics, making it an essential material in modern manufacturing.

One-sentence definition:
Kraton SEBS MD-1648 is a high-performance hydrogenated styrenic block copolymer elastomer designed for modification, compounding, and injection molding applications.

Key Selling Points:

• Excellent flexibility and resilience: Provides superior rubber-like feel and long-term durability
• Outstanding weather resistance and aging performance: Suitable for outdoor and harsh environments
• Good processability and compatibility: Ideal for blending with PP, PE, and other materials

Brand Endorsement:
This product is professionally supplied by ZiJun Plastics, a trusted global supplier of plastic raw materials, offering stable supply, technical support, and customized solutions.

Technical Data Sheet (TDS)

Property	Value	Test Method	Test Condition
Density	0.91 g/cm³	ASTM D792	23°C
Melt Flow Rate (MFR)	5 g/10min	ASTM D1238	230°C / 2.16 kg
Tensile Strength	12 MPa	ASTM D412	Standard environment
Elongation at Break	500%	ASTM D412	Standard environment
Notched Izod Impact	No Break	ASTM D256	23°C
Heat Deflection Temperature (HDT)	75°C	ASTM D648	0.45 MPa

Note:
The above data are typical values and may vary depending on processing conditions and formulations.

Key Applications

Kraton SEBS MD-1648 is widely used across multiple high-end industries due to its excellent elasticity and processing performance:

1. Automotive

• Automotive sealing strips and door/window sealing systems
• Soft-touch dashboard materials
• Wire harness sheathing and vibration damping components
  Advantage: Excellent weather resistance and UV stability

2. Electronics

• Cable sheathing and wire insulation
• Plug overmolding applications
  Advantage: Good electrical insulation and flexibility

3. Consumer Goods

• Tool handles (e.g., screwdrivers, anti-slip grips)
• Sports equipment and daily-use soft components
  Advantage: Comfortable touch and anti-slip performance

4. Medical & Packaging

• Medical tubing (PVC alternative)
• Food-contact elastic materials
  Advantage: Environmentally friendly and non-toxic

Product Comparison

SEBS vs SBS

Comparison Dimension	SEBS (MD-1648)	SBS
Aging Resistance	Excellent (hydrogenated structure)	Poor
Weather Resistance	Excellent	Easy to oxidize
Cost	Higher	Lower
Service Life	Long	Short

Conclusion: SEBS is more suitable for high-end applications requiring durability.

SEBS vs PVC

Comparison Dimension	SEBS	PVC
Environmental Performance	Halogen-free, eco-friendly	Contains chlorine
Flexibility	Excellent	Requires plasticizers
Processability	Easy to process	Moderate stability
Safety	High	Potential migration risk

Conclusion: SEBS is an ideal environmentally friendly alternative to PVC.

Processing Guidelines

To achieve optimal performance of Kraton SEBS MD-1648, the following processing parameters are recommended:

Injection Molding

• Drying Temperature: 60–80°C (2–3 hours, depending on humidity)
• Processing Temperature: 180–230°C
• Mold Temperature: 20–50°C
• Injection Pressure: 60–100 MPa

Extrusion

• Processing Temperature: 170–220°C
• Screw Speed: 30–80 rpm

Professional Tips

• Use a dehumidifying dryer to ensure stable moisture content
• Can be blended with PP to improve rigidity and heat resistance
• Avoid prolonged high-temperature residence time to prevent degradation

FAQ

1. Can Kraton SEBS MD-1648 replace PVC?

Yes. In many flexible applications such as cable sheathing and medical tubing, SEBS can serve as an environmentally friendly alternative without plasticizer migration issues.

2. Is SEBS MD-1648 suitable for outdoor use?

Yes. Its hydrogenated structure provides excellent UV and oxidation resistance, making it ideal for long-term outdoor applications.

3. Can it be blended with PP or PE?

Yes. SEBS has excellent compatibility with polyolefins such as PP and PE, and is widely used for material modification.

4. Is drying required before processing?

Light drying is recommended, especially in high-humidity environments, to ensure stable processing and product quality.

If you are looking for a high-performance, eco-friendly, and easy-to-process elastomer material, Kraton SEBS MD-1648 is an excellent choice.
ZiJun Plastics is ready to provide reliable supply and professional technical support to help you stay competitive in the market.