Home Thermoplastic elastomers Styrene-butadiene-styrene elastomer SBS KUMHO KTR 401

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Styrene-butadiene-styrene elastomer SBS KUMHO KTR 401

Description

SBS Kumho KTR 401 is a styrene-butadiene-styrene (SBS) thermoplastic elastomer with a radial (S-B) molecular structure. The material is used as a bitumen modifier and in the production of adhesives and footwear. It offers high strength, elasticity and stability, making it versatile for various industrial applications.

Advantages:

High strength
Elasticity
Resistance to environmental exposure
Non-oil-extended — rubber without added processing plasticizer oils, which gives more stable mechanical properties and broadens the range of applications
Good compatibility

Applications:

SBS Kumho KTR 401 is used across many industries thanks to its unique properties. The main application areas include:

Bitumen modifier: Improves the strength, elasticity and durability of bitumen mixes used in road construction and waterproofing.

Adhesives: Provides excellent adhesion and elasticity, which is important for industrial and construction adhesives.

Footwear: Used in the production of soles and other footwear components requiring high strength and flexibility.

Styrene-butadiene-styrene elastomer SBS KUMHO KTR 401

Property

Unit

Value

Typical properties:

Molecular structure

—

Radial (S-B)*

Bound polystyrene content

31.0

Volatile matter content

0.5

Ash content

0.08

Solution viscosity (5.23 % in toluene, 25 °C)

23.8 (ISO 3219)

Tensile strength

MPa

24.5 (ISO 37)

Elongation at break

700 (ISO 37)

Stress at 300 % elongation (M300)

MPa

3.0 (ISO 37)

Shore A hardness (15 s)

—

82 (ISO 868)

Melt flow rate (MFR, 200 °C / 5.0 kg)

g/10 min

≤1 (ISO 1133-1)

Density

g/cm³

0.94 (ISO 1183-1)

Extender oil content

Typical data for this polymer class, for reference.

The stated values are measured by internal test methods close to the corresponding ISO and GOST standards. The information is for reference only; we recommend using the technical data after agreement with the supplier and signing of a normative technical specification.