Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Kraton FG1901GT SEBS Elastomer

Kraton FG1901GT is a high-performance SEBS elastomer from Kraton’s FG Series, offering exceptional melt stability, clarity, and soft-touch feel. Ideal for medical devices, consumer goods, and soft-touch overmolding, it delivers superior elasticity, low compression set, and excellent processability via extrusion or injection molding. Compliant with USP Class VI and ISO 10993, it ensures biocompatibility and regulatory readiness.
  • kraton fg1901gt sebs elastomer_67b526a3
  • kraton fg1901gt sebs elastomer_67b526a3

Features Of Kraton FG1901GT SEBS Elastomer

  1. Highly balanced melt processability for efficient extrusion and injection molding.

  2. Excellent soft-touch feel and low compression set for premium tactile performance.

  3. Superior UV and thermal stability versus conventional SEBS grades.

  4. Good compatibility with polypropylene (PP) and thermoplastic polyolefins (TPOs) for alloy formulations.

  5. Low extractables and compliant with FDA 21 CFR §177.2600 for food-contact applications.

Typical Applications Of Kraton FG1901GT SEBS Elastomer

  1. Soft-grip overmolding for power tools, hand tools, and consumer electronics.

  2. Automotive interior trim components including door panels, armrests, and instrument bezels.

  3. Medical device housings and ergonomic grips requiring biocompatibility and skin-safe formulation.

  4. Packaging closures and dispensing systems where flexibility and seal integrity are critical.

  5. Personal care product casings (e.g., electric toothbrushes, shavers) demanding durability and comfort.

Specifications Of Kraton FG1901GT SEBS Elastomer

Chemical TypeStyrene–ethylene/butylene–styrene (SEBS) triblock copolymer
Product FormPellets
AppearanceOff-white to light tan, free-flowing pellets
Primary ApplicationsThermoplastic elastomer (TPE) overmolding, soft-touch compounds
Key FeaturesHigh elasticity, low hardness (Shore A ~35–45), excellent flow
BenefitsReduced cycle times, improved part aesthetics, enhanced grip performance
Regulatory ComplianceFDA 21 CFR §177.2600; meets UL 94 HB flammability rating
Processing MethodExtrusion, injection molding, two-shot molding


Kraton FG1901GT SEBS Elastomer – Frequently Asked Questions (FAQ)

Q1: What is the primary function of Kraton FG1901GT in thermoplastic elastomer (TPE) formulations?

A: Kraton FG1901GT is a selectively hydrogenated styrenic block copolymer (SEBS) designed to serve as a soft-phase modifier and compatibilizer in TPE blends—enhancing melt processability, improving tensile resilience, and contributing to balanced hardness and elasticity without sacrificing thermal stability.


Q2: Is Kraton FG1901GT suitable for medical or food-contact applications?

A: Kraton FG1901GT is manufactured under stringent quality controls and is commonly selected for applications requiring regulatory compliance, including certain medical device components and food-contact packaging. Final suitability depends on full formulation evaluation and end-use regulatory validation by the customer.


Q3: How does Kraton FG1901GT differ from standard SBS or non-hydrogenated styrenic elastomers?

A: Unlike conventional SBS, the selective hydrogenation in FG1901GT significantly improves oxidative and UV stability, reduces permanent set, and enhances long-term mechanical retention—making it preferred for demanding applications where aging resistance and consistent performance are critical.


Q4: What types of polymers or resins is Kraton FG1901GT typically blended with?

A: FG1901GT is widely used in blends with polypropylene (PP), polyethylene (PE), and rigid styrenics to formulate soft-touch overmolds and flexible compounds. It also functions effectively as a compatibilizer in polyolefin-based thermoplastic vulcanizates (TPVs) and polymer alloys requiring phase stabilization.


Q5: What processing methods are recommended for Kraton FG1901GT-containing compounds?

A: Compounds containing FG1901GT are readily processed via standard thermoplastic techniques—including injection molding, extrusion, and two-shot molding—with good melt flow and minimal thermal degradation when processed within typical SEBS temperature windows.



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