TPE Material Development Case: TA80A-WD-GJSB Applied in Tool Handles
Time of issue:2026-01-19
In the industrial manufacturing sector, the quality of tool handles directly affects the user’s operational experience and product durability, and the selection of rubber-coating materials is one of the key factors determining the performance of tool handles. Recently, through targeted material recommendations and repeated testing, we successfully helped a tool-handle customer overcome their rubber-coating challenges. The outstanding performance of the TA80A-WD-GJSB model TPE-modified material has been highly praised by the customer.
Material Property Analysis
TA80A-WD-GJSB is a TPE/TPU-modified material specifically designed for efficient molding and premium hand feel. Its core physical properties demonstrate significant advantages: a melt index as high as 36/5 kg·190℃ g/10 min, combined with injection-molding conditions at 200℃, enabling rapid mass production; a Shore A hardness of 79–81 and a tear strength of 40 kN/m, striking a balance between high hardness and high elasticity to ensure structural stability when holding the handle; a tensile strength of 8 MPa and an elongation at break of 600%, providing exceptional resistance to deformation; a specific gravity of 1.13 g/cm³, which strikes an ideal balance between lightweight design and superior texture; and excellent adhesion to base materials such as ABS, PC, and PA, opening up possibilities for diverse application scenarios.
Customer Requirements and Project Background
This customer specializes in the production of tool handles, and their products require overmolding with a rubber coating applied to PA fiber-reinforced substrates. The customer’s key requirements focus on two main points: First, the overmolding effect must be stable and reliable, ensuring that the outer layer of the handle is tightly bonded to the substrate and preventing any delamination during use; second, the material’s feel must be smooth and comfortable, enhancing the user’s experience during prolonged operation. Previously, the customer had tried various materials, but all fell short of expectations due to insufficient overmolding stability or a rough surface texture.
Material Import and Testing Process
In the early stage of the project, based on the customer’s requirement for encapsulation of PA fiber-reinforced substrates, we initially recommended the TA80C-01 material. Although this material met the required standards in terms of encapsulation compatibility, its relatively high cost prompted the customer—considering the economic feasibility of mass production—to seek a more cost-effective alternative.
Subsequently, we adjusted our recommendation strategy and provided the TA80AP material for testing. However, the test results showed that this material lacked sufficient adhesion to the PA fiber-reinforced substrate, resulting in minute gaps along the encapsulation edges. As a result, it failed to meet the customer’s stringent requirements for encapsulation performance, and the test was not passed.
After receiving feedback from two trial samples, the technical team re-examined the alignment between material properties and customer requirements, ultimately settling on the TA80A-WD-GJSB model. This material not only exhibits excellent compatibility with PA fiber-reinforced substrates but also boasts high fluidity, ensuring rapid mold filling during injection molding and minimizing bubbles and defects. Moreover, its hardness of 79–81A, combined with a specially formulated composition, gives the coated handle surface a delicate and smooth tactile feel. After the customer’s trial, the product’s coated edges showed no delamination or cracking, and the hand-feel tests received unanimous approval from the operators. As a result, it was confirmed that this material fully meets all production requirements.
Project Outcomes and Value
The successful introduction of TA80A-WD-GJSB has addressed two key pain points for our customer: First, its stable encapsulation performance has reduced the defect rate and enhanced production stability; second, its superior tactile feel has strengthened the product’s market competitiveness. Moreover, compared to the initially recommended TA80C-01, this material offers a significant cost advantage, enabling our customer to achieve both cost reduction and efficiency improvement. This case also underscores the application potential of TA80A-WD-GJSB in encapsulation fields such as tool handles, providing a reliable reference for material selection in similar products.
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ADD: Huangxi Industrial Park, Shiwan Town, Boluo County, Huizhou City, Guangdong Province，China