Sharing a Success Story: The Successful Application of EN58A-NBMZ TPE Material in Safety Masks
Time of issue:2026-03-06
I. Project Background and Requirements
The customer, who specializes in safety face masks, is seeking a thermoplastic elastomer material suitable for the face-contact components. The key requirements include:
- Low odor (no noticeable odor after 24 hours of placement; minimal odor during the production process);
- Can bond PP;
- Comfortable to the touch (matte finish, dry and smooth feel);
- Solid color, opaque;
- Fast molding with excellent weather resistance and formability.
II. Material Selection and Preliminary Verification
- First attempt with ES60A-BW
- There are no issues with molding or demolding, but the product needs to be changed to a solid color, and the odor issue requires further optimization.
- Does not meet the requirements for “low odor” and “non-transparency.”
- Try EN58A-BW
- Severe watermarking and glue defects at the sprue location have occurred.
- The odor is quite strong and does not meet the customer’s odor standards.
- Optimized Version Comparison
- When comparing EN58A-NBMZ and EN58A-BW-2, the base colors of the two differ.
- EN58A-NBMZ was ultimately selected and, after color sampling verification, met the requirements.
III. Key Material Properties (EN58A- NBMZ )
IV. Import Process and Results
Through gradual optimization, EN58A-NBMZ successfully meets the following requirements:
- Low odor: The odor is significantly reduced both during production and after placement.
- Appearance and Feel: Achieves a matte, dry-to-the-touch finish with an even base color.
- Formability: Resolves issues of runner burn and watermarks, ensuring fast and stable molding.
- Adhesion: Good adhesion to PP substrates.
V. Case Summary
In this case, after multiple formulation adjustments and sample validations, the EN58A-NBMZ material was successfully developed and applied to safety masks. It met the customer’s stringent requirements in terms of low odor, aesthetic texture, molding efficiency, and bonding performance, demonstrating the feasibility of customized development of TPE materials for products that come into direct contact with the human body.
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ADD: Huangxi Industrial Park, Shiwan Town, Boluo County, Huizhou City, Guangdong Province，China