


Core Product Advantages
•Strong adhesion without delamination, excellent overmolding fit: Using polar modification process, SEBS graft-modified TPE substrate is selected, which has strong chemical affinity with PC, ABS, PC/ABS and other hard plastic substrates for speaker enclosures. Using the material solubility parameter matching principle, a true overmolding effect is achieved. The peel strength at room temperature can reach 5~10N/cm, achieving a firm bonding effect where "tearing the TPE does not cause debonding". It can withstand daily carrying, slight impacts, and changes in high and low temperature environments without delamination, peeling, or edge lifting, perfectly solving the industry pain point of weak adhesion and easy edge lifting of traditional overmolding materials for speaker enclosures, meeting the long-term use requirements of speaker enclosures. At the same time, it matches the thermal expansion coefficient of the substrate and TPE, with minimal reduction in bonding strength in environments of -40~120°C, offering outstanding stability, suitable for indoor, outdoor, vehicle and other multi-scenario use.
•Environmentally friendly, odorless, compliant with global standards: Adhering to the environmental R&D concept of the electronic acoustics industry, using halogen-free, non-toxic, low-VOC, odorless formula, free of heavy metals, phthalates, nonylphenol, polycyclic aromatic hydrocarbons (PAHs) and other harmful ingredients, no irritating odor, no migration, 100% recyclable, aligning with the sustainable development concept and green product requirements of the global electronic acoustics industry. It is an ideal material to replace traditional soft PVC. It has passed RoHS, REACH, FDA, UL and many other global authoritative environmental and electronic industry certifications, compliant for high-end scenarios such as home, vehicle, and portable speakers, meeting the core needs of compliant sales and export trade of speakers at home and abroad. It is a core raw material support for speaker brands to produce compliantly and seize the market.
•Vibration damping and noise reduction, aiding acoustic optimization: The formula is optimized for the sound-emitting characteristics of speakers, with excellent elastic buffering and vibration damping and noise reduction performance. It can effectively absorb resonance noise generated when the speaker is working, reduce sound wave reflection interference, and help improve the purity of the speaker sound quality, making the sound clearer and the bass more powerful. It can also be used as a raw material for anti-slip pads of speakers, buffering vibrations when placing the speaker, avoiding vibration transmission to the desktop to produce noise, balancing acoustic optimization and use stability, meeting the core needs of various sound-emitting speakers.
•Skin-friendly and wear-resistant, excellent texture: Shore hardness can be flexibly adjusted between 35~85A, providing a delicate, smooth, and skin-friendly touch for the speaker shell, no burrs, non-scratching, comparable to rubber paint texture, greatly improving the overall grade and holding experience of the speaker, solving the problems of stiff feel and easy scratching of traditional hard plastic shells. Excellent surface wear resistance, no obvious scratches or color fading after 50,000 friction tests, outstanding scratch and stain resistance, daily wiping can keep it clean, suitable for long-term carrying and frequent contact scenarios of speakers. It also has good UV resistance and weather resistance, no embrittlement or yellowing after long-term use.
•Insulating and anti-static, safer to use: Possesses excellent insulation performance and anti-static properties, can effectively isolate current, prevent the speaker shell from attracting dust and impurities due to static electricity, prevent static electricity from interfering with or damaging the internal electronic components of the speaker, ensuring the safety and stability of speaker use. Especially suitable for scenarios such as vehicle speakers and portable speakers that require contact with electronic components, meeting the safety standards of the electronic acoustics industry. At the same time, the material is lightweight, effectively reducing the overall weight of the speaker, aiding in lightweight design of speakers.
•Easy to process, cost-effective and worry-free: Excellent melt fluidity, strong compatibility with processing temperatures of PC, ABS and other substrates, can be formed by various processes such as secondary injection molding, two-color injection molding, and overmolding, without complex pretreatment or additional tackifiers. The processing cycle is 40% shorter than traditional rubber, no material accumulation, no flash, reducing waste. The raw material contains no moisture, can be directly used in production, and sprue material can be 100% recycled, greatly reducing production costs for manufacturers, suitable for large-scale, efficient production needs of speaker shells. It also has good colorability and surface gloss, can quickly achieve uniform coloring, and the molded surface is smooth and flawless without additional polishing treatment.
•Customizable appearance, suitable for diverse speaker designs: The appearance can be provided in various options such as natural, translucent, fully transparent, matte, frosted, etc., supporting custom colors on demand. It can achieve various appearance effects such as glossy, matte, and frosted. It can match the overall design style of various speakers, and can also enhance the appearance of speaker shells through color-contrast overmolding, transparent covering, etc., meeting the personalized, minimalist, and fashionable design needs of mid-to-high-end speakers, highlighting brand texture, helping speaker products enhance market competitiveness, suitable for diverse design needs of Bluetooth speakers, vehicle speakers, etc.
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data-lark-record-format="docx/record" class="lark-record-clipboard">
Performance Indicator | Test Standard | Typical Value |
Hardness (Shore A) | ASTM D2240 | 35~90(Customizable) |
Peel strength with PC/ABS | ASTM D1876 | 5~10N/cm |
Tensile strength | ASTM D412 | 4~10 MPa |
Elongation at break | ASTM D412 | 400%~750% |
Temperature range | GB/T 1634.2 | -40℃~90℃ |
Density | ASTM D792 | 1.02~1.24 g/cm³ |
Environmental Certification | RoHS, REACH, FDA, UL | Compliant |
Processing Method | Injection Molding, Two-shot Molding, Two-color Molding, Overmolding | Suitable |
Start your Thermoplastic elastomer project with our expert team. Get the fastest response — often within minutes.
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No. 2, Fourth Street, Shuju Second Industrial Zone, Changping Town, Dongguan City, Guangdong Province, China
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+86-769-82827851
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