TPE Raw Material for Speaker Enclosures

Core Product Advantages

•Strong adhesion without delamination, excellent overmolding compatibility: Using polar modification technology, SEBS-grafted modified TPE substrate is selected, which has extremely strong chemical affinity with hard plastic substrates such as PC, ABS, PC/ABS for speaker housings. By leveraging the material solubility parameter matching principle, a true overmolding effect is achieved, with peel strength at room temperature reaching 5~10N/cm, delivering a firm bond where "TPE does not detach when peeled." It withstands daily carrying, minor impacts, and high-low temperature variations without delamination, detachment, or edge lifting, perfectly solving the industry pain points of weak adhesion and easy edge lifting in traditional speaker housing overmolding materials, and adapting to long-term use requirements of speaker housings. Additionally, the thermal expansion coefficients of the substrate and TPE are matched, with minimal reduction in bond strength at -40~120℃, offering outstanding stability suitable for indoor, outdoor, and in-vehicle applications.

•Eco-friendly and odorless, compliant with global standards: Adhering to the environmental R&D philosophy of the electronic acoustics industry, the formulation is halogen-free, non-toxic, low-VOC, and odorless, containing no harmful components such as heavy metals, phthalates, nonylphenol, or polycyclic aromatic hydrocarbons (PAHs). It has no irritating odors, no exudation, and is 100% recyclable, aligning with global sustainable development concepts and green product requirements for the electronic acoustics industry, making it an ideal replacement for traditional soft PVC. It has passed multiple global authoritative environmental and electronics certifications including RoHS, REACH, FDA, and UL, and is compliant for high-end applications such as home, in-vehicle, and portable speakers, meeting core requirements for compliant sales and export trade of speakers domestically and internationally. It serves as the core raw material support for speaker brands to achieve compliant production and capture market share.

•Vibration damping and noise reduction, supporting acoustic optimization: The formulation is optimized for speaker sound characteristics, offering excellent elastic cushioning and vibration damping and noise reduction performance. It effectively absorbs resonance noise generated during speaker operation, reduces sound wave reflection interference, and helps enhance the purity of speaker sound quality, making audio clearer and bass more robust. It can also serve as raw material for anti-slip speaker feet, cushioning vibrations when the speaker is placed, preventing vibration transmission to the desktop that could cause unwanted noise, balancing acoustic optimization and usage stability, and meeting the core needs of various sound-emitting speakers.

•Skin-friendly and wear-resistant, with outstanding texture: Shore hardness can be flexibly adjusted between 35 and 85A, giving the speaker shell a delicate, smooth, skin-friendly touch. It is burr-free and non-scratching, comparable to rubber paint texture, greatly enhancing the overall grade and grip experience of the speaker, solving the problems of stiff feel and easy scratching of traditional hard plastic shells. The surface has excellent wear resistance, showing no obvious scratches or color fading after 50,000 friction tests. It has outstanding scratch and stain resistance, and daily wiping keeps it clean, suitable for long-term carrying and frequent contact scenarios of speakers. It also has good UV resistance and weather resistance, without becoming brittle or yellowing over long-term use.

•Insulating and anti-static, safer to use: It has excellent insulating performance and anti-static properties, effectively isolating electric current, preventing the speaker shell from attracting dust and impurities due to static electricity, and preventing static from interfering with or damaging the internal electronic components of the speaker, ensuring safe and stable use. It is especially suitable for scenarios involving contact with electronic components, such as car speakers and portable speakers, and meets safety standards of the electronic acoustics industry. The material is also lightweight, effectively reducing the overall weight of the speaker and supporting lightweight design.

•Easy to process, cost-effective and worry-free: It has excellent melt flow, with strong compatibility with processing temperatures of substrates such as PC and ABS. It can be formed through various processes including secondary injection molding, two-color injection molding, and overmolding, without complex pretreatment or additional tackifiers. The processing cycle is 40% shorter than traditional rubber, with no material buildup or flash, reducing waste. The raw material is moisture-free and can be directly put into production, and sprue material can be 100% recycled and reused, greatly reducing manufacturer production costs. It is suitable for large-scale, efficient production of speaker shells, and has good colorability and surface gloss, allowing rapid uniform coloring. After molding, the surface is smooth and flawless, requiring no additional polishing.

•Customizable appearance, suitable for diverse speaker designs: The appearance offers multiple options such as natural color, translucent, fully transparent, matte, and frosted, with support for customizing any color on demand, achieving various visual effects like glossy and matte mist finishes. It can match the overall design style of various speakers, and can enhance the appearance of speaker shells through contrasting edge wrapping or transparent overmolding, meeting the personalized, minimalist, and fashionable design needs of mid-to-high-end speakers, showcasing brand quality and boosting market competitiveness of speaker products. It is suitable for diverse design needs of Bluetooth speakers, car speakers, and more.