TOPSUN Foam Tape: Waterproof, Shock-Absorbent, And Strongly Adhesive

The rapid advancement and continuous innovation in electronic products are significantly reshaping our way of life. Today, users are looking beyond just aesthetics and functionality—they’re placing greater importance on quality and user experience. For high-tech devices such as smartphones and tablets, waterproof performance has become a critical feature, directly affecting their usability in humid conditions and influencing overall durability and lifespan.

The production of electronic devices involves a diverse array of materials and processes, with adhesive materials playing a vital role. In high-tech manufacturing, where internal structures are often intricate, specialized and multifunctional adhesives are crucial for both assembly precision and overall product quality. To meet growing market demands, TOPSUN has introduced a cost-effective solution: waterproof foam tape.

Benefits of Waterproof Foam Tape

Optimized Thickness and Enhanced Versatility

TOPSUN'swaterproof foam tape is available in a range of thicknesses to suit various application needs. This flexibility makes it ideal for everything from sealing narrow gaps to cushioning larger, shock-sensitive areas. Thinner foam layers deliver effective sealing with added flexibility, making them perfect for flat surfaces where a clean, low-profile finish is important. Thicker options offer superior cushioning and vibration resistance, ideal for high-impact or high-vibration environments.

Whether it's for home improvement, automotive sealing, or industrial equipment assembly, TOPSUN's wholesale waterproof foam tape provides customized thickness options to ensure optimal sealing and reliable protection.

Superior Waterproof Capability

Crafted from high-quality foam and durable acrylic adhesive, TOPSUN's waterproof foam tape offers outstanding resistance to moisture, maintaining reliable performance even in damp or harsh environments. Its low water absorption ensures long-term effectiveness, even with continuous exposure to humidity or changing weather conditions. Ideal for use in bathrooms, kitchens, outdoor settings, and automotive components, it provides lasting protection by effectively sealing out water, air, and dust.

This waterproof feature not only prolongs the product's lifespan but also safeguards internal components from water damage and corrosion, guaranteeing lasting reliability.

Outstanding Flexibility and Versatility

TOPSUN's waterproof foam tape is praised for its softness and flexibility, enabling it to easily conform to uneven and rough surfaces. With high elasticity, the foam effectively fills gaps and maintains firm contact even under pressure or vibration. This makes it especially ideal for use on irregular surfaces in automotive, electronics packaging, and architectural applications, providing durable and reliable sealing performance.

Composition of Waterproof Foam Tape

Acrylic Adhesive

Acrylic adhesive, a vital part of foam tape, provides a strong initial bond and outstanding resistance to weather conditions. It maintains consistent adhesion even in high humidity, low temperatures, or changing environments, ensuring long-lasting reliability across different surfaces.

Special Foam

The core of the waterproof foam tape is its specialized foam layer, usually made from high-density PU (polyurethane) or PE (polyethylene). These foams provide excellent compression and elasticity, delivering effective sealing and shock absorption. Their waterproof nature prevents the entry of moisture, air, and contaminants.

Acrylic Adhesive

Both sides of the foam core are coated with acrylic adhesive to boost bonding strength and ensure full surface contact. This double-sided design improves peel resistance and guarantees lasting, secure adhesion.

Liner

The liner—made of siliconized paper, PE film, or similar materials—protects the adhesive surface during storage and handling. It allows for easy removal when applying the tape and keeps the adhesive clean and effective.

Using TOPSUN's foam tape (waterproof) provides smartphones, tablets, and wearable devices with outstanding anti-peel performance, impact resistance, high adhesion, and stable weatherproof sealing. To meet the demands of slim designs, TOPSUN uses ultra-thin foam for excellent die-cutting capability—perfect for narrow bezels and precise applications.

The tape is ideal for bonding screens and covers of phones, tablets, and other electronic devices, as well as securing internal components.

Driven by innovative technology, unique processes, and lean manufacturing, TOPSUN continuously improves product consistency and performance.

With a customer-first mindset, TOPSUN is committed to providing manufacturers with more reliable assembly options and helping end-users experience the superior quality of modern electronic products.