Custom Waterproof Design For Electric Toothbrushes

Noise & Waterproof

Noise & Waterproof

Aiwejay engineers low-noise and full-body waterproof electric toothbrush systems for demanding OEM/ODM projects. Our platform combines IPX7/IPX8 sealing, dual-seam waterproofing, co-injection molding, ultrasonic welding, breathable membranes, and suspended motor damping.

ADVANCED OEM SOLUTION

Sealed Quiet Platform

  • IPX7/IPX8 waterproofing
  • Dual-seam sealing
  • Low-noise motor design
  • Premium sealed structure
TRADITIONAL TECH

Basic Waterproof Design

  • Weak joint sealing
  • Water ingress risk
  • Sharp motor noise
  • Limited durability
Dual Seam Waterproofing
DUAL-SEAM

Dual-Seam Waterproofing

Aiwejay developed a patented dual-seam waterproof and vibration-damping structure to solve leakage risks under high-frequency sonic vibration. Even at 33,000 to 38,000 vibrations per minute, the structure helps protect key joints between the handle, internal transmission parts, and sealing components.

Waterproof Strength

  • Dual-seam structure
  • Vibration-damping seal
  • High-frequency protection
  • Long-term durability

Application Fit

  • Sonic toothbrushes
  • Metal handle models
  • Kids toothbrushes
  • Smart toothbrushes
Full Body Waterproof Design
IPX7 / IPX8

Full-Body Waterproof Design

Aiwejay supports full-body waterproof structures reaching IPX7 and industry-level IPX8 standards. This helps brands build safer bathroom-use products, travel toothbrushes, kids toothbrushes, UV sterilization sets, and smart oral care devices with sensors and wireless modules inside.

Waterproof Level

  • IPX7 full-body seal
  • IPX8 structure option
  • Bathroom-use ready
  • Travel-safe design

Device Protection

  • Sensor protection
  • Motor protection
  • Battery protection
  • Wireless module sealing
Advanced Co Injection Molding
CO-INJECTION

Advanced Co-Injection Molding

For premium metal-handle toothbrushes, Aiwejay uses high-pressure dual-shot co-injection molding. This process fuses anodized aluminum alloy and soft TPU rubber into a seamless waterproof joint, improving grip comfort while protecting the product from leakage under intense vibration.

Material Bonding

  • Aluminum + TPU
  • Seamless joint
  • High-pressure molding
  • Anti-slip surface

Premium Value

  • Luxury metal feel
  • Better waterproofing
  • Cleaner appearance
  • Higher product grade
Ultrasonic Welding Rigid Sealing
SEALED STRUCTURE

Ultrasonic Welding & Rigid Sealing

Aiwejay can use ultrasonic welding instead of adhesive bonding for critical structural joints. This creates a cleaner, stronger, and more stable seal, reducing glue aging risks and improving long-term waterproof reliability for electric toothbrushes and oral care devices.

Sealing Process

  • Ultrasonic welding
  • No glue aging
  • Rigid joint sealing
  • Cleaner assembly

Reliability Gains

  • Stronger structure
  • Stable waterproofing
  • Lower leakage risk
  • Longer product life
Waterproof Breathable Membrane
BREATHABLE MEMBRANE

Waterproof Breathable Membrane

For tightly sealed smart toothbrushes, Aiwejay can integrate waterproof breathable membranes. This helps balance internal and external pressure, release heat, and protect electronics from water ingress, especially in products with batteries, sensors, WiFi modules, and high-power motor systems.

Membrane Function

  • Pressure balancing
  • Heat release
  • Water blocking
  • Electronics protection

Smart Device Fit

  • WiFi toothbrushes
  • App-connected models
  • Sensor-based devices
  • High-power motors
Low Noise Dampening System
LOW NOISE

Low-Noise Dampening System

Aiwejay reduces sharp motor noise through suspended motor damping, internal vibration isolation, and acoustic path optimization. Depending on the model structure, product noise can be controlled below 60dB, below 50dB, or even around 45dB for ultra-quiet premium designs.

Noise Control

  • Suspended motor damping
  • Vibration isolation
  • Acoustic optimization
  • Quieter brushing

User Comfort

  • Below 60dB
  • 50dB model options
  • 45dB quiet design
  • Premium user feel
Fully Sealed Kids Design
NO OPENINGS

Fully Sealed Kids Design

For children’s toothbrush projects, Aiwejay can remove traditional speaker openings by using bone conduction audio. Voice guidance and music are transmitted through the teeth and jawbone, allowing the handle to remain fully sealed while reducing water, mold, and hygiene risks.

Sealed Audio

  • No speaker holes
  • Bone conduction audio
  • Fully sealed handle
  • Mold risk reduction

Kids Care Value

  • Better waterproofing
  • Safer bathroom use
  • Fun voice guidance
  • Cleaner structure