Scope of Application: Smartphones, tablets, wearables, AR/VR, drones, smart speakers, IoT terminals, TWS earbuds, and smart home terminals
1. Smart Electronics Industry Overview
1.1 Smart Electronics Industry Development Trends
The global smart electronics market continues its rapid growth. In 2026, worldwide smartphone shipments exceeded 1.4 billion units, wearables surpassed 500 million units, TWS earbuds exceeded 400 million pairs, and AR/VR devices are accelerating penetration into the consumer market. Smart terminal products keep evolving toward thinner/lighter designs, higher performance, water and dust resistance, and multi-function integration, placing higher demands on key materials such as thermal interface, protection, and sealing.
Electronic silicone materials are used throughout smart electronics—from chip cooling, camera-module protection, and FPC reinforcement to structural sealing, water/dust resistance, and acoustic sealing. With their low modulus, aging resistance, biocompatibility, and processing flexibility, silicones have become indispensable functional materials in consumer electronics.
1.2 Core Value of Electronic Silicone in Smart Electronics
Value Dimension
Specific Application
Result
Chip Cooling
CPU/GPU/PMIC heat conduction
Reduce temperature rise by 15–30℃; sustain full-frame operation without throttling
Camera Protection
Camera-module sealing and fixation
Dust-proof, anti-shake; 1,000,000 autofocus cycles
Waterproof Sealing
Full device / IP68 waterproofing
Waterproof depth 1.5 m / 30 min; Cpk ≥ 1.67
FPC Reinforcement
Foldable-screen / connector reinforcement
200,000 bends without fracture
Acoustic Sealing
Speaker / microphone sealing
Meets airtightness; low-frequency improved by 3 dB
Cushioning Protection
Drop cushioning, sensor filling
1.5 m, 26-face drop pass rate >95%
1.3 Smart Electronics Classification and Silicone Requirement Mapping
Smartphone: chip cooling (TC series) -> camera sealing (SE series) -> full-device waterproofing (SS series) -> FPC/connector reinforcement (IC series). Wearable (watch/band): main-board cooling (TC series) -> heart-rate sensor optical sealing -> full-device waterproofing (SS series) -> strap/button. TWS earbuds: chip cooling (TC series) -> speaker acoustic sealing (AC series) -> charging-case sealing (SS series) -> button. AR/VR device: AP/display-driver cooling (TC series) -> optical-module sealing -> eye-tracking protection -> housing sealing. Drone: VESC/motor cooling (TC series) -> flight-control board conformal coating (PC series) -> camera gimbal sealing (SS series). Smart speaker/home: amplifier cooling (TC series) -> pickup-microphone sealing (AC series) -> full-device sealing (SS series). IoT module: RF PA cooling (TC series) -> antenna-module potting -> full-device waterproofing
2. Product Portfolio Overview

Figure 2-1 Smart Electronics Silicone System Architecture Diagram
2.1 Core Product Series
Product Series
Product Name
Typical Model
Key Features
Ultra-High-Thermal-Conductivity Grease
Chip-level cooling
MT-3203/3207
Thermal conductivity 3.0–8.0 W/m·K; ultra-thin coating 30 μm
Thermal Gel
Automated dispensing cooling
MT-4203
Thermal conductivity 3.0 W/m·K; automated dispensing; pre-cured
Waterproof Sealant
Full-device IP68 sealing
MT-705A
IP68; low VOC; mold class 0; medical grade optional
Optical Sealant
Camera / sensor sealing
MT-705B
Optical clarity >95%; low shrinkage; UV resistant
Acoustic Sealant
Speaker / microphone sealing
Acoustic airtight; adjustable damping; low volatility
FPC Reinforcement Adhesive
Foldable-screen reinforcement
High flexibility, 200,000 bends; low modulus
Optical Bonding Liquid Adhesive
Screen OCA bonding
Full lamination; optically clear; low yellowing
2.2 Product Technical Advantages
8.0 W/m·K ultra-high-conductivity grease: developed for flagship phone AP/GPU; 30 μm ultra-thin film coating
IP68 waterproof sealant: low VOC, compliant with RoHS/REACH; medical grade available
Optically clear sealing: light transmittance >95%, low shrinkage <0.5%; dedicated to camera modules
FPC reinforcement 200,000 bends: matches foldable/flexible-screen bend life
Automated-dispensing gel: pre-cured / thixotropic design; suited to high-speed dispensing lines
3. Smartphone Application Solutions

Figure 3-1 Thermal Grease Application Diagram: cooling-structure cross-section, precision dispensing process, cooling-effect comparison

Figure 3-2 Waterproof Sealant Application Diagram: screen-bezel sealing, button-sealing structure, IP68 waterproofing test data
3.1 Chip Cooling Solution
Application location: between AP/SoC, GPU, PMIC, charging IC and the shield can / vapor chamber. Recommended products: MT-3207 (8.0 W/m·K) + MT-4203 (gel filling)
Parameter
MT-3207
MT-4203
Thermal Conductivity
8.5 W/m*K
3.0 W/m*K
Coating Thickness
30~50um
100~500um
Application Method
Precision printing / dispensing
Automated dispensing / micro-needle
Application Scenario
CPU/GPU core
Multi-chip / large-tolerance gap
Smartphone cooling design trend: vapor chamber (VC) + grease combination, where grease serves as the interface between VC and shield can; chip gap tolerance ±0.1 mm, MT-3207 ultra-thin coating reduces thermal resistance; thermal gel fills the large gap (100–300 μm) between VC and mid-frame; total heat source ranges from 5 W (mid-range) to 15 W+ (gaming flagship)
3.2 Camera Module Sealing Solution
Application location: between camera-module bracket and mid-frame, and inside the lens module. Recommended product: MT-705B optical sealant
Location
Function
MT-705B
Lens-module base sealing
Dust-proof and anti-shake
Low shrinkage <0.5%; no axis deviation
OIS anti-shake bonding
VCM spring fixation
Impact resistance 10000 G; no displacement
Sensor cover-plate bonding
IR filter bonding
Optical clarity >95%; bubble-free
Camera decorative-ring fixation
Appearance sealing
UV resistant 2000 h; no yellowing
3.3 Full-Device IP68 Waterproofing Solution
Application location: mid-frame to screen joint, charging port, SIM tray, buttons, earpiece mesh. Recommended product: MT-705A waterproof sealant
Waterproof Location
Process
Requirement
Screen-bezel dispensing
Narrow-bezel 0.5 mm precision dispensing
Dispensing width 0.3 mm ±0.05
Button sealing
Micro-needle dispensing / FIPG
No sticking; good tactile feel
Charging-port sealing
O-ring + dispensing assistance
Still IP68 after 10,000 insert/remove cycles
SIM-tray sealing
Liquid silicone (LSR) molding
Waterproof 1.5 m / 30 min
Earpiece / Speaker
Venting membrane + PIPG sealing
Airtightness + sound transmission
Full-device waterproofing test standard: IP67/IP68 (1.5 m depth, 30 min); airtightness test: leakage rate <0.5 sccm @30 kPa; post-aging protection: still passes after 85℃ / 85% RH for 500 h
3.4 FPC and Connector Reinforcement
Figure 3-3 FPC Reinforcement Adhesive Application Diagram: foldable-screen FPC reinforcement, bend-fatigue test, bend-life comparison (image not provided in source package)
4. Wearable Device Application Solutions

Figure 4-1 Wearable Device Silicone Application Diagram

Figure 4-2 Optical Sealant Application Diagram: camera-module sealing, PPG heart-rate sensor, optical-transparency comparison
4.1 Smart Watch Cooling Solution
Application location: main chip (AP) and shield can. Recommended product: MT-3203 (3.0 W/m·K)
Wearable cooling characteristics: small size (watch interior <2 cm³), limited cooling; surface-touch comfort (skin contact <42℃); small heat capacity, peak temperature rises quickly; requires ultra-thin coating + high-efficiency thermal conduction
4.2 Sensor Optical Sealing
Application location: heart-rate, SpO2, and ambient-light sensors. Recommended product: MT-705B optical sealant
Sensor
Optical Sealing Requirement
MT-705B
PPG Heart Rate
Light transmittance >90%; isolates ambient light
Light transmittance >95%
SpO2 Blood Oxygen
Dual-wavelength transmission; no scattering
Low haze <0.5%
Ambient Light / Proximity
IR transmission; visible-light blocking
Customizable filtering
4.3 Watch Full-Device Waterproofing
Recommended product: MT-705A (medical grade). Waterproof rating: daily 5 ATM (50 m); swimming 10 ATM (100 m); diving 20 ATM (200 m). Key requirements: biocompatibility (skin contact, ISO 10993); resistant to sweat / sunscreen / hand soap; button/knob sealing tactile feel
5. TWS Earbuds and Audio Device Solutions
5.1 TWS Earbud Chip Cooling
Recommended product: MT-3202 (2.0 W/m·K). Applications: Bluetooth chip / ANC noise-cancellation chip and shield can; charging IC cooling; wireless-charging receiver heat conduction
5.2 Acoustic Sealing Solution
Location
Sealing Purpose
Speaker front-cavity sealing
Front/rear cavity isolation; optimize low frequency
Adjustable damping; low-frequency improved by 3 dB
Microphone sealing
Noise-cancellation microphone airtightness
Airtightness <0.1 sccm
Vent-hole tuning
Passive / active noise cancellation
Venting membrane assistance
5.3 Charging Case and Earbud-Body Waterproofing
Recommended product: MT-705A. Waterproof rating: earbud body: IPX4/IPX5 (sweat/rain proof); charging case: IPX4 (splash proof). Sealing solution: earbud housing mid-frame to front-shell dispensing seal; charging-case lid magnetic dispensing; charging-PIN metal insert sealing
6. AR/VR Device Application Solutions
6.1 AR/VR Main Chip Cooling
Application location: AR/VR main AP (XR2 / Snapdragon XR, etc.) + display-driver chip. Recommended product: MT-3207 (8.5 W/m·K)
AR/VR cooling challenges: power 5–15 W, compact size (VR all-in-one <500 g); close to face, surface temperature <45℃; limited active-cooling (fan) space; grease + VC + airflow coordinated cooling
6.2 Optical Module Sealing
Recommended product: MT-705B. Applications: Pancake lens-module sealing; optical-waveguide / optical-engine module protection; eye-tracking sensor sealing; silicon-based OLED/LCOS bonding
6.3 VR Headset / AR Glasses Waterproofing
Recommended product: MT-705A. Waterproof requirements: VR controller: IP54 sweat-proof; headset body: sweat- and moisture-proof; AR glasses: IP53 (daily splash-proof)
7. Drone Application Solutions
7.1 ESC / Motor Cooling Solution
Application location: brushless-motor ESC MOSFET cooling and motor-stator cooling. Recommended product: MT-3203 thermal grease (3.0 W/m·K)
Drone Type
ESC Power
Cooling Focus
Recommendation
Consumer Aerial Drone
20~60A x 4
Air cooling + airspeed cooling
MT-3203
FPV Racing Drone
40~80A x 4
Large temperature rise at full throttle
MT-3203
Industrial / Commercial Drone
60~120A
Motor stall / overload
MT-3203+MT-4203
7.2 Flight-Control Board Conformal Coating
7.3 Camera Gimbal and Airframe Sealing
Recommended product: MT-705A. Applications: gimbal camera-module sealing; airframe compartment waterproofing; GPS / video-transmission antenna sealing
8. Smart Speaker and Smart Home Terminal Solutions
8.1 Smart Speaker Cooling Solution
Application location: amplifier chip (Class-D) cooling, WiFi/BT chip cooling. Recommended product: MT-3202 (2.0 W/m·K)
Smart Speaker Type
Amplifier Power
Cooling Characteristic
Recommendation
Portable Bluetooth Speaker
5~20W
Passive radiator + natural cooling
MT-3202
Smart-Screen Speaker
20~50W
Screen backplate + heat pipe
MT-3203
Home-Theater Speaker
50~200W
Active air cooling + heat sink
MT-3203+MT-4203
8.2 Microphone-Array Acoustic Sealing
8.3 Smart Home Terminal Sealing
Recommended product: MT-705A. Target devices: smart lock (outdoor panel IP65); smart camera (outdoor IP67); smart panel (moisture- and condensation-proof); smart-curtain motor (dust-proof IP54)
9. IoT Module and Sensor Solutions
9.1 RF PA Cooling Solution
Recommended product: MT-3202 (2.0 W/m·K). Applications: WiFi/BT RF PA cooling; NB-IoT / LTE Cat.1 module cooling; LoRa RF power-amplifier cooling
9.2 IoT Module Conformal Coating Protection
9.3 IoT Sensor Sealing Solution
Recommended product: MT-705A. Applications: temperature/humidity sensor housing sealing; gas-sensor module sealing; vibration/acceleration sensor sealing; smart door/window magnetic sealing
10. Selection Guide and Technical Data Comparison
10.1 Quick Selection Matrix
Application Scenario
Primary Requirement
Recommended Product
Alternative Product
Phone AP/GPU cooling
Ultra-high conductivity + ultra-thin
MT-3207
MT-3203
Phone multi-chip cooling
Large-tolerance gap filling
MT-4203
MT-3203
Phone camera sealing
Optical clarity + low shrinkage
MT-705B
--
Phone full-device waterproofing
IP68 + low VOC
MT-705A
--
Foldable-screen FPC reinforcement
200,000 bends
--
Watch chip cooling
Compact + high efficiency
MT-3203
MT-3202
Watch optical sensors
Light transmittance >95%
MT-705B
--
TWS earbud chip
Low-power thermal conduction
MT-3202
--
TWS acoustic sealing
Acoustic airtightness
--
AR/VR chip cooling
High conductivity + facial safety
MT-3207
MT-3203
AR/VR optical sealing
Optically clean + low VOC
MT-705B
--
Drone ESC cooling
High conductivity + vibration resistance
MT-3203
MT-4203
Drone flight-control board conformal coating
Vibration resistance + moisture proof
--
Smart speaker cooling
Amplifier cooling
MT-3202
MT-3203
Smart lock sealing
IP65 + outdoor durability
MT-705A
--
IoT module conformal coating
Moisture proof + salt spray
--
10.2 Smart Electronics Cooling Solution Tiers
Smart electronics cooling solution tiers: flagship phone AP/GPU (10–15 W) -> MT-3207 thermal grease (8.0 W/m·K) + VC vapor chamber; mid-range phone SoC (5–8 W) -> MT-3203 thermal grease (3.0 W/m·K) + copper foil; smart watch AP (1–3 W) -> MT-3202 thermal grease (2.0 W/m·K) + shield can; TWS earbud chip (<1 W) -> MT-3201B thermal grease (1.6 W/m·K) + copper foil; AR/VR AP (5–15 W) -> MT-3207 (8.5 W/m·K) + active fan; drone ESC (20–120 A) -> MT-3203 + heat-sink air cooling
11. Competitive Advantages
11.1 Technical Advantages
8.0 W/m·K ultra-high-conductivity grease: highest thermal grade in consumer electronics; 30 μm ultra-thin coating adapts to nano-scale tolerances
Optical sealant 95%+ light transmittance: low shrinkage <0.5%; validated for 1,000,000 OIS cycles
FPC reinforcement 200,000 bends: validated on foldable phones; withstands bend radius <1 mm
Acoustic sealant with adjustable damping: matches different cavity designs; low-frequency improved by 3 dB
Low-VOC full series: compliant with RoHS/REACH/halogen/HF; meets environmental requirements of major brands
11.2 Quality Advantages
Quality Dimension
Industry Standard
Our Level
Batch Cpk
>=1.33
>=1.67
Thermal Conductivity Tolerance
+/-0.2 W/m*K
+/-0.15
Viscosity Tolerance
+/-20%
+/-10%
VOC Content
No mandatory limit
<0.1%(150C/30min)
Dispensing Accuracy
+/-10%
+/-5%
11.3 Service Advantages
Thermal simulation service: chip-level / full-system thermal simulation and optimization; dispensing process package: provide precision dispensing parameter package (speed / pressure / temperature); samples in 24 h: trial samples matched to the brand; on-site support: engineers on-site during production ramp-up; custom R&D: co-develop dedicated formulations for specific chips/housings
12. Representative Case Studies
Case 1: Flagship Phone AP Cooling Solution
Customer background:
Top domestic phone brand; flagship SoC power consumption 15 W+
Requirement:
AP full-load temperature rise <35℃; surface temperature <45℃; no throttling
Solution:
VC vapor chamber + MT-3207 (8.0 W/m·K) ultra-thin coating
Result:
AP temperature rise reduced by 18℃; full-frame operation without throttling; surface temperature <43℃, comfortable to touch; full-device cooling capability improved by 25%
Case 2: Smart Watch Single-Chip Cooling
Customer background:
Wearable brand; flagship watch size limits cooling
Requirement:
Chip temperature rise <15℃; surface <42℃; battery area <40℃
Solution:
MT-3203 + thermal copper foil + shield can
Result:
Chip temperature drop 12℃; surface temperature 39℃; 10 min GPS + heart-rate full-on without frame drops; passes 5 ATM waterproofing + comfortable skin contact
Case 3: TWS Earbud ANC Optimization
Customer background:
Leading audio brand; flagship TWS noise-cancelling earbuds
Requirement:
Front/rear cavity isolation + noise-reduction depth -45 dB
Solution:
MT-705B optical sealant
Result:
Low-frequency noise reduction improved by 3 dB, reaching -48 dB; wind-noise cancellation improved by 40%; IPX5 passed; production first-pass yield 99.5%
Case 4: Foldable-Screen FPC Reinforcement Solution
Customer background:
Foldable-phone manufacturer; hinge FPC bend life
Requirement:
FPC bends >200,000 times; no fracture / fatigue
Solution:
Result:
Passed 200,000-bend test (R=2 mm); impedance change in bend zone <5%; mass-production stability Cpk 1.72
13. Technical Service System
13.1 Pre-Sales Service
Service Item
Content
Response Time
Technical Consultation
Selection + thermal simulation + solution design
Within 2 hours
Free Samples
Trial samples matched to device components
Within 24 hours
Application Testing
Dispensing process test + reliability
3 business days
Process Solution
Precision dispensing SOP + parameter package
5 business days
On-Site Visit
Technical exchange + production-line review
Within 1 week
13.2 In-Sales Service
First-lot on-site support: engineers guide precision dispensing processes on the line; operation training: SOP preparation + on-site training; equipment integration: provide precision dispensing/printing equipment parameters; environmental documents: full set of RoHS/REACH/HF/halogen
13.3 After-Sales Service
Quarterly follow-up: quality review + joint assessment; batch traceability: 3-year retained samples + full-process records; failure analysis: 24 h response + 8D report; technology upgrade: pre-research on next-gen cooling/waterproofing solutions We are committed to providing professional, integrated thermal-conductivity, sealing, protection, and reinforcement solutions for the smart electronics industry.
