DOWSIL™ 1-4173 Thermally Conductive Adhesive with 1.8W/m·K Thermal Conductivity, UL 94-V0 Rating, and One-Part Curing for PCB Heat Sink Bonding
Price:
1250
MOQ:
1
Delivery Time:
3-5
Brand:
DOWSIL
Product Description
DOWSIL™ 1-4173 Thermally Conductive Adhesive for PCB Heat Sink Bonding
DOWSIL™ 1-4173 is a one-part gray, flowable thermally conductive adhesive that cures upon heating. It offers high tensile strength and good thermal conductivity (1.8 W/m*K), contains no solvents, requires no mixing, and is suitable for automated or manual dispensing.
Product Properties
| Property | Unit | Value |
|---|---|---|
| One/Two-Part | - | One |
| Color | - | Gray |
| Viscosity | Pa*s | 61 |
| Thermal Conductivity | W/m*K | 1.8 |
| Cure Time at 150°C | minutes | 20 |
| Lap Shear Strength (Al) | MPa | 4.5 |
| CTE | ppm/°C | 125 |
| UL Flammability | - | UL 94-V0 |
Technical Features
Formulated with polydimethylsiloxane and aluminum oxide, DOWSIL™ 1-4173 cures without by-products, enabling uniform curing in deep or confined sections. Its low surface tension ensures wetting on most substrates, reducing thermal contact resistance and efficiently transferring heat away from PCB components to improve reliability.
Special Properties
- Unprimed adhesion to metals, ceramics, and epoxy laminates
- Aluminum lap shear strength of 4.5 MPa
- Linear CTE of 125 ppm/°C
- Durometer hardness of Shore A 92
- UL 94-V0 flammability rating
- Resists ozone and UV degradation
- Operating temperature range: -45°C to 200°C
Application Scenarios
DOWSIL™ 1-4173 is used for bonding integrated circuit substrates, sealing lids and housings, and attaching heat sinks in high-power LEDs, power modules, automotive electronics, and industrial control systems for thermal management.
About Our Company
Shenzhen Huazhisheng New Material Technology Co., Ltd.
A professional industrial adhesives and sealants supplier based in China since 2018. We serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
Product Portfolio
We supply high-performance adhesives and sealants from global leaders including: Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive.
Quality Assurance
- Mandatory pre-production samples approval
- Final inspection by QC team before shipment
- International certifications: SGS, UL, FDA, RoHS, REACH
Why Choose Us
- Reliable Supply: Authentic products from top manufacturers
- Expert Support: Technical guidance for product selection
- Global Compliance: Certifications meeting target market standards
- Efficient Service: Customized solutions & professional support
Services Provided
Delivery: EXW/FOB/CIF; Payment: USD/EUR/CNY/HKD via T/T, L/C; Support: Technical consultation & logistics coordination
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Huazhisheng New Material Technology Co., Ltd.
Location
101, No. 130 Fengping Road, Shitouling Industrial Zone, Wulian Village, Fenggang Town, Dongguan City, Guangdong Province, China
Contact Person
ouyang