3M Scotch-Weld DP270 Low-Viscosity Epoxy Potting Compound Electronic Components
Basic Properties
3M Scotch-Weld DP270 is a two-part low-viscosity epoxy potting compound/adhesive available in Clear and Black variants. It features a 1:1 mix ratio by volume, 60-70 minute worklife at 23°C, designed for potting, sealing, and encapsulation of electronic components with negligible exotherm and non-corrosive to copper.
Product Description
DP270 is ideal for protecting heat-sensitive components (e.g., glass diodes, sensors) and precision electronics (transformers, relays). It maintains excellent electrical insulation under high humidity (volume resistivity 4.1×10¹⁴ ohm-cm), certified UL 94 HB (File E61941), with full cure in 48 hours at 23°C.
Characteristics
| Property |
DP270 Value |
| Viscosity @23°C |
7,000-16,000 cps (Base)
6,000-12,000 cps (Accelerator) |
| Dielectric Strength |
850 volts/mil |
| Thermal Conductivity |
0.103 BTU-ft./ft²·hr·°F |
| Glass Transition Temp (Tg) |
43°C (onset) / 49°C (mid-point) |
| Compression Strength |
8,100 psi @23°C |
| Adhesion Strength (Al/Al) |
2,450-2,500 psi @23°C |
| Salt Spray Resistance |
Pass 5 cycles (-50°C↔100°C) |
Application Scenarios
Automotive Sensors: Encapsulates engine O₂ sensors, passes -50°C to 100°C thermal shock (5 cycles), compliant with Delphi EP-9-4 specifications.
RF Transformers: Potting for 5G base station power modules, withstands 60°C/96% RH aging (2×10¹¹ ohm insulation resistance), implemented in Nokia AirScale.
Medical Electronics: Seals portable monitor PCBs, passes ASTM D3482 copper corrosion test (15-day), meets IEC 60601-1 safety standards.
ndustrial Relays: Encapsulates Siemens SIRIUS relay coils, 70-min worklife suits production line, 300% weather resistance improvement.
FAQ:
1. Who are we?
We are 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%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
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
5. What services do you provide?
Delivery:EXW/FOB/CIF
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