General Description of 3M Scotch-Weld One-Part Epoxy Adhesive 6102 Black
3M Scotch-Weld One-Part Epoxy Adhesive 6102 Black is a high-performance, single-component structural epoxy engineered for precision electronics assembly. It features shear-thinning rheology — viscosity drops dramatically under application force, then recovers immediately at rest — making it uniquely suited for jetting, stencil printing, and robotic dispensing processes where fine-pitch placement and controlled deposit volume are critical.
Unlike conventional one-part epoxies that require cure temperatures above 125°C, 6102 Black achieves full structural strength at 65°C in just 20 minutes. This low-temperature cure profile protects heat-sensitive components such as batteries, thin plastics, and pre-assembled electronics from thermal damage while still delivering robust mechanical and electrical performance. With a pot life exceeding 4 weeks at room temperature, 6102 Black offers exceptional process flexibility without the handling complexity of two-part systems.
Features & Benefits
- Shear-thinning viscosity (41–730 Pa·s): flows freely during jetting/dispensing, holds shape immediately after deposit — zero slump on vertical or complex surfaces
- Low-temperature cure at 65°C: eliminates thermal damage risk for batteries, thin-wall plastics, and delicate electronics; snap cure at 90°C in 3 minutes for high-throughput lines
- Excellent impact resistance: 97 J/m Notched Izod impact strength; absorbs mechanical shock in drop-prone consumer devices
- Broad substrate adhesion: strong bond to aluminum, stainless steel, FR-4, PC/ABS, glass-filled polyamide, and other engineering plastics
- Halogen-compliant (IEC 61249-2-21): supports RoHS/REACH compliance requirements for consumer electronics supply chains
- Outstanding electrical insulation: dielectric strength 47 kV/mm, volume resistivity 3.4 × 10¹³ Ω·cm — ideal for PCB encapsulation and electronic assembly
- One-part convenience: no mixing, no pot life countdown after opening — store and use directly from syringe or cartridge
- UV-black coloring: provides visual contrast on boards; aids automated optical inspection (AOI) verification
Typical Applications of 3M Scotch-Weld One-Part Epoxy Adhesive 6102 Black
- Mobile device bonding (smartphone, tablet structural assembly)
- Wearable electronic device bonding
- PCB component encapsulation and underfill
- Jetting and stencil/screen printing onto electronic substrates
- Sensor and camera module attachment
- Molding and potting of electronic assemblies
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
|---|---|
| Component | 1-Part |
| Color | Black |
| Viscosity (Cone & Plate @ 0.1 Hz) | 730 Pa·s (Shear-thinning) |
| Viscosity (Cone & Plate @ 1 Hz) | 160 Pa·s |
| Viscosity (Cone & Plate @ 10 Hz) | 41 Pa·s |
| Thixotropic Index (0.1 Hz / 1 Hz) | 4.6 |
| UV Fluorescent Tracer | No |
| Pot Life (@ 23°C) | > 4 weeks |
| Liquid Density | 1.29 g/mL |
| Cure Time @ 65°C (Handling Strength) | ~15 minutes |
| Cure Time @ 65°C (Full Cure) | ~20 minutes |
| Peak Stress | 25 MPa (ASTM D638) |
| Young’s Modulus | 610 MPa (ASTM D638) |
| Elongation at Break | 71% (ASTM D638) |
| Shore D Hardness | 72 (ASTM D2240) |
| Glass Transition Temperature Tg (DMA) | 44°C |
| Notched Izod Impact Strength | 97 J/m (ASTM D256) |
| Lap Shear Strength – Aluminum (65°C, 20 min) | 32 MPa |
| Lap Shear Strength – Aluminum (65°C, 60 min) | 39 MPa |
| Lap Shear Strength – Stainless Steel | 35 MPa |
| Lap Shear Strength – FR-4 | 29 MPa |
| Dielectric Strength | 47 kV/mm (ASTM D149) |
| Dielectric Constant Dk (100 kHz) | 4 |
| Volume Resistivity | 3.4 × 10¹³ Ω·cm |
| Halogens (Cl, Br) | Compliant with IEC 61249-2-21 |
| Shelf Life | 12 months at -20°C |
| Packaging Sizes | 30 mL syringe, 55 mL cartridge, 591 mL cartridge |
