3M Scotch-Weld One-Part Epoxy Adhesive 6100LV Black — Authorized Distributor Vietnam

General Description of 3M Scotch-Weld 6100LV Black 

3M Scotch-Weld One-Part Epoxy Adhesive 6100LV Black is an ultra-low-viscosity, single-component flexible epoxy engineered for sealing, wicking, and precision dispensing in consumer electronics assembly. At approximately 1,000 cP (Brookfield), it is purpose-built to wick into hairline gaps, narrow channels, and capillary joints by capillary action — eliminating the need for applied pressure and enabling sealing of complex geometries that higher-viscosity adhesives cannot access.

Its standout feature for electronics manufacturers is validated water resistance: tested to withstand up to 2.5 m of water pressure on polycarbonate substrates using a thin bondline frame around the device perimeter. This makes 6100LV Black a proven solution for water-sealing smartphones, tablets, and wearables. Like all 3M 6100 Series products, it cures at 65°C (≈30 min) or snap-cures at 90°C (≈4 min), with a pot life exceeding 4 weeks. After cure, it remains flexible at 350% elongation — accommodating CTE mismatch between dissimilar materials and absorbing mechanical stress in drop events.

Features & Benefits

• Ultra-low viscosity (≈1,000 cP Brookfield): wicks into gaps and capillary spaces by capillary action; ideal for perimeter sealing without applied pressure
• Validated water resistance up to 2.5 m: tested on PC substrates with 3M water indicator dots — proven solution for smartphone and wearable water-sealing (note: not tested to IPX8 standard)
• Flexible after cure (350% elongation, 2 MPa modulus): minimizes stress on small joints with CTE mismatch between metals, plastics, and glass
• Low-temperature cure at 65°C (≈30 min): protects heat-sensitive electronic components and substrates; snap cure at 90°C in ≈4 minutes
• Long pot life > 4 weeks at room temperature: enables lean inventory, flexible production scheduling, and reduced material waste
• Jettable and dispensable: compatible with precision automated dispensing and jetting equipment for small electronics applications
• Low halogen (IEC 61249-2-21): supports environmental compliance in consumer electronics supply chains
• One-part, no mixing: ready to use directly from syringe; eliminates mixing errors and pot-life management of two-component systems

Typical Applications

• Water resistance sealing of smartphones, tablets, smartwatches, and wearable devices
• Perimeter sealing of electronic device housings
• Wicking adhesive for underfill and gap-filling in small electronic assemblies
• Precision dispensing and jetting in miniaturized electronics
• Bonding of flexible and rigid substrates with CTE mismatch
• Mobile device and wearable electronic device bonding and assembly