Item Name: Stobicast® L 781.XX
Manufacturer: Stockmeier Urethanes GmbH & Co. KG
Technologies: 2-component polyurethane casting compound
Color: Colourless, Black (RAL 9005), Silver Grey (RAL 7001), Gentian Blue (RAL 5010), White (RAL 1013)
Cure Type: Room temperature or accelerated by heat (e.g. 4 h at 100 °C)
Package Size: 200 L drums. Other sizes on request.
Shelf Life: 6 months
Stobicast® L 781.XX is a two-component elastic polyurethane casting compound engineered for superior mechanical and electrical performance. It offers excellent impact strength, resistance to water, transformer oil, gasoline, and various chemicals, making it particularly suitable for low-voltage insulation. The system is UL 94 V-0 certified for self-extinguishing properties, free of halogen and antimony-based flame retardants, and fully compliant with RoHS and WEEE directives. Additionally, it meets IEC 60335 glow wire standards, with GWFI at 850 °C and GWIT at 775 °C, ensuring high safety in electrical and electronic applications.
Insulation of low-voltage electrical components such as transformers, coils, and switchgear.
Encapsulation of electronic modules requiring high dielectric strength and thermal endurance.
Suitable for environments exposed to oils, fuels, and moisture where long-term reliability is essential.
Used in flame-retardant casting applications for household and industrial equipment.
(measured at 25 °C unless specified)
| Property | Polyol | Polyisocyanate | Mixture (Uncured) | Cured (16h/80 °C) |
|---|---|---|---|---|
| Density (g/cm³) | 1.46 | 1.22 | 1.42 | – |
| Viscosity (mPa·s) | 3000 | 20 | 800 | – |
| Mixing ratio (by weight) | 100 | 16.7 | – | – |
| Pot life (20 °C) | – | – | 3–120 min | – |
| Shore hardness (A) | – | – | – | 87 |
| Tensile strength (N/mm²) | – | – | – | 5 |
| Elongation at break (%) | – | – | – | 100 |
| Impact strength (kJ/m²) | – | – | – | 40 |
| Notched impact strength (kJ/m²) | – | – | – | 13 |
| Glass transition temp. (°C) | – | – | – | 0 |
| Dielectric strength (kV/mm) | – | – | – | 24 |
| Surface resistance (Ω) | – | – | – | 10¹⁴ |
| Volume resistivity (Ω·cm, 20 °C) | – | – | – | 10¹⁴ |
| Tracking resistance (CTI, V) | – | – | – | >600 |
LOCTITE ECCOBOND UF 9000AG-061 is specifically formulated for FCBGA and Cu pillar flip chip packaging, ensuring robust solder joint encapsulation under extreme electrothermal cycling from -65 °C to 150 °C. Its superior capillary flow also optimizes throughput in automated assembly lines for high-density ICs.
BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.
LOCTITE® ABLESTIK NCA 3218 is specifically formulated for ADAS optical modules, ensuring secure bonding in lens barrel to housing and lens housing to circuit board interfaces where dimensional accuracy and dielectric integrity are non negotiable.
Loctite® 3296, a dual cure (UV & thermal) adhesive, is engineered for active alignment assembly of ADAS cameras and LiDAR modules. Its optimized bonding to aluminum and FR4 substrates ensures secure fixation of optical components while enabling nanometer level alignment critical for high resolution imaging.
Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
Through partnerships with leading global brands, we deliver high-value materials, expert consulting, and optimized supply chains ensuring timely delivery, efficiency, and sustainable growth for our clients.
At Techniq, our mission is to connect cutting-edge materials, processes, and equipment with customer needs, enabling efficiency, reliability, and long-term value creation.
Tel: +84 88 990 19 29
Copyright © TECHNIQ VIETNAM
Leave your information or connect via Hotline, and our expert team will reach out immediately to provide professional consultation and customized solutions.
Email: info@techniq.vn
Our Technical Support Team is on hand from 8:30 AM to 5:30 PM (GMT+7).
For requests outside these hours, please submit your request form and we will respond at the earliest opportunity.