• Item Name: LOCTITE® 641
• Manufacturer: Henkel
• Technologies: Acrylic, Methacrylate Ester
• Color: Yellow
• Cure Type: Anaerobic, Secondary Cure with Activator
• Package Size: Contact to Avantek for details.
• Shelf Life: Contact to Avantek for details.
LOCTITE® 641 is a medium-strength, anaerobic acrylic adhesive designed for bonding cylindrical fitting parts, especially where disassembly is needed for servicing. It cures in the absence of air between close-fitting metal surfaces, preventing loosening and leakage due to shock and vibration.
| Property | Value |
|---|---|
| Appearance | Yellow liquid |
| Specific Gravity @ 25°C | 1.07 |
| Viscosity @ 25°C (mPa·s) | 1,215 – 2,750 (2.5 rpm) / 400 – 800 (20 rpm) |
| Fluorescence | Negative |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion | 80×10⁻⁶ K⁻¹ |
| Coefficient of Thermal Conductivity | 0.1 W/(m·K) |
| Specific Heat | 0.3 kJ/(kg·K) |
| Property | Value |
|---|---|
| Compressive Shear Strength (ISO 10123) | ≥6.5 N/mm² (940 psi) |
| Condition | Strength Retention (%) |
|---|---|
| Motor oil @ 125°C (1000 h) | 90 |
| Unleaded Petrol @ 22°C (1000 h) | 95 |
| Brake fluid @ 22°C (1000 h) | 100 |
| Water/glycol (50/50) @ 87°C (1000 h) | 90 |
| Ethanol @ 22°C (1000 h) | 100 |
| Acetone @ 22°C (1000 h) | 80 |
FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.
As the year draws to a close and the Christmas season arrives, Avantek Viet Nam would like to extend our warmest Christmas greetings to all our valued customers, partners, and friends.
Partial Gasket & Seal Strategies Using Henkel Loctite SI 5910
Gasket sealing is a core part of many industrial assembly and maintenance operations — from automotive engine housings to HVAC covers and machinery flanges. When selecting a gasketing solution, you need something that forms reliably in place, resists movement and fluids, and simplifies application — which is where Henkel Loctite SI 5910 fits perfectly
✍Background / Market TrendAs Avantek Vietnam, we know the automotive industry pushes the boundaries of performance, durability, and efficiency, traditional sealing methods are no longer
Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
Our solutions promise to bring best optimal effectiveness along with competitive prices, excellent customer services, dedicated on-site support.
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