
FX219G5 – Silicone Potting & Encapsulation Compound
Everwide FX219G5 Silicone Potting Compound – high-thermal, UL94 V-0 silicone potting for electronic modules. Compare with Shin-Etsu KET-132 silicone potting.
Brand: Insulcast
RTVS A-4000 is a two-component, solvent-based silicone resin adhesive with excellent lap shear and peel strength, even at elevated temperatures. It is designed for bonding silicones, Mylar, metals, and various engineering plastics while maintaining flexibility between -73°C and 260°C. This adhesive is approved for use by the U.S. Army Missile Command and Department of Defense (MIL-A-47317(MI)), making it ideal for high-performance military and industrial applications.
✅ Excellent Lap Shear & Peel Strength: Provides durability at high temperatures (up to 300°F / 149°C).
✅ Solvent-Based Formula: Ensures fast drying and strong adhesion.
✅ Wide Service Temperature Range (-73°C to 260°C): Retains flexibility and adhesion in extreme conditions.
✅ Versatile Bonding: Adheres to silicone, Mylar, metals, and engineering plastics.
✅ Military-Approved (MIL-A-47317(MI)): Meets rigorous defense standards.
🔹 Aerospace & Military Components: Used in aircraft, missiles, and defense systems.
🔹 Electronics & Industrial Equipment: Provides strong adhesion for electrical and mechanical assemblies.
🔹 High-Temperature Bonding: Suitable for applications exposed to extreme heat and thermal cycling.
🔹 Structural Bonding: Ideal for joining engineered plastics and metals.
| Property | Part A | Part B | Mixed | Test Standard |
|---|---|---|---|---|
| Color | Light Straw | Clear | – | Visual |
| Viscosity (cP) | 1,000 – 5,000 | 50 | 900 – 2,500 | ASTM D2393 |
| Specific Gravity | 0.99 | 0.95 | – | – |
| Mix Ratio (by Weight) | 100:3.3 | – | – | – |
| Solvent Content | Toulene | – | – | – |
| Solids Content (%) | 55 | – | – | – |
| Flash Point (°F) | 40 | – | – | – |
| Pot Life (Refrigerated, 25°C) (min) | 24 | – | – | – |
| Property | Value | Test Standard |
|---|---|---|
| Service Temperature Range (°C) | -73 to 260 | – |
| 180° Peel Strength (Mylar to Mylar) (oz/inch) | 36 | – |
| Lap Shear Strength (Mylar to Mylar) (psi) | 130 | ASTM D624 |
| Lap Shear Strength (Silicone to Aluminum) (psi) | 120 | ASTM D624 |
| Property | Value | Test Standard |
|---|---|---|
| Dielectric Strength (V/mil) | 450 | ASTM D149 |
| Cure Method | Time & Temperature |
|---|---|
| Room Temperature Cure | 1 to 4 days at 25°C (77°F) |
| Accelerated Cure | 8 hours at 200°C (392°F) |

Everwide FX219G5 Silicone Potting Compound – high-thermal, UL94 V-0 silicone potting for electronic modules. Compare with Shin-Etsu KET-132 silicone potting.

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
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