Brand: Plexus®
Plexus® MA425 is a two-part methacrylate adhesive designed for structural bonding of thermoplastics, metals, and composite assemblies. It has a 10:1 mix ratio, a working time of 28 to 30 minutes, and reaches approximately 75% of ultimate strength in 80 to 90 minutes at 74°F (23°C).
This adhesive is commonly used in transportation and marine industries due to its minimal surface preparation requirements. It provides excellent fatigue endurance, impact resistance, and superior toughness.
MA425 is blue when mixed and is supplied in ready-to-use cartridges, pails, or drums. It dispenses as a non-sagging gel.
| Property | Part A (Adhesive) | Part B (Activator) |
|---|---|---|
| Color | Off-White | Blue |
| Viscosity | 100,000 – 125,000 cP | 35,000 – 70,000 cP |
| Density | 0.97 g/mL | 1.05 g/mL |
| Mix Ratio (by volume/weight) | 10:1 / 9.00:1 | – |
| Peak Exotherm Temperature (30g mass) | 220°F (105°C) | – |
| Peak Exotherm Time (30g mass) | 50 – 70 minutes | – |
| VOC Content | < 1% | – |
| Property | Value |
|---|---|
| Color | Off-White |
| Shore D Hardness | 72 |
| Elongation at Break | 30 – 50% |
| Tensile Strength | 2,565 – 3,135 psi (17.7 – 21.6 MPa) |
| Tensile Modulus | 123 – 167 kpsi (850 – 1,150 MPa) |
| Gap Tolerance | 0.03 – 0.375 in (0.75 – 9.5 mm) |
| Substrate | Lap Shear Strength (psi/MPa) | Failure Mode |
|---|---|---|
| Aluminum 6061 | 1,835 psi (12.7 MPa) | Adhesive Failure (AF) |
| Powder Coated Steel | 2,087 psi (14.4 MPa) | Substrate Failure (SF) |
| Stainless Steel | 1,708 psi (11.8 MPa) | Cohesive Failure (CF) |
| Gel Coat | 327 psi (2.3 MPa) | Substrate Failure (SF) |
| PU Coated GFRP | 397 psi (2.7 MPa) | Substrate Failure (SF) |
| Temperature | Work Time | Time to 50 psi | Time to 500 psi | Time to 1000 psi |
|---|---|---|---|---|
| 60°F (15.6°C) | 30 – 32 min | 105 – 110 min | 110 – 115 min | 115 – 120 min |
| 75°F (23.9°C) | 28 – 30 min | 80 – 85 min | 90 – 95 min | 100 – 105 min |
| 90°F (32.2°C) | 22 – 23 min | 45 – 50 min | 50 – 55 min | 55 – 60 min |
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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