Product Name
Permabond MT382 Medium Set 20 - 50 min Modified Two Component Epoxy Black Cartridge And Accessories
Brief Description
Permabond MT382 is a two-part, modified epoxy adhesive engineered for high-performance bonding, sealing, and potting applications. It offers a unique combination of epoxy strength and RTV-type silicone flexibility, curing at room temperature to form tough, flexible bonds.
Popular Applications & Uses
- Electronic potting and encapsulation of sensitive components.- Sealing and bonding of dissimilar materials.- Assembly of FRP, composite, and plastic housings.- Vibration-damping adhesive joints.- General manufacturing and maintenance repairs.
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- Electrical Services or Products- General Manufacturing- LED/Electronics- Marine- Medical Device/ Prosthetics- Metal Fabrication- Plastic Fabrication- Transportation/ Specialty Vehicle
Special and Unique Features
- Modified epoxy technology combining epoxy curing characteristics with the flexibility of an RTV-type silicone.- Excellent adhesion to a wide variety of substrates, including plastics (Nylon, ABS, Polycarbonate) and metals.- Full cure at room temperature (≥72 hours).- Self-leveling for easy, even coverage in potting and encapsulation.- Forms flexible and tough bonds that withstand vibration, impact, and thermal cycling.- Adjustable flexibility based on the mix ratio.- Resistant to moisture, vibration, and thermal shock.- Non-corrosive formulation, making it ideal for electronic applications.- Can withstand higher temperatures for brief periods, such as during paint baking and wave soldering processes.- Minimum service temperature of -40°C.
Key Properties
- Type: Two-part, modified epoxy adhesive.- Color: Black.- Mix Ratio (by volume): 2 parts resin to 1 part hardener.- Usable / Pot Life @25°C: 20-50 minutes.- Handling Time @25°C: 105-120 minutes.- Full Cure @25°C: ≥72 hours.- Hardness (ISO868): 55-85 Shore A / 20-30 Shore D.- Elongation at Break (ISO37): 150-200%.- Service Temperature Range: -40°C to 120°C (short-term exposure to higher temperatures).- Dielectric Strength: 20-30 kV/mm.- Thermal Conductivity: 0.47 W/(m.K).- Viscosity (Resin/Hardener): 20,000–45,000 cP / 200–400 cP.
Surface Compatibility
- Nylon- ABS- Polycarbonate- PVC- Other plastics- Various metals (e.g., mild steel, aluminum)- Composites (e.g., FRP Glass Epoxy, FRP Glass Polyester, Carbon Fibre)
Known backups / known substitutes
- Permabond MT3821 (a higher viscosity version with good gap fill capabilities and a shorter pot life of 10-20 minutes).- Other rubber toughened epoxies may offer improved impact and vibration resistance.- Permabond TA4611 (a two-part 1:1 toughened acrylic adhesive).- Permabond MT3836.
Comparison Note
Permabond MT382 stands out by combining the high strength typical of epoxies with the flexibility often associated with RTV-type silicones. This modified epoxy technology provides superior impact, vibration, and thermal cycling resistance compared to conventional epoxies or even some rubber-toughened epoxies. Its self-leveling property and ability to cure at room temperature enhance its versatility for a broad range of industrial and electronic assembly applications.
