Description
Permabond MT3809 is a two-part, 10:1 modified epoxy adhesive designed for potting, encapsulation, and sealing applications where low viscosity and flexible performance are required. It forms strong, durable bonds to plastics, composites, and metals, including nylon, ABS, and polycarbonate, and cures at room temperature for convenient production use.
The MT3809’s self-leveling flow and low viscosity make it an ideal choice for filling intricate components and electronic potting applications where complete void coverage and vibration resistance are critical.
Key Features & Benefits
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Low-viscosity, self-leveling formula for intricate potting and encapsulation
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Excellent adhesion to plastics, composites, and metals
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Soft, flexible cured film absorbs vibration and thermal expansion
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Room-temperature cure—no heat required
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Fast handling time for efficient production cycles
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Static mixer included with each 490 ml cartridge
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Resists moisture, vibration, and temperature cycling
Common Applications
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Electronic potting and encapsulation
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Sealing and bonding of dissimilar materials
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Electrical component protection from moisture and impact
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Vibration-damping adhesive joints
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Industrial repair and assembly bonding
Technical Specifications
| Property | Value |
|---|---|
| Mix Ratio (by volume) | 10:1 |
| Viscosity (Resin/Hardener) | 6,000–10,000 / 5,000–10,000 cP |
| Pot Life @25°C | 10–12 minutes |
| Handling Time | 25–30 minutes |
| Full Cure @25°C | ≥72 hours |
| Shear Strength (Mild Steel) | 6–8 N/mm² (900–1200 psi) |
| Elongation at Break | 150% |
| Hardness | 75–85 Shore A / 20–30 Shore D |
| Peel Strength (Aluminum) | 60–80 N/25 mm (13–18 PIW) |
| Service Temperature Range | -40°C to +120°C (short-term higher) |
(Data from manufacturer technical datasheet.)
Compliance & Handling
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RoHS & REACH compliant
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Non-corrosive formulation safe for electronics
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Low-outgassing and moisture-resistant
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Recommended storage: 5–25°C (41–77°F)
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Not recommended for contact with strong oxidizers
Compatible Substrates
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Nylon, ABS, PVC, and Polycarbonate
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FRP and Carbon Fiber Composites
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Mild Steel, Aluminum, and other metals
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Acrylic and other engineering plastics
Packaging & Ordering
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490 ml dual cartridge (10:1 mix ratio)
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Includes static mixing nozzle for easy application
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Use with compatible dispensing gun
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Bulk options available on request
Related Products
Get Expert Help
For recommendations on potting compounds or modified epoxies, contact Chemical Concepts at [email protected] or 800-220-1966.
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