Product Introduction
3M™ Scotch-Weld™ Structural Adhesive Film AF 131-2 is a modified epoxy adhesive film designed for high-performance, long-term durability in metal and composite bonding. Featuring a glass cloth carrier for enhanced structural support, this tan-colored adhesive is ideal for solid panel and honeycomb sandwich construction. It cures at 350°F (175°C) and provides excellent elevated temperature performance, maintaining high bond strength at temperatures up to 450°F (232°C). Engineered to meet demanding aerospace manufacturing requirements, AF 131-2 offers high fracture toughness and peel strength across a wide service temperature range from -67°F (-55°C) to 450°F (232°C). This heat-curing, easy-to-handle film is perfect for bonding honeycomb and metal-to-metal components where high strength in challenging, high-temperature environments is critical.
3M™ AF 131-2 Features
- Cures at 350°F (175°C)
- Excellent elevated temperature performance
- Maintains high bond strength up to 450°F (232°C)
- Glass cloth carrier for enhanced structural support
- Tan color for easy visual identification
- Provides long-term durability in metal and composite bonding
- Ideal for honeycomb sandwich and metal-to-metal bonding
- Delivers high fracture toughness and peel strength
3M™ AF 131-2 Applications
- Bonding honeycomb panels in aerospace structures
- Metal-to-metal bonding requiring high-temperature resistance
- Structural bonding for solid panels and honeycomb sandwich construction
- Applications requiring high bond strength from -67°F to 450°F (-55°C to 232°C)
- Manufacturing processes demanding high fracture toughness and peel strength
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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| Property | Value |
|---|---|
| Adhesive Type | Epoxy |
| Application | Bonding |
| Brands | Scotch-Weld™ |
| Cure Rate | 1 hr |
| Curing Temperature (Celsius) | 177 ℃ |
| Curing Temperature (Fahrenheit) | 350 ℉ |
| Maximum Operating Temperature (Celsius) | 232 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 450 ℉ |
| Minimum Operating Temperature (Celsius) | -55 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -67 ℉ |
| Nominal Weight (Imperial) | 0.075 lb/ft² |
| Product Color | Tan |
| Product Form | Roll |
| Storage Environment | Freezer Storage |
| Substrate | Metal |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 33 m |
| Overall Width (Imperial) | 40 in |
| Overall Width (Metric) | 1016 mm |



