Product Introduction
3M™ Scotch-Weld™ Structural Adhesive Film AF 31 is a high-performance, yellow-colored adhesive film engineered for metal-to-metal bonded structures requiring exceptional durability, especially in high-temperature environments. This thermosetting modified epoxy film provides reliable peel strength and maintains high bond integrity across an extremely wide service temperature range from -67°F to 500°F (-55°C to 260°C). Compatible with 3M™ Scotch-Weld™ Structural Adhesives Primer EC-2174, 3M™ AF 31 is easy to handle and can be tacked into position before its 350°F cure. It is ideal for creating lightweight, innovative designs by minimizing rivet usage in aerospace and industrial applications.
3M™ AF 31 Features:
- Designed for a 350°F (175°C) cure temperature.
- Provides good flexibility and shear strength across a vast service temperature range of -67°F to 500°F (-55°C to 260°C).
- Easy application in a film form that can be pressure, heat, or solvent tacked in place.
- Delivers excellent retention of strength after aging in various harsh environments.
- Yellow in color for easy visual inspection.
- Optimized for demanding metal-to-metal bonding applications.
- Compatible with 3M™ Scotch-Weld™ Structural Adhesives Primer EC-2174.
- Offers reliable peel strength even in challenging conditions.
3M™ AF 31 Applications:
- High-temperature metal-to-metal bonding in aerospace and industrial settings.
- Structural components exposed to continuous or intermittent high heat.
- Fabrication of monolithic bonding and honeycomb sandwich structures.
- Applications demanding high shear and peel strength under extreme temperature fluctuations.
- Aircraft component manufacturing where rivet reduction is critical for weight savings.
- Designs requiring long-term durability and resistance to environmental degradation.
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 | Nitrile Phenolic |
| Application | Bonding |
| Cure Rate | 1 hr |
| Curing Temperature (Celsius) | 175 ℃, 177 ℃ |
| Curing Temperature (Fahrenheit) | 350 ℉ |
| Maximum Operating Temperature (Celsius) | 260 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 500 ℉ |
| Minimum Operating Temperature (Celsius) | -55 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -67 ℉ |
| Nominal Adhesive Thickness (Imperial) | 10 mil |
| Nominal Adhesive Thickness (Metric) | 0.254 mm |
| Product Color | Yellow |
| Product Form | Roll |
| Storage Environment | Refrigeration Storage |
| Substrate | Metal |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 33 m |
| Overall Width (Imperial) | 6 in, 11.5 in, 20 in |
| Overall Width (Metric) | 152 mm, 292 mm, 508 mm |
