Product Introduction
3M™ Scotch-Weld™ Structural Adhesive Film AF 46 is a thermosetting, nonvolatile polyamide epoxy film adhesive engineered for the high-strength structural bonding of metals and glass. This lightweight, 1.0 mil film is easy to handle in a shop environment and provides high shear, peel, and cleavage strengths across a wide operational temperature range from -67°F to 350°F (-55°C to 175°C). Offering flexible cure cycles and a high degree of clarity when in contact with a solid surface, it allows for the use of relatively low bonding pressures. 3M™ AF 46 is designed to meet numerous aerospace specifications, enabling innovative designs that reduce the number of mechanical fasteners like rivets for lighter, more streamlined structures.
3M™ AF 46 Features:
- Provides excellent and durable adhesion to metal and glass substrates.
- Formulated with high shear, peel, and cleavage strengths across a broad temperature range.
- Delivers a high degree of film clarity when in contact with a solid surface.
- Offers flexible cure cycles to accommodate various manufacturing processes.
- Requires relatively low bonding pressures for effective adhesion.
- Features low tack and low flow properties for precise application and minimal cleanup.
- Thermosetting film is lightweight and easy to handle.
3M™ AF 46 Applications:
- Structural bonding of metals and glass, particularly in aerospace manufacturing.
- Applications demanding high shear, peel, and cleavage strengths across extreme temperatures.
- Bonding scenarios that require a lightweight, easy-to-handle adhesive film.
- Metal-to-glass bonding projects where high optical clarity is important.
- Structural designs seeking to reduce rivet count for weight savings and improved aerodynamics.
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) | 121 ℃ |
| Curing Temperature (Fahrenheit) | 250 ℉ |
| Maximum Operating Temperature (Celsius) | 175 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 350 ℉ |
| Minimum Operating Temperature (Celsius) | -55 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -67 ℉ |
| Nominal Adhesive Thickness (Imperial) | 1 mil |
| Nominal Adhesive Thickness (Metric) | 0.025 mm |
| Nominal Weight (Imperial) | 0.006 lb/ft² |
| Product Form | Roll |
| Storage Environment | Refrigeration Storage |
| Substrate | Metal |
| Overall Length (Imperial) | 60 yd |
| Overall Length (Metric) | 54.9 m |
| Overall Width (Imperial) | 4 in |
| Overall Width (Metric) | 102 mm |



