Product Introduction of 3M Scotch-Weld Composite Surfacing Film AF 325LS
3M Scotch-Weld Composite Surfacing Film AF 325LS – White is a thermosetting epoxy that we developed as an excellent product for surfacing composites, where its smooth, void-free surface with minimal pinholes reduces the need for subsequent surface fill or finishing and pre-paint prep. It includes copper mesh for lightning strike protection.
3M™ Scotch-Weld™ Composite Surfacing Film AF 325 LS White is a low density film that provides excellent temperature range performance from -67°F (-55°C) to 300°F (149°C) for applications required in the aerospace industry. This surfacing film is available in both white and blue, which provides color contrast to underlying composite prepreg. AF 325 LS White is co-cure compatible with most epoxy composite prepreg systems at both 250°F (121°C) and 350°F (177°C). For surfacing applications, AF 325 LS White provides a smooth surface with minimal pinholes and other surface imperfections, which reduces the need for subsequent surface filling, fairing and sanding operations. Its low density formulation aids in pre-paint surface preparation.
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Creating efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants and other products that effectively reduce costs on multiple fronts. Professionals across the industry know the cost-saving advantages of 3M™ Aerospace. Our brand is widely recognized for the highest standards of quality and performance and adds value to the final results. By engineering reliability, longevity and performance into all of our products, we have a history of saving money by reducing waste, rework and time.
Key Features
- Co-cure compatible with most epoxy composite prepreg systems
- Provides a smooth surface with minimal pinholes and other surface imperfections
- Reduces the need for subsequent surface filling, fairing and sanding operations
- Low density formulation aids in pre-paint surface preparation
- Operational performance range from -67°F (-55°C) to 300°F (149°C)
Key Applications
- Composite surfacing applications in the aerospace industry
- Pre-paint surface preparation for composite components
- Lightning strike protection applications
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Brands | Scotch-Weld™ |
| Maximum Operating Temperature (Celsius) | 149 °C |
| Maximum Operating Temperature (Fahrenheit) | 300 °F |
| Minimum Operating Temperature (Celsius) | -55 °C |
| Minimum Operating Temperature (Fahrenheit) | -67 °F |
| Nominal Weight (Imperial) | 0.059 lb/ft² |
| Product Color | White |
| Product Form | Roll |
Dimensions and Classifications
| Overall Length (Imperial) | 50 yd |
| Overall Length (Metric) | 45.7 m |
| Overall Width (Imperial) | 35 in |
| Overall Width (Metric) | 1 m |
