Product Introduction
We developed 3M™ Scotch-Weld™ Structural Core Splice Film AF 3028 as a low density, thermally expanding core splice adhesive film for filling mismatched areas or reinforcing and splicing honeycomb core. With its expansion rate, this core splice film can effectively join honeycomb core of differing cell sizes.
We balance 3M™ Scotch-Weld™ Structural Core Splice Film AF 3028 properties to provide excellent performance with easy-to-use shop handling characteristics. Our heat-curing, easy handling film is designed to meet numerous customer specs in aerospace manufacturing. Its expansion rate allows for successful joining of honeycomb core of differing cell sizes. Please refer to the Tech Data Sheet for specific information.
We formulated 3M™ Scotch-Weld™ Structural Core Splice Film AF 3028 to expand during cure for effective void filling and core splicing and it cures nicely through a range of temperatures, from 250°F (121°C) to 350°F (176°C). This variable cure rate combined with the film’s easy handling gives you flexibility to design efficient processes. Even at slow heat up rates as low as 0.5°F/minute, AF 3028 still reaches full expansion. Its low sag properties and low volatile loss during cure can help provide an excellent solution for mismatched areas or reinforcing and splicing honeycomb core applications. It provides high performance from -67°F to 350°F (-55°C to 176°C) to ensure a reliable service life.
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Enabling efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants, surface protection products, and composite resins that effectively reduce costs on multiple fronts. Professionals across the industry know the numerous advantages of 3M Aerospace. Our brand is widely recognized for the highest standards of quality and performance, adding value to the final results. By engineering reliability, longevity, and value into all of our products, we have a history of saving money by reducing waste, rework, and time.
3M™ Scotch-Weld™ Structural Core Splice Film AF 3028 Features
- Variable curing temperature from 250°F (121°C) to 350°F (176°C) helps streamline production
- Expands during cure for void filling and core splicing
- Low density filler maintains volume against shrinkage
- Low sag formula
3M™ Scotch-Weld™ Structural Core Splice Film AF 3028 Applications
- Filling mismatched areas in honeycomb core structures
- Reinforcing and splicing honeycomb cores of differing cell sizes
- Aerospace composite manufacturing and repairs
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.
| Adhesive Type | Epoxy |
| Factory ISO Certification | No ISO Certification information available |
| Maximum Cure Conditions (Celsius) | 177 °C |
| Maximum Cure Conditions (Fahrenheit) | 350 °F |
| Maximum Operating Temperature (Celsius) | 176 °C |
| Maximum Operating Temperature (Fahrenheit) | 350 °F |
| Minimum Cure Conditions (Celsius) | 121 °C |
| Minimum Cure Conditions (Fahrenheit) | 250 °F |
| Minimum Operating Temperature (Celsius) | -55 °C |
| Minimum Operating Temperature (Fahrenheit) | -67 °F |
| Nominal Adhesive Thickness (Imperial) | 50 mil |
| Nominal Adhesive Thickness (Metric) | 1.27 mm |
| Product Color | Off White |
| Product Form | Roll, Sheet |
| Storage Environment | Freezer Storage |
Dimensions and Classifications
| Overall Length (Imperial) | 24 in, 325 in |
| Overall Length (Metric) | 8.3 m, 610 mm |
| Overall Width (Imperial) | 1 in, 1.25 in, 10 in |
| Overall Width (Metric) | 25.4 mm, 32 mm, 254 mm |
