3M™ Scotch-Weld™ Composite Surfacing Film AF 325 M, Blue

Part Number AF 325M3M Product Number AF 325M
Products
  • Excellent for surfacing composite parts
  • Available in both white and blue to provide color contrast to underlying composite prepreg
  • Co-cure compatible with most epoxy composite prepreg systems
  • Provides a smooth surface with minimal pinholes and other surface imperfections
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Specifications
Attribute Name
Value
Adhesive Type
Epoxy
Application
Surfacing
Brand
Scotch-Weld™
Color Family
Blue
Cure Rate
1 Hour
Cure Temperature
250/350 Degree Fahrenheit
Maximum Operating Temperature (Celsius)
149 Degree Celsius
Maximum Operating Temperature (Fahrenheit)
300 Degree Fahrenheit
Minimum Operating Temperature (Fahrenheit)
-67 Degree Fahrenheit
Nominal Weight
0.035 lb/ft²
Overall Length (Imperial)
50 yd
Overall Length (Metric)
33 m, 46 m
Overall Width (Imperial)
36 in
Overall Width (Metric)
1 m
Product Color
Blue
Shelf Life
6 Month
Storage Environment
Freezer Storage
Details
  • Excellent for surfacing composite parts
  • Available in both white and blue to provide color contrast to underlying composite prepreg
  • 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)

3M™ Scotch-Weld™ Composite Surfacing Film AF 325 M, Blue 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.

Peeling AF 325 from liner prior to application
Remove the paper liner from the film, leaving poly liner to minimize contamination and provide best handling characteristics for conformability
It's About the Surface
3M™ Scotch-Weld™ Composite Surfacing Film AF 325 M, Blue 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 M, Blue 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 M, Blue 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.

Our Best for Your Best
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.