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3M Scotch-Weld Composite Surfacing Film AF 325M & AF 325LS

Composite Materials

3M Scotch-Weld Composite Surfacing Film AF 325M & AF 325LS

SKU: AF 325 M & AF 325LS

Brand: 3M

Pricing on request

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Specifications

Part NumberAF 325 M & AF 325LS
Materialthermosetting epoxy

Description

Low-density epoxy surfacing films that co-cure onto composite prepreg to produce a smooth, void-free, paint-ready surface with minimal pinholes, reducing subsequent fill, fair and sanding operations. AF 325M is the lighter plain surfacing film; AF 325LS incorporates an integral expanded copper-foil mesh that adds lightning-strike protection, which accounts for its extra areal weight. Both are offered in white and blue for visual contrast against the underlying laminate.

Angad Aviation supplies this 3M product with full traceability and documentation — request a quote for current pricing, pack sizes and lead time.

  • Brand: 3M
  • Part No.: AF 325 M & AF 325LS
  • Chemistry: thermosetting epoxy
  • Colors: white and blue
  • AF 325M areal weight: ~0.030 lb/ft2 (147 g/m2) white, ~0.035 lb/ft2 (171 g/m2) blue
  • AF 325LS areal weight: ~0.056-0.059 lb/ft2 (273 g/m2) white, ~0.064 lb/ft2 (313 g/m2) blue
  • AF 325LS integral expanded copper foil: ~0.029 lb/ft2 (142 g/m2) for lightning-strike protection
  • Cure temperature: 250 F (121 C) or 350 F (177 C)
  • Service temperature: -67 F to 300 F (-55 C to 149 C)
  • Roll size: 36 in x 50 yd (typical)

Frequently asked

What are the key specifications?

Chemistry: thermosetting epoxy; Colors: white and blue; AF 325M areal weight: ~0.030 lb/ft2 (147 g/m2) white, ~0.035 lb/ft2 (171 g/m2) blue; AF 325LS areal weight: ~0.056-0.059 lb/ft2 (273 g/m2) white, ~0.064 lb/ft2 (313 g/m2) blue; AF 325LS integral expanded copper foil: ~0.029 lb/ft2 (142 g/m2) for lightning-strike protection; Cure temperature: 250 F (121 C) or 350 F (177 C); Service temperature: -67 F to 300 F (-55 C to 149 C); Roll size: 36 in x 50 yd (typical).

How do I get pricing and lead time?

Angad Aviation supplies this 3M product quote-first — request a quote and our team responds with current price, pack sizes, availability and lead time. Every order ships with full traceability and documentation.

3M Scotch-Weld Composite Surfacing Film AF 325M & AF 325LS (AF 325 M & AF 325LS) — Angad Aviation