Intertape ALF300 Aluminum Foil Speed Tape | SAE-AMS-T-23397B

Intertape ALF300 Aluminum Foil Speed Tape | 3 Mil | Boeing BAC D6-34501 | 3M 425 Alternative

Intertape ALF300 is a 3.0 mil dead soft aluminum foil tape — an aerospace-grade speed tape with an aggressive pressure-sensitive acrylic adhesive, trusted by aerospace MRO operations, HVAC contractors, and industrial maintenance teams, and a proven alternative to 3M 425. Approved to Boeing BAC D6-34501 Rev. H and SAE-AMS-T-23397B for aircraft chemical paint stripping masking and PMB blast tape (drystripping) underlay. Self-wound construction means no release liner — fast, waste-free application straight from the roll.

Wondering whether this is the aircraft "speed tape" you're after? See What Is Aircraft Speed Tape? — or compare both foil tapes in our AMS-T-23397B guide.

The dead soft foil conforms easily to irregular and curved surfaces without cracking or lifting, while the acrylic adhesive provides instant, water-resistant adhesion to clean, dry surfaces and adheres to itself where overlapped. UV resistant and rated from −30°F to +325°F, it's built for demanding aerospace and industrial environments — chemical stripping protection, PMB blast underlay, duct seaming, and vapor barrier sealing.

Manufacturer's Certificate of Conformance included FREE of charge.

Key Features of Intertape ALF300 Speed Tape

• 3.0 mil dead soft aluminum foil backing — Highly conformable to irregular and curved surfaces without cracking or lifting
• Aggressive pressure-sensitive acrylic adhesive — Instant, water-resistant adhesion to clean, dry surfaces; adheres to itself where overlapped
• Self-wound construction — No release liner; dispenses directly from the roll for fast, waste-free application
• UV resistant — Maintains integrity during outdoor and aircraft exterior applications
• Broad temperature range — Rated −30°F to +325°F (−34°C to +163°C) for cold-weather and high-temperature applications
• Heat reflection and vapor barrier — Effective heat shielding, reflectivity, and vapor barrier sealing for duct systems
• Aerospace approved — Boeing BAC D6-34501 Rev. H and SAE-AMS-T-23397B for chemical stripping and blast masking
• Proven 3M 425 alternative — Made in the USA; comparable performance at competitive value

What Is Intertape ALF300 Used For?

• Masking for chemical paint stripping of aircraft
• Underlay for PMB blast tape in aircraft drystripping processes
• Electroplating masking of aluminum surfaces
• Heat reflection and dissipation in aerospace and industrial maintenance
• Seaming and sealing fiberglass duct board, sheet metal ductwork, and flexible duct wrap
• Vapor barrier sealing and integrity maintenance in HVAC systems
• Surface protection during painting, stripping, and cleaning operations
• General aerospace, industrial, marine, and appliance applications

Intertape ALF300 Specifications

Available Sizes

• 1" (25mm) x 60 yds — sold as 1 Roll, 3-Roll pack, 8-Roll pack, or Case
• 2" (48mm) x 60 yds — sold as 1 Roll, 3-Roll pack, 8-Roll pack, or Case
• Color — Aluminum (silver). Buy more, save more — case quantities offer the best per-roll pricing.

Product Attributes

Certifications & Approvals

• Boeing — BAC D6-34501, Rev. H
• SAE — AMS-T-23397B
• UL — UL-723 (surface burning characteristics)
• Certificate of Conformance (CoC) — Free of charge. Provided with every order.

Technical Data Sheet

Download the Intertape ALF300 Technical Data Sheet (TDS)

Frequently Asked Questions