STK supplies Genuine 3M Aluminum Foil Tape 427, the definitive high-performance solution for critical industrial thermal management, aerospace-grade shielding, and severe chemical isolation. Composed of a premium 2.8-mil (0.07mm) dead-soft aluminum foil backing paired with a highly engineered, transparent acrylic adhesive system and a stable easy-release paper liner, this tape offers exceptional conformability. It forms an immediate, permanent environmental bond on both smooth and irregular metallic, composite, and synthetic surfaces.
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Key Features & B2B Benefits
For aerospace engineers, commercial HVAC contractors, and electroplating plant procurement managers, 3M™ Aluminum Foil Tape 427 delivers an impenetrable, fire-safe, and chemically non-reactive protective armor across punishing operating conditions:
Aerospace-Grade Thermal Shielding
Reflects intense heat away from sensitive wiring looms and composite structures. The highly conductive dead-soft aluminum matrix spreads heat uniformly across its surface, eliminating localized hot spots and keeping critical electronic bays dark and cool.
01
Chemical Paint-Stripping Defense
Formulated to function as a dense, unyielding chemical barrier. The thick aluminum foil structure forms an impenetrable wall against aggressive chemical solvents, industrial paint-stripping acids, and alkaline electroplating baths, preventing under-film chemical seepage.
02
Flame Retardant Compliance (FAR Approved)
Meets strict industrial and aviation flame-resistant standards. It provides a dependable, self-extinguishing physical barrier that will not support combustion paths, ensuring total fire safety compliance inside high-density vehicle and building interiors.
03
Ultra-Low Moisture Vapor Transmission Rate
The solid metallic foil backing is completely impermeable to gases, liquids, and moisture. It acts as an elite sealing barrier that permanently stops humidity ingress, rust generation, and galvanic corrosion inside industrial seams.
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Technical Specifications
|
Adhesive Type |
Acrylic |
|
Application |
Exterior Seams & Joints, Heat Shielding, Interior Seams & Joints, Painting & Depainting, Refrigerator and Freezer Coil Attachment, Sealing HVAC & Duct Work, Sealing Plate Edges Against Solvent Penetration, Shielding, Shielding From Engine Heat, Wiring Harness Attachment |
|
Backing (Carrier) Material |
Aluminum Foil |
|
Backing (Carrier) Thickness (Imperial) |
2.8 mil |
|
Backing (Carrier) Thickness (Metric) |
0.07 mm |
|
Backing Material |
Aluminum Foil |
|
Brands |
3M™ |
|
Elongation at Break |
6% |
|
Industries |
Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military, Military & Government, Specialty Vehicles, Transportation |
|
Maximum Operating Temperature (Celsius) |
149 ℃ |
|
Maximum Operating Temperature (Fahrenheit) |
300 ℉ |
|
Minimum Operating Temperature (Fahrenheit) |
-65 ℉ |
|
Primary Liner |
Easy Release Film |
|
Primary Liner Thickness (Imperial) |
3.1 mil |
|
Primary Liner Thickness (Metric) |
0.08 mm |
|
Product Color |
Silver |
|
Smallest Saleable Unit |
Roll |
Primary Aviation & Heavy Industrial Application Fields
Aerospace Paint-Stripping Masking: Protecting airplane windshield seals, composite wings, delicate copper skin structures, and high-value landing gear assemblies from aggressive chemical paint-strippers during commercial aircraft overhaul processes.
Thermal Management & Heat Reflection: Shielding wiring looms, fiberglass conduits, plastic fluid tubing, and structural interior components from radiant heat sources inside engine compartments and aerospace fuselages.
Heavy Chemical Electroplating Masking: Acting as an impenetrable chemical stop-off mask on complex metal hardware submerged inside caustic acid plating baths and anodizing tanks.
Extreme Thermal Balance Conductance: Serving as an efficient thermal coupler to distribute temperature evenly across heating/cooling panels in commercial refrigeration units and specialized thermal transfer instruments.
High-End HVAC Vapor & Moisture Sealing: Sealing seams and connections on high-pressure fiberglass duct boards and sheet metal air ducts inside cleanroom environments to block air leakage and vapor moisture penetration.
STK Custom Converting Power: Liner-Stabilized Slitting & Die-Cut Sheets
Pure dead-soft aluminum tape can easily wrinkle or tear if handled improperly during conversion. Because 3M™ 427 features a high-grade paper release liner, STK unlocks maximum processing accuracy for your factory line:
Liner-Stabilized Roll Slitting to the Millimeter: We utilize automated circular blade slitters to cut genuine 3M™ 427 master logs into any exact customized width layout (e.g., narrow 6mm tracks for localized circuit shielding, or extra-wide 150mm strips for aircraft panel masking) with perfect, burr-free roll edges.
Custom Die-Cut Foil Shapes & Precision Sheets: Utilizing our high-precision flatbed die-cutters, STK converts genuine 3M™ 427 into pre-cut masking sheets, customized circle dots, and complex structural border masks delivered on a continuous matrix roll or individual sheets, optimizing your pick-and-place application speeds.
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