Polyken 345

Polyken 345
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Electrical Tapes
Tapes for Scrapbooking

Polyken 345 Premium Self-Wound Aluminum Foil Tape [UL / FAR certified]

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  • Quantity
    View Full Pricing Table
    View "Full Pricing Table" below for detailed pricing and additional sizes!
  • Color
  • Roll Size *
    2 in. x 60 yds.
  • Price
    $ Price/photo will update once color & size have been chosen.
Before ordering, please click on the "Product Description & Specs" tab below for more information about this item.

345 Standard sizes


2 in. x 60 yds.

Actual Size: 48mm x 55m

345/ 26024

Single Roll (1-23 Rolls)

1 - 4 Cases (24-119 Rolls)

5 - 9 Cases (120-239 Rolls)

10+ Cases (>= 240 Rolls)









Nominal Tape Widths vs Actual Widths

Nominal vs. Actual Widths Zoom In

Tape rolls are cut to standard tape industry metric widths of approx. 24mm per 1-inch of nominal width ordered. As a result ACTUAL tape widths are normally 5% narrower than the NOMINAL width shown in inches. Examples:

  • 1" Nominal width = 15/16" (24mm) Actual width
  • 2" Nominal width = 1-7/8" (48mm) Actual width
  • 3" Nominal width = 2-13/16" (72mm) Actual width

Note that tape rolls are NOT guaranteed to be splice-free.

Product Description

Polyken 345 Premium Self-Wound Aluminum Foil Tape is a heavy-duty dead soft aluminum foil tape used for sealing and masking of aircraft. It provides a barrier to air, moisture and corrosion and it acts as a heat shield to minimize heat transfer. Polyken 345SW features a self wound construction so it has a smooth and easy unwind and no release liner minimizes waste. It is conformable for irregular surfaces and contours and provides an excellent bond to most surfaces. The acrylic adhesive coating on the tape is solvent resistant and has excellent high temperature performance. It also provides clean and easy removal with no residue from most surfaces.

Other application uses include: speed tape; window mask to protect aircraft canopies, windshields, and passenger window surfaces from crazing or hazing during paint stripping operations; heavy duty vapor barrier sealing for sheet metal, flexible, and fiberglass duct systems; insulation seal, patch, and repair; composite repair and manufacturing; masking tape in paint stripping and electro-plating applications; heat shielding and elimination of 'hot' spots in industrial maintenance applications; condenser and evaporator fastener in the appliance and refrigeration industry; diversion trough for wash-off of paints and chemicals during stripping and painting process.

If your order will not be for a full case and you require certificate of conformance documentation to ship with your order please see our policy at http://www.findtape.com/customer/help.aspx#p4 so that the proper request (and charge) can be made at the time the order is placed.


Technical Information

Polyken 345 Premium Self-Wound Aluminum Foil Tape
  • Adhesive: acrylic   How are adhesives different?
  • Carrier/Backing: aluminum foil
  • Thickness: 5 mils (carrier, adhesive) 3 mils (carrier)    What is mil thickness?
  • Adhesion: 68 ounces per inch (to stainless steel)
  • Tensile Strength: 26 pounds per inch (longitudinal)
  • Service/Operating Temperature: -40°F to 350°F
  • Elongation: 3%
  • Certifications: FAR 25.853(a), SAE AMS-T-23397B (supercedes MIL-T-23397A & B), L-T-80B, UL723
  • Core: 3" diameter
Note: Specifications are those given by manufacturers and are not tested for accuracy.

AlertRoll Sizes/Widths:

Please note that tape rolls are NOT guaranteed to be splice- free. Tape rolls are typically cut to standard tape industry metric-cut sizes - or approx 5% narrower than the nominal size (i.e. 24mm per 1-inch of nominal width ordered).

Please contact us to inquire about pricing for full-cut widths (e.g. a 6 inch roll cut to exactly 152mm instead of 144mm).

Download Datasheets

Download Datasheets

The following downloads are available for this product:

Download Product Data Sheet
Polyken 345 Premium Self-Wound Aluminum Foil Tape [UL / FAR certified]
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
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