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Nashua 314CRT

Nashua 314CRT Cooler Repair Tape [Refrigeration Foil Tape]

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    View "Full Pricing Table" below for detailed pricing and additional sizes!
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    4 in. x 15 yds.
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Before ordering, please read the "Product Description & Specs" tab content for more information about this item.

Product Description

Nashua 314CRT Cooler Repair Refrigeration Foil Tape is a superior choice for your refrigeration repair needs, saving you both time and money. Nashua 314CRT is used to seal seams, cracks, and corners against air leakage for walk-in refrigeration units, refrigerated display cases and trailers, industrial coolers, and more. In addition, you can use this tape for sealing and patching insulation cladding and jacketing. Using this tape extends the life of your unit by avoiding expensive replacements and provides efficiency by sealing cold air leaks.

The embossed foil laminate backing of Nashua 314CRT Cooler Repair Refrigeration Foil Tape provides excellent conformability and resists ultra-violet (UV), mold, and moisture. The all-temperature acrylic adhesive of Nashua 314CRT withstands very cold and very hot application and operating conditions. Installation is made easy with an excellent instant quick stick and adhesion in cold, moist conditions.

Nashua 314CRT Cooler Repair Refrigeration Foil Tape is tested in accordance with UL 723 and meets flammability and safety requirements for use in refrigeration appliances.

Features and Benefits

  • Excellent conformability to hold corners.
  • Zero permeability - provides a superior vapor barrier
  • Resists mold, moisture, and mildew
  • Tough, puncture-resistant laminate backing
  • Quick stick
  • Excellent adhesion in cold, moist conditions
Made in the U.S.


Technical Information

Nashua 314CRT Cooler Repair Tape
  • Standards Met: Tested in accordance with UL723, contributes toward satisfying EQ Credit 4.1 (Low Emitting Materials) under LEED
  • Carrier/Backing: embossed foil laminate
  • Adhesive: acrylic   How are adhesives different?
  • Release Liner: white kraft paper
  • Thickness: 10.2 mils (carrier, adhesive)   What is mil thickness?
  • Adhesion: 100 ounces per inch (to stainless steel test panel)
  • Tensile Strength: 70 pounds per inch (longitudinal)
  • Service/Operating Temperature: -30°F to 270°F
  • Application Temperature: -25°F to 248°F
  • VOC Content: 30 g/L
Note: Specifications are those given by manufacturers and are not tested for accuracy.

Alert Roll 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).

Download Datasheets

Download Datasheets

The following downloads are available for this product:

Download Safety Data SheetDownload Technical Data Sheet

314CRT Standard sizes


4 in. x 15 yds.

314CRT/ 41512

Single Roll (1-11 Rolls)

1 - 4 Cases (12-59 Rolls)

5 - 9 Cases (60-119 Rolls)

10+ Cases (>= 120 Rolls)


a 5% discount

a 6% discount

a 8% discount





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.

Question & Answers

User Reviews

[ viewing reviews 1 through 1 of 1 total ]
Rhonda H. Verified Buyer May 16, 2018
Cooler tape
Nashua 314CRT Cooler Repair Tape [Refrigeration Foil Tape]
Great stuff sticks great
Nashua 314CRT Cooler Repair Tape [Refrigeration Foil Tape]
Made in the USA
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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