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3M™ Vent Tape 394, White, 1 1/4 in x 16 1/2 yd, 4 mil, 24 Roll/Case

3M™ Vent Tape 394, White, 1 1/4 in x 16 1/2 yd, 4 mil, 24 Roll/Case

SKU
#7000048755
Part #: 42879
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For industrial/occupational use only. Not for consumer sale or use.

For industrial/occupational use only. Not for consumer sale or use.


3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.


3M™ Vent Tape 394 features a unique, non-woven synthetic backing with high air/gas permeability, good burst strength and solids barrier for minimal voids and less clean up.
More Information
Specification(s)
UPC Code00021200428791
Adhesion Strength (Imperial)12.0
Adhesive TypeAcrylic
ApplicationOutgas Venting in Appliances
Backing (Carrier) MaterialNon-woven
Backing MaterialNon-woven
Backing Thickness (Imperial)4.1 mil
Color FamilyWhite
Elongation at Break18
Maximum Operating Temperature (Fahrenheit)120.0 Degree Fahrenheit
Overall Length (Imperial)16.5 yd
Overall Thickness (Imperial)4.0 mil
Overall Width (Imperial)1.25 in
Performance LevelSpecialty
Product ColorWhite
Product FormRoll
Product Number394
Product TypeTape
Tensile Strength (Imperial)6.0 lb/in
Total Tape Thickness without Liner (Imperial)4.0 mil
Country of OriginUSA
Unit of Use - Customary Net Weight0.268 LBS
Shipping Quantity24.0
Brand3M

Conformable, Non-Woven Backing Offers High Air/Gas Permeability

3M™ Vent Tape 394 is manufactured to meet most typical outgassing requirements for foam-in-place insulation processes in appliance and other industries. The non-woven backing conforms well, providing an effective seal. This unique backing has high air and gas permeability, allowing minimal foaming voids and has good burst strength, which helps reduce clean-up.

Recommended applications

Outgas venting in appliances

Used in Foam-In-Place Manufacturing Process

A common challenge in refrigerator and freezer manufacturing is the venting of insulation foam gasses while keeping foam in place. 3M™ Vent Tape is used to cover openings in the cabinet of refrigerators and freezers during the foam-in-place manufacturing process. It allows air and gases to escape while keeping solids (such as urethane foam) in place. The air-permeable, non-woven backing of 3M™ Vent Tape 394 keeps foam-in-place insulation inside door and appliance cavities, while helping eliminate voids.

Bringing Better Ideas to the Surface through Science and Innovation

In the 3M Industrial Adhesives and Tapes Division, they apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, their technologies help customers like you deliver competitive products to the market faster and more efficiently.


  • Features a unique non-woven porous backing that has high air/gas permeability
  • Meets most outgassing requirements for foam-in-place insulation processes
  • Pressure sensitive adhesive holds strong to a wide variety of surfaces
  • Commonly used for outgas venting in appliance manufacturing