3M™ VHB™ Tape 4991B

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FAST AND USE TO USE: Provides strong and long-lasting results on thin and dissimilar materials

AS STRONG AS MECHANICAL FASTENERS: Can replace rivets, welds, screws, or liquid adhesives

COST-EFFECTIVE: Saves time and labor associated with traditional bonding methods that require welding, screwing, drilling, and more

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  • FAST AND USE TO USE: Provides strong and long-lasting results on thin and dissimilar materials
  • AS STRONG AS MECHANICAL FASTENERS: Can replace rivets, welds, screws, or liquid adhesives
  • COST-EFFECTIVE: Saves time and labor associated with traditional bonding methods that require welding, screwing, drilling, and more
  • CLEAN AND SEAMLESS: Offers concealed joining on thin substrates
  • MULTIPURPOSE ADHESIVE: Offers a highly conformable acrylic foam core that provides a good balance of strength and flexibility
  • RELIABLE PROTECTION: Helps guard against the impact of moisture, water, and more
  • INDOOR AND OUTDOOR USE: Ideal for short-term use at a temperature up to 250 °F (121 °C) or long-term use withstanding up to 200 °F (93 °C)
  • KEY CERTIFICATIONS: UL GREENGUARD and UL GREENGUARD Gold Certified, contributing to LEED Credit
  • EXCELLENT BONDING AND SEALING: Features closed-cell acrylic chemistry, which is proven to withstand extreme environments
  • This tape is black

3M™ VHB™ Tape 4991B is a high-performance and double-sided acrylic foam tape with PE film liner that excels on high and medium surface energy substrates. Because of the strength of the bond, this product can replace fasteners, rivets, and welds while helping to save time associated with welding, drilling, and using a liquid adhesive. Whether your operation involves assembly, mounting, fastening, or sealing applications, you can count on the power of secure adhesion across many industries, including signage, electronics, construction, general industrial, and more. Offering design flexibility with its viscoelasticity and high-strength formulation it joins a variety of surfaces, such as aluminum, stainless steel, galvanized steel, composites, plastics, acrylic, polycarbonate, ABS, and painted or sealed wood, and concrete. Engineered for chemical resistance and UV stability, 3M™ VHB™ Tape 4991B can be used indoors or outdoors while providing a wide temperature range for applications reaching a temperature up to 250 °F (121 °C) in short-term use and withstanding up to 200 °F (93 °C) in long-term use. This is your go-to solution for attaching decorative trim, nameplates, logos, electronic displays, panels to frames, and stiffeners to panel operations.

As a part of the 3M™ VHB™ Tape 4941 suite, a line of durable and permanent bonding solutions, 3M™ VHB™ Tape 4991B is designed to excel in challenging applications where two bonded surfaces may expand and contract differentially. In this family of products, a variety of tape thicknesses are available to meet the unique needs of each project as the ideal tape thickness depends on the rigidity and the degree of flatness of the substrate. In many instances, for example, a relatively flat and flexible material can warrant using a thinner tape. Whether your application is indoor or outdoor, involves medium or high surface energy substrates, or requires excellent plasticizer resistance, this bonding system is engineered to improve productivity, reliability, and durability. When looking for a 3M™ VHB™ Tape for your application requirements, there are many aspects to consider, such as substrate, thickness, quantity, expansion/contraction, bond flexibility, cold temperatures, and surface preparation. 3M adhesion experts can guide you through the options and help you select the correct tape for your next project.

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Overall Width (Metric) 18.64 mm
Overall Width (Imperial) 0.734 in
Backing (Carrier) Material Acrylic Foam
Product Color Black
Overall Length (Metric) 32.91 m
Overall Length (Imperial) 36 yd
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.