3M VHB 4991 Double Sided Foam Tape

3M VHB 4991 is a high-performance double-sided acrylic foam tape designed for strong, permanent structural bonding. It features a soft, highly conformable foam core with a multi-purpose acrylic adhesive, making it ideal for bonding to irregular, textured, or slightly rough surfaces while maintaining excellent durability.

Features:

High-strength structural bonding.
Soft, conformable acrylic foam core (~2.3 mm thickness).
Excellent adhesion to metals, plastics, and painted surfaces.
Superior gap-filling capability for uneven or rough substrates.
Outstanding resistance to UV, moisture, and temperature.
Vibration damping and stress distribution.

Applications:

Rough or uneven surface bonding, Automotive trim and components, Signage and panel mounting, Electronics and appliance assembly, General industrial structural bonding.

Additional Documents:

3M VHB 4991 Double Sided Foam Tape（TDS）

Adhesive Tapes Selection Guide

Technical data

Legal Disclaimer

The values given are typical values, and do not constitute a specification. We recommend testing the suitability of the self-adhesive tape for the designated application or use. Please contact us or e-mail info@ysdiecut.com to determine product availability.

OEM: Delivers tailor-made adhesive tape products and die-cut components under your brand specifications—designed to integrate seamlessly into your end products.

ODM: Tape ODM (Original Design Manufacturing) refers to a service model where designs, develops, and manufactures ready-to-sell adhesive tape products that can be branded and marketed under your own label.

Die cutting tape are available in, jumbo rolls, rolls, sheets, or custom-cut parts, tailored to a wide range of industry standards or customer-specific designs.

3M VHB 4991 Double Sided Foam Tape Manufacturer
Yousan New Materials

Storage
It is recommended to store in a clean, dry place, away from direct sunlight, to prevent packaging damage, and not to store together with volatile solvents. The storage temperature should be 25±10℃, with a humidity of 30–60%.