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SKU 7010329770
Legacy SKU 62424084366
UPC 00021200500442
Product Number 49

3M™ Fastbond™ Insulation Adhesive 49 is a fast-drying adhesive that bonds a range fabrics and insulation materials to a range of substrates. The permanent bond provides fast results to keep projects moving ahead. This adhesive’s formula is easy to dispense and apply directly onto surfaces and materials where needed, with no soak-in or yellowing over time.

  • Formulated for HVAC fiberglass insulation and more
  • Offers a fast, aggressive tack for a quick, one-surface bond
  • Permits immediate repositioning while providing long-lasting strength
  • GREENGUARD™ and UL certified
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On it's way to you October 11   


Minimum Order 5 US gallons
Order Increment 5 US gallons
Immense Durability
Multi-Purpose Uses
Fast Shipping
Industry Low Price
Product Dimensions
Imperial Metric
Shipping Dimensions
Weight 44.519 lb
Length 11.5 in
Width 11.5 in
Height 10.5 in
Color Transparent


  1. Is the 3M™ Fastbond™ Insulation Adhesive 49, Clear, 5 Gallon Box suitable for outdoor use?

    The 3M™ Fastbond™ Insulation Adhesive 49 is specifically designed for indoor insulation projects. For outdoor applications, we recommend using one of our exterior-grade adhesives.

  2. Can I apply this adhesive directly on wet surfaces?

    No, it's best to apply the adhesive on clean and dry surfaces. If the surface is too damp or wet, it can interfere with the bond formation and reduce its effectiveness.

  3. What is the recommended temperature range during installation of this product?

    Ideally, you should apply the adhesive in temperatures ranging from 60°F (15°C) to 80°F (27°C) and leave ample time for drying. Lower temperatures may slow down cure times while higher humidity levels can affect bonding efficiency.

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.
Fast-Acting, Long Lasting

3M™ Fastbond™ Insulation Adhesive 49 is a staple in 3M's collection of everyday-use adhesives, widely recognized as essential in the factory.

With its aggressive tack, 3M™ Fastbond™ Insulation Adhesive 49 offers a high initial grab and sufficient open time to position materials correctly. Its high-solids content supports its low soak-in property, providing ample time to align insulation correctly. This attribute also allows for higher coverage than competing adhesives. The combination of fast tack, strong bond, and clean appearance make it ideal for various projects.

Recommended Applications
  • Insulation installation
  • HVAC fiberglass insulation
  • Hanging fabric, felt, foam, and more

3M™ Fastbond™ Insulation Adhesive 49 is an excellent solution for installing insulation. This water-based adhesive is GREENGUARD™ certified and meets California and OTC state VOC requirements.

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