
Specifically formulated for thermal insulation in HVAC glass fiber applications.
Quick and strong adhesion for fast, single-sided bonding
Allow for immediate repositioning while providing enduring strength.
Certified by GREENGUARD™ and UL
3M™ Fastbond™ 49 Insulating Adhesive is a quick-drying adhesive that bonds various fabrics and insulating materials to a wide range of substrates. The 3M adhesive offers long-lasting stickiness for rapid bonding, ensuring smooth project progress. The adhesive formula is easy to spray and can be directly applied to the required surface and materials without absorption or yellowing.

Adhesives can bond fabric and insulating materials to wood, metal, and other materials.
Quick fix, one-sided application
3M™ Fastbond™ Insulating Adhesive 49 is a staple of 3M's main products, an essential daily adhesive for factories, and widely recognized.
3M™ Fastbond™ Insulating Adhesive 49 offers superior adhesion for excellent initial bond strength and ample open time for precise positioning. The high solid content helps achieve lower permeability, giving you ample time to align insulating materials. Coverage is superior to competing adhesives. Fast setting, strong bonding, and clean appearance make it the ideal choice for a variety of projects.
Recommended Applications
Insulation material installation
Air Conditioner Insulation with Glass Fiber
Hanging fabrics, felt, foam, and other materials
Ideal choice for thermal insulation applications
3M™ Fastbond™ Insulating Adhesive 49 offers a clean and cost-effective solution for installing thermal insulation materials. This water-based adhesive is GREENGUARD™ certified and meets California and OTC VOC requirements.






























