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Foam Fillers

Designed for professionals, our expanding foam filler is ideal for sealing, insulating, and filling gaps in concrete, wood, drywall, and more. Whether you're working on new builds or repairs, our range includes PU foam sealant, spray foam gap filler, and polyurethane expanding foam for high-performance results. With options like gun grade expanding foam and aerosol spray foam insulation, these solutions ensure airtight, watertight seals across commercial and residential projects.

  • Milwaukee M12 10 Oz Caulk Gun

    Milwaukee
    Original price $189.98 - Original price $189.98
    Original price
    $189.98
    $189.98 - $189.98
    Current price $189.98
    In Stock

    Features Up to 400 lbs of pushing force Variable speed trigger and max speed dial for complete control 0-28 IPM dispensing rate Interchangeable quick-change carriage design for converting material types Specifications Powered Tool Power Source: Electric - Cordless Cordless / Corded: Cordless Variable Speed: Yes Maximum Speed (in/min): 28.0 Minimum Speed (in/min): 1.0 Maximum Force (lbs): 400.0 Color / Finish: Red/Black Seal Puncture Tool: No Spout Cutter: No Capacity: 10 oz Variable Press...

Professional-Grade Sealing Solutions for Construction, Insulation, and Repair


  • PU Foam Sealant for Tight Seals
  • Expands quickly upon application to seal cracks, joints, and seams, preventing drafts and water infiltration. It bonds strongly to wood, concrete, brick, and metal, ensuring lasting performance in all environments.


  • Spray Foam Gap Filler for Versatile Applications
  • Ideal for sealing around windows, doors, and electrical penetrations, this foam conforms to irregular shapes and ensures full coverage. It enhances thermal insulation and minimizes energy loss in both commercial and residential spaces.


  • Polyurethane Expanding Foam for Strong Bonding
  • Creates a high-density, rigid structure once cured, offering a secure and durable seal that withstands temperature shifts and moisture. It's ideal for high-demand applications in construction and industrial repairs.


  • High Expansion Spray Foam for Large Voids
  • Perfect for filling wide gaps, cavities, and hard-to-reach areas, this foam rapidly expands to cover more surface area with less product. It offers a clean finish with minimal shrinkage or sagging after curing.


  • Foam Filler for Concrete and Structural Gaps
  • Specifically engineered to bond with masonry and concrete, this foam resists cracking and deterioration over time. It supports structural integrity while blocking out pests, moisture, and air leaks.


  • Spray Foam Applicator Gun Compatibility
  • Designed for use with a spray foam applicator gun, it provides precise dispensing, reduces product waste, and ensures professional-grade finish with clean lines and even fill in every application.



Frequently Asked Questions About Foam Fillers


Can I use spray foam gap filler around windows?

Yes, PU foam sealant works well around window and door frames with controlled expansion.


Does polyurethane expanding foam resist moisture?

Yes, it creates a water-resistant barrier once cured, ideal for indoor and outdoor use.


What’s the benefit of gun grade expanding foam?

Gun grade expanding foam offers more precise control and less product waste during application.


Can foam filler be used on concrete surfaces?

Absolutely—our foam filler for concrete bonds effectively with masonry and fills structural voids.


Do I need a special tool to apply the foam?

For best results, use a spray foam applicator gun with gun-grade products for cleaner, controlled application.