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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.

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  • Soudal Professional PU Designer Metal Foam Applicator Gun

    Soudal
    $110.98 - $110.98
    $110.98
    $110.98 - $110.98
    $110.98
    In Stock

    Precision dispensing meets jobsite durability with the Soudal Professional PU Designer Metal Foam Applicator Gun (SKU 154478). Built with a rugged stainless metal body and an ergonomic plastic handle, this professional-grade metal gun gives contractors maximum comfort and control when applying canned polyurethane sealants and expanding foams. Fine-tuning your bead size is fast and predictable using the rear adjustable knob, which works alongside a responsive trigger feel and control mechanis...
  • Soudal Soudafoam 24 oz High Expansion Gap Fill Gun Foam, SKU 143726

    Soudal Soudafoam Gap Fill High Expansion 24oz Aerosol Can, Gun Foam - 12 Pcs

    Soudal
    $190.56 - $190.56
    $190.56
    $190.56 - $190.56
    $190.56
    In Stock

    The Soudal Soudafoam 24 oz Gun Foam (SKU 143726) is engineered for contractors handling insulation, sealing, and gap-filling projects where speed, precision, and reliability are critical. This high-expansion polyurethane foam cures quickly and forms a durable, airtight seal that adheres to most common building materials, including wood, concrete, metal, and masonry. It provides excellent resistance to moisture, mold, and mildew, helping maintain energy efficiency and structural integrity in b...

  • Soudal Gun and Foam Cleaner Acetone-Based, 12 oz Aerosol Can - 12 Pcs

    Soudal
    $110.40 - $110.40
    $110.40
    $110.40 - $110.40
    $110.40
    In Stock

    Tackle stubborn, sticky overspray before it hardens with the Soudal Gun and Foam Cleaner (SKU 120319). This powerful, ready-to-use solvent is explicitly formulated for cleaning foam application tools, applicator guns, and valves, ensuring your dispensing equipment stays clog-free and ready for the next job. Packaged in a convenient 12 oz aerosol can—and sold in a cost-effective bulk 12-piece pack—this heavy-duty cleaner utilizes a fast-acting, acetone-based mixture containing 2-Propanone, Iso...

  • Soudal Soudafoam Gap Fill High Expansion 20oz Aerosol Can, Genius Gun - 12 Pcs

    Soudal
    $381.12 - $381.12
    $381.12
    $381.12 - $381.12
    $381.12
    In Stock

  • Soudal Soudafoam Gap Fill High Expansion 12oz Aerosol Can, Genius Gun - 12 Pcs

    Soudal
    $96.96 - $96.96
    $96.96
    $96.96 - $96.96
    $96.96
    In Stock

    Upgrade your jobsite sealing workflow with Soudal Soudafoam Gap Fill High Expansion (SKU 146763). Formulated as a self-expanding, one-component polyurethane foam, this high-output formula is packaged in a 12 oz aerosol can and supplied in a bulk 12-piece quantity case to tackle large-scale structural sealing projects. Made for superior performance, this moisture-curing sealant delivers very high insulation values with dual thermal insulation and acoustic insulation benefits. It exhibits exc...

  • Soudal Soudafoam Gap Fill High Expansion 12oz Aerosol Can, Straw Foam - 12 Pcs

    Soudal
    $96.96 - $96.96
    $96.96
    $96.96 - $96.96
    $96.96
    In Stock

    Soudal Soudafoam Gap Fill High Expansion (SKU 130465) is a professional-grade one-component polyurethane foam designed for heavy-duty sealing, insulating, and cavity filling. Packaged as a convenient 12 oz aerosol can available in a bulk case of 12 pieces, this straw foam system features a moisture curing formula engineered to deliver high volumetric expansion for sealing large gaps, voids, and structural joints. Delivering high-performance thermal insulation and acoustic insulation for sound...
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    Milwaukee M12 10 Oz Caulk Gun

    Milwaukee
    $189.98 - $189.98
    $189.98
    $189.98 - $189.98
    $189.98
    In Stock

    Stop fighting manual caulk guns on heavy sealant jobs. The cordless Milwaukee M12 10 Oz Caulk Gun (SKU 2441-20) harnesses the 12V M12 power platform to drive a massive 400 lb pushing force, effortlessly pushing high-viscosity construction adhesives and caulks out of any standard 10 oz cartridge. Total bead control is right at your fingertips thanks to a responsive variable-speed trigger paired with a multi-position max-speed dial. This combination delivers precise variable pressure control...

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.

Clearance Center

  • Werner Self Trailing Rope Grab with 50% OFF Stainless Steel
    Ships within 1 week
    Ships within 1 week

    Werner Self Trailing Rope Grab with Shock Pack, Stainless Steel

    Werner Fall Protection
    $162.00
    $162.00 - $162.00
    $162.00
    $81.00
    $81.00 - $81.00
    $81.00
    Ships within 1 week

    The Werner Self-Trailing Rope Grab delivers reliable, hands-free fall protection for professionals working at height. Designed for 5/8-inch (16 mm) synthetic rope lifelines, this stainless steel rope grab automatically follows the user’s movement up and down the lifeline, providing smooth mobility and instant locking in the event of a fall. Built from premium stainless steel, the L240002 offers superior corrosion resistance and long-term durability in tough jobsite conditions. The integrated ...
  • Werner 6 ft DeCoil Tie-Back Twin Leg Lanyard, durable fall protection harness with integrated energy absorber, now available at 50% off.
    Save 50% Save %
    Save 50% Save %

    Werner 6 ft DeCoil Tie-Back Twin Leg Lanyard

    Werner Fall Protection
    $415.20
    $415.20 - $415.20
    $415.20
    $207.60
    $207.60 - $207.60
    $207.60
    Only 7 left!

    The Werner Twin Leg Lanyard comes with a 50% offer and is designed to deliver premium fall protection, flexibility, and durability for workers in construction, maintenance, and industrial environments. Featuring tie-back capability, it allows the user to anchor directly to the structure, eliminating the need for a separate anchorage connector. With twin-leg construction, this lanyard offers 100% tie-off — ensuring continuous protection when moving between anchor points. The integrated DeCoil ...
  • Werner LITEFIT™ Small Construction Harness with tongue buckle legs — 50% off.
    Save 16% Save %
    Save 16% Save %

    Werner LITEFIT™ Construction Harness Tongue Buckle Legs Small

    Werner Fall Protection
    $149.25
    $149.25 - $149.25
    $149.25
    $125.00
    $125.00 - $125.00
    $125.00
    10+ in stock

    The Werner LITEFIT™ Construction Harness in half of the price delivers all-day comfort, superior fit, and dependable safety for construction professionals working at height. Designed with Werner’s trusted engineering, this full-body fall arrest harness provides the perfect balance between lightweight comfort and heavy-duty durability. The tongue buckle leg straps allow for easy adjustment and a secure fit, while the built-in back D-ring ensures reliable fall arrest connection. Featuring durab...
  • Werner 50 ft Max Patrol Self-Retracting Lifeline, Galvanized Cable at 50% off
    Ships within 1 week
    Ships within 1 week

    Werner 50 ft Max Patrol Self-Retracting Lifeline, Galvanized Cable

    Werner Fall Protection
    $499.00 - $499.00
    $499.00
    $499.00 - $499.00
    $499.00
    Ships within 1 week

    The Werner 50 ft Self-Retracting Lifeline (SRL) with galvanized steel cable provides reliable fall protection with superior reach and mobility and get 50% offer. Engineered for overhead use, this Class 1 SRL is designed to arrest falls quickly while minimizing impact forces on the user. Built with Werner’s advanced internal braking system, the Max Patrol™ SRL offers smooth deceleration and quick activation, enhancing safety in elevated work environments. The durable galvanized steel cable res...
  • Save 50% Save %
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    Safewaze 11 ft Cable Class A Self-Retracting Lifeline with Snap Hook

    Safewaze
    $149.00
    $149.00 - $149.00
    $149.00
    $74.50
    $74.50 - $74.50
    $74.50
    Only 1 left!

    The Safewaze 11 ft Cable Class provides dependable, compact fall protection for workers at height. Designed for safety, portability, and performance, this Class A SRL features a durable galvanized steel cable and double-locking swivel snap hook to ensure secure attachment in all conditions. Engineered for construction, maintenance, and industrial applications, this self-retracting lifeline offers smooth lifeline retraction, rapid fall arrest, and minimal impact force in the event of a fall. I...
  • Radians Tecona® Smoke Anti-Fog Safety Glasses
    Ships within 1 week
    Ships within 1 week

    Radians Tecona® Smoke Anti-Fog Safety Glasses

    Radians
    $201.24
    $201.24 - $201.24
    $201.24
    $100.62
    $100.62 - $100.62
    $100.62
    Ships within 1 week

    The Radians Tecona offers dependable eye protection with a lightweight and stylish wraparound design. Engineered for comfort and durability, these glasses feature a scratch-resistant smoke lens that reduces glare and eye strain in bright outdoor conditions — perfect for construction, landscaping, or industrial work. The anti-fog coating ensures clear vision even in humid or high-heat environments, while the vented rubber nosepiece and rubber-tipped temples provide a secure, non-slip fit throu...