FNS500 is an alternative to the Great Stuff Pro™ 14 foam dispensing gun, Sharpshooter D™, Sharpshooter X™, Sharpshooter XP™, Fomo Handi-Tool™, and the Pageris™ foam sealant dispenser.

The Foam N’ Seal™ FNS500 insulating foam dispensing gun is used by homeowners and contractors to seal and reduce air-infiltration in residential and commercial buildings to reduce energy costs. The dependable FNS500 spray foam gun applies consistent foam sealant or foam every time and features precision control of foam dispensing for filling small gaps, cracks, and voids. It is also ideal for filling door, window door jamb voids, and pest control by sealing pathway entries to pests.

The polyurethane spray foam dispensing tool is well engineered for long life with quality parts and has a Teflon™ coated gun body, canister adapter basket, and gun barrel. The internal stainless steel needle rod controlling the flow of foam and check valve is also Teflon™ coated. The PTFE coating is specially formulated with premium ingredients to achieve an extremely low coefficient of friction and improves resistance to cold flow or creep, reduces wear friction, and increases PTFE adhesion, coating stiffness, and surface hardness of the gun parts.

The FNS500 has been thoroughly field-tested and continuously been improved over the years. It has proven itself as a quality and dependable workhorse in the insulation/weatherization market space. The FNS500 offers great value and has similar or superior features when compared to other polyurethane foam dispensing guns.

The FNS500 foam canister adapter works with all insulation foam sealant brands with a universal screw-on threaded canister top such as GREAT STUFF PRO™, Touch ‘n Foam™, Touch ‘n Seal™, Owens Corning ProPink™, IPF, Hilti™, Fomo Handi-Foam™, DAP Draftstop™, Todol Pur™, Tytan™, and Versi-Tite™. FNS500 is not compatible with foam products that use a screw-on plastic straw for dispensing foam.


■ Comparable and in some cases surpass various foam dispenser guns brands on the market in terms of features and benefits
■ Premium gun engineered with thicker gauge metal and quality parts for long gun life
■ TEFLON™ coated stainless steel canister adaptor, needle and check valve
■ TEFLON™ coated gun body and barrel for easy foam canister loading and removal
■ Adjustable foam bead control allows variable foam bead size control
■ Foam shut off feature
■ Barbed dispenser tip for use with plastic straw extenders for hard to reach areas.
■ Less foam waste compared to straw dispensers
■ No post-dispensing insulation foam drip
■ Restartable for up to 30 days

■ The FNS500 canister adapter works with all single-component polyurethane foam sealant or foam adhesive brands with a universal screw-on threaded canister top such as GREAT STUFF PRO™, Touch ‘n Seal™, Touch ‘n Foam™, IPF, Owens Corning ProPink™, Hilti™, Fomo Handi-Foam™, Todol Pur™, DAP Draftstop™, Tytan™, and Versi-Tite™.  The FNS500 is not compatible with foam sealant and adhesive products that use a screw-on plastic straw to dispense foam.


■ 12.75″ Length
■ 8.5″ high
■ 11.1 oz
■ Includes two 8″ long flexible plastic straw tubes for extended reach and two 2” narrow tip plastic nozzles for fine foam dispensing. Additional 8″ plastic straws and 2″ narrow tip nozzles are available for purchase via our  online store

Optional 8″ plastic extension straw tubes (sold in pack of 5)
Optional 2″ narrow tip nozzle (sold in pack of 10)

**All product brand names and registered trademarks are property of their respective owners and are used in this website for identification purposes only and does not imply endorsement by the registered trademark owners.

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