$32.95
Holiday Deal
· 49% off
was $64.98
Buy Now, Pay Later
As low as
$8
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Nov 11 – Nov 12
Recently Viewed
At a glance
- Condition
- New
- Model
- FNS500
- Weight
- 11.04 oz
- Color
- Black
- Style
- Barrel
- Power Source
- Manual Winding
- Compatible Material
- Foam sealants or adhesives
Features 6
- PTFE coated, stainless steel canister adaptor, needle and check valve. TEFLON coated gun body and barrel for easy foam canister loading and removal and easier maintenance.
- Accepts Great Stuff Pro, Handi-Foam, Handi-Seal, Touch n Foam and Touch n Seal foam sealants with a screw-on top
- Adjustable foam output knob allows pinpoint dispensing and variable foam bead size control from 1/8" to 3" (0.3 cm to 8 cm). Foam shut off feature.
- Smooth needle nose dispenser tip for use for easier cleaning and for use with plastic straw tube extenders for foaming hard to reach areas or smaller gaps.
- Less foam waste when compared to foam sealants with straw dispensers. No post-dispensing foam drip. Restartable for up to 30 days.
- Available 8-inch extension straw tube (sku: B013X84MT0) and 5-Inch narrow tip extension nozzle (B08B1PPWT8). * 8-inch straw tube requires the 5-inch narrow tip to work.
Description
New 5th Generation model. Now with a smooth needle nose foam dispensing tip for easier maintenance. The newly designed 4” narrow plastic dispensing tip allows for more precise foam dispensing in narrow gaps. Attaching an 8” flexible plastic extension tube to the 4” narrow tip nozzle allows foaming in tight spaces and for extended reach. The Foam N' Seal FNS500 is a premium foam dispensing gun designed for professionals in the weatherization of residential and commercial buildings. The FNS500 offers excellent value and has similar or superior features when compared to other foam gun dispenser brands. The FNS500 has been thoroughly field-tested for over a decade and has proven itself to be a dependable foam dispensing gun. It dispenses consistent foam or adhesive every time and features precision control of foam dispensing for filling small gaps, cracks, and voids. It is also ideal for filling door and window door jamb voids. The polyurethane foam dispenser is designed for long life with thicker gauge metal, and 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 PTFE coated. We use a custom formulated PTFE to improve resistance to cold flow, reduce wear friction, and increase PTFE adhesion, coating stiffness, and surface hardness. The FNS500 is compatible with most single-component polyurethane foam sealants that use a universal screw-on thread adapter on the top of the foam sealant or adhesive canister. Works with Great Stuff Pro Handi-Foam, Handi-Seal, Touch ‘n Foam, Touch ‘n Seal, Hilti, and Todol insulating foam sealants. 5" extension nozzles are available. Search for B08B1PPWT8. All product brand names and trademarks are property of their respective owners and are used on this website for identification purposes only and do not imply endorsement by the trademark owners.
Specs 12
| Color | Black |
|---|---|
| Brand | Foam N' Seal |
| Style | Barrel |
| Item Weight | 11.04 ounces |
| Power Source | Manual Winding |
| Brand Name | Foam N' Seal |
| UPC | 000836904718 |
| Manufacturer | Foamnseal |
| Model Number | FNS500 |
| Manufacturer Part Number | FNS500 |
| Compatible Material | Foam sealants or adhesives |
| Style Name | Barrel |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 11 – Nov 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Works very well, never going back to the disposable cans!
Had to foam around quite a few windows so I needed a better option than the disposable cans which would have cost too much. The foam cans are easily available here or at the big box stores. Gun works as advertised, absolutely no reason to get the more expensive gun they sell at the stores and maybe they are worse if they don't have the Teflon coating. Since the valve is at the end of the barrel, when you release the trigger the foam stops coming out, and this is a super advantage over the disposable cans. Once you get the hang of it, these are really pretty clean to use and no mess is necessary. I bought a bunch of straws (designed for these guns) to attach to the end of the gun. They seemed appealing because they let you get in a smaller crack than the barrel itself. But there are two issues with the plastic straws: 1) when you release the trigger the foam keeps coming out of the straw since it's expanding in the straw itself. This is more of a pain than it might otherwise seem as you really shouldn't get the foam ANYWHERE except the crack. 2) It's more or less impossible to keep the straw on the barrel. Sure if you spray the foam into the air the straw will say on just fine, but by the time you bend it into the crack, or maybe the crack is a little small and the straw rubs on it and then comes off. What a mess when the straw comes off. For a few windows, I held the straw with one hand and the gun with the other, and replaced the straw for each new window. But in the end I stopped doing it, too much risk of damage to windows, walls and floors. It's worth getting a can of cleaner, it will probably last for you lifetime. When changing cans, I manually squeeze a bit out of the cleaner can (just push on the nozzle with your finger) to clean anything around where the can attaches, also using my finger (in a rubber glove of course). Foam has come off easily each time. I let the foam dry on the barrel and then just knock it off, the Teflon coating is the real deal!
...
show more
Reviewed in the United States on February 22, 2020 by K. Maletsky
This is the gun to get!
With this purchase I now have three guns for dispensing foam from canisters. This is the best of the lot, and it cost only $1 more than the cheapest one I have. This gun is all metal. This matters because if you allow the gun to sit too long between uses the first trigger pull will be very difficult. Foam apparently sets up along the shut-off rod or at the very tip and causes the dispensing rod to stick closed. The instructions say that you may reuse the gun with its attached foam canister up to 30 days after its last use. I have gone as long as six months between uses with my other two guns and have not had problems except for the hard trigger pull the first time. It is stiff enough that I am afraid that I might break my plastic gun if I pull hard enough. My solution is to back off the flow control knob and tap the end of the dispensing rod with a small punch. I'm sure that if I continue to do this I will eventually ruin the rod, but that's why I bought this gun - to replace my expensive, plastic, Pageris one. With all metal parts on this gun, I can pull the trigger on this one to get the foam flowing and avoid the extreme measure of using a punch. The plastic Pageris gun is here: Pro Pageris Dispensing Gun This gun will take the following canisters (plus more that have an identical attachment method): * Touch'nSeal (P/N 4004528712) * Great Stuff Pro (P/N 298141) * Handi-Foam (P/N P30115) * Pur Fill (P/N GF01) I cannot comment yet on the effectiveness of the Teflon coating for preventing foam from sticking, but it certainly can't hurt. I always clean the exterior of my guns thoroughly with acetone after each use. If necessary you can unscrew the flow control knob entirely to remove the foam dispensing rod and its spring. This enables you to clean the inside of the gun. Having said that, there should be no reason to require you to clean the inside of the gun if you leave a canister on AT ALL TIMES! If you've emptied one, leave it on until you're ready to install a full one. If you absolutely insist on cleaning the interior of your gun, you can buy a canister of cleaner that's made for the purpose. Each of the brands listed above also sell a cleaner. One brand of cleaner is here: Great Stuff 259205 12-Ounce Gun Cleaner Another note on cleaning: You can remove the uncured foam easily with acetone. Once it's cured it's permanent. I have not yet found any solvent that will dissolve cured foam. (I use the Pur Fill brand.) I disagree with Erich regarding using up a canister. I think his technique may be faulty. When you are dispensing foam you must hold the gun so that the canister is upside down. That is, the gun must be below the level of the canister. This would be the normal way to hold the gun, but sometimes the situation requires some maneuvering to get the foam where you want it. The foam inside the canister is heavier (more dense) than the propellent. The canister does not have a pickup tube to the bottom of the canister, the way a can of spray paint does. If you try to dispense foam while the canister is not on top you will release propellant and not so much foam. If you do this enough you will use up all the propellant and still have unusable foam in the canister. A similar situation arises if you try to use a can of spray paint upside down. I have gone through half a dozen canisters of foam and have never had one fail to empty. This gun comes with a couple of plastic tubes and a couple of plastic nozzles that fit on the end of the dispensing tube. This allows a bit of an extension if needed or a very small opening if you need to get foam inside a very small hole. I haven't used them yet but will keep them handy in case the occasion should arise. Of course you will have to clean them immediately if you want to reuse them. And that is the beauty of this gun and the canisters that support it. You can use a small amount of foam today and do it again tomorrow and next week until you've used it all up. No more do you have to buy a new disposable can of foam for a small job and then buy another can tomorrow. If you need to dispense expanding foam only occasionally this gun/canister system is a great way to do it. This is the highest quality gun I've used and it's sold for a reasonable price. Highly recommended. - Loren Edit: 21 December 2014: I have now had the opportunity to clean set-up foam from the insides of this gun. For anyone who was wondering, you can take this gun completely apart to clean the innards. Use a gun cleaning rod, brushes, and patches to clean the feed tube. Everything else can be scraped clean with a screwdriver or pick. Don't lose the small ball or any other parts that may fall out as you dismantle this gun. Better yet, don't let foam set up inside your gun. This can be avoided if you follow the instructions and NEVER leave the gun without a foam can on it. Even if the can is empty don't remove it until you are ready to replace it. I didn't follow my own advice and within 24 hours the foam was almost completely set up. I have also found that the Teflon coating actually works. Set-up foam will not stick to it and can be removed easily with a fingernail. I disagree with John Sanchez about cleaning the gun every three or four cans. I don't think it's necessary at all unless you allow the foam to set up. I found that my expensive Pageris gun needed cleaning at the same time. I was unable to take that gun apart sufficiently to clean it. I threw it away. Buy this one instead.
...
show more
Reviewed in the United States on February 28, 2014 by Loren
I liked this for several reasons
I liked this for several reasons: convenience, getting into tight-spaces, being able to use a can of foam more than once. It worked very well last Fall over the course of several weeks. When I tried to use it this Fall, it failed to work. I'm not sure why, because the nozzle seems clear--it appears to be a trigger problem. But it was worth the money to get into tight spaces with that long nose, and not get foam all over the place and one's self, and re-use cans of foam. My advice is to buy it when you are ready to do a thorough insulation job (don't break the job up for later.) Then clean it thoroughly and hope for the best next time you want to use it.
...
show more
Reviewed in the United States on January 11, 2017 by C Franks
How did expanding foam become popular without these??!!!
This is the coolest thing ever!! I am starting a whole house sealing project and was dreading using caulk with a hand powered gun and my experience with foam in the disposable can has been less than satisfying. I ran across these on Amazon and the FNS 500 had good reviews so I did it. BTW - I'm a reluctant DIY'er so I look for tools that make the job easy and fun. A couple of things: 1) I'm in the crawl space now and it's difficult to maneuver the gun with that tall can waving around in the stratosphere getting hung up on joists and pipes and wires. This gun has a barbed tip so I attached a short length of 3/16" ID x 5/16" OD vinyl hose and I can get into all kinds of gaps and cracks. Make sure to get a gun with a barbed tip...otherwise you are stuck with whatever the maker provides for an extension. This gun has some straight straws and a small tip. I have not tried them yet. The vinyl tubing is cheap so I just throw it away when I'm done with it. Also, the vinyl tubing can be bent into blind cracks. 2) I am dealing with three large cantilevered sections so I need a long reach to get to the back of it (and there is a lot of air coming in from there.) You can buy a gun with a 36" or 48" barrel (for a lot of money) or do what I did. See the picture. That is a 36" tube stiffened with some 14ga wire (any hardware store will have it.) The only problem is that the foam starts expanding as soon at it exits the tip of the gun so control over the bead is difficult and best. I was hoping to save that extension and clean it out but after about 30 minutes, foam started oozing from the barbed tip. Like I said, this tubing is cheap and can be thrown away. I can make others as needed. 3) Where this gun (and I am sure all of them) really shines is dispensing directly from the tip. The second picture shows beads that I was running this morning. I cannot do caulk this nicely. This is where the extra expense of these guns and the more expensive pro cans really pays off. This will more than pay for itself by the time I am done with my project. If I had been using the straw cans, this would have been a mess. A few tips: 1) Keep a can of solvent and a rag handy while working. I am obsessed with keeping the tip clean as I have read reviews where the guns dried up. 2) If you are attaching a tube on the end, make it as short as possible. The longer the tube, the more uncontrolled expansion happens and you have less control of the bead. Other thoughts: People are raving about the full Teflon gun but I am wondering if it wouldn't be better with a bare metal barb. The tube does tend to come off easily....but that is why you have the solvent and rag handy...smile. I'll try to update later. Maybe when I get to the attic.
...
show more
Reviewed in the United States on January 10, 2016 by SomewhatHandy
At first I thought this was a bad device, I unfortunately had a defective can of ...
At first I thought this was a bad device, I unfortunately had a defective can of good stuff foam (red can-Pro stuff) that didn't mate/seal securely after many tries. I had foam leaking out all over the place from under the can connector and thankfully I kept a trash can nearby which contained the mess. After cleaning the gun, which went very, very easy using acetone and a few rags (this thing cleans very easy if the foam is within a hour or so of being fresh.), I installed a new can of the great stuff Pro-red can, same type, and the gun worked great. I found that it covers about the same area and volume as I normally get with about 4-5 16oz single use cans. It adjusts easily, but takes a little practice to get it right as how much to use. The extension hoses seem to slow the flow quite a bit, but lets you shoot uphill. It seems that the extension hoses are not a very common inside diameter, and the length they come at are about as long as they can be and still work well. I can compare the 16oz single use can to like using a fire extinguisher, and this unit as to using an adjustable caulking gun. It seems to save money on the foam costs but the best feature there is it can be used for a small area over and over all day/week long with just a quick wipe of acetone to clean the tip and handle. The instructions say it can stay on the shelf with can attached for up to 30 days without cleaning it all out. I think it is quite an asset for a bigger job, especially if the job is slow going and there is many smaller applications needed throughout the job. It is well worth the money if you need a option like that...keep a trash can nearby in case you get a bad can of foam. Good Luck
...
show more
Reviewed in the United States on August 3, 2015 by Richie T.
Stopped working during the first use
We installed a can of foam and started foaming in a door frame it worked just fine at first then slowed down and quit working. Acts like there is something blocking the tube. The nozzle does not appear to be removable. So we went to the lumber store and bought a great stuff gun to finish our work. The closest store that carries them is 20 miles away which is the only reason we ordered from Amazon.
...
show more
Reviewed in the United States on June 22, 2024 by Jimmy T.
Best foam gun I could find and at a reasonable price too.
1st revIew (2018), FIRST MODEL REVISION I've had several foam guns of different brands. After finding that my insulation company uses these almost exclusively, I ordered one for the house. This one just works and works well which is not something I could say about other brands that I've used (e.g. Great Stuff). With the teflon coating, it's easy to clean up and it encourages leftover foam to be left on the gun- this helps prevent the foam from curing inside the gun. 2nd review (2020) Since my 1st review, I've been through the original model of this gun (had full teflon coating), one other gun (was so bad I won't even mention the make) and the current revision of this gun (has a brass tip). While I loved my original model, it had a plastic bearing that didn't clean well. This new model (with the brass tip), I really hated at first. The brass tip was just an unnecessary pain in the a** as it was so hard to keep clean. I found that if you use the plastic tips (comes with a few and these are REALLY easy to clean) along with some silicone mold release spray on the tip, it works MUCH better. So, I'm keeping my five star rating. Hint: For those that were complaining of can leaks as you're installing new cans, I found that after removing old can, there was a plastic piece that would separate from the old can to remain in the opening of the gun. Just make sure you can see the ball bearing in the gun and that the opening is clean before you screw a new can in and it'll prevent most leakage issues.
...
show more
Reviewed in the United States on February 9, 2018 by Taking1ForTheTeam
DOES NOT FIT GREAT STUFF PRO
I'm writing this review mostly to notify potential buyers that this DOES NOT FIT GREAT STUFF PRO. when I first purchased the gun it fit GSP. However i recently purchased more GSP & the gun does not fit. From what i understand GSP's can has been changed. Now I'm stuck with these GSP cans unless i want to pay the avg. $65 for a GSP gun. The foam N sael gun also doesn't fit Y'ALL CAN. I hope i can spare others from the frustrating ordeal! I've been through because I really loved my gun. 3 stars is because foam n seal need to remove that this gun fits GSP. Tip: when using any spray foam wear disposable glove & have a small enough rag that fits into a balled up hand (helping to prevent evaporation)apply cleaner to rag. Helps to keep tip open on gun & especially straw & lessens inevitable messes!
...
show more
Reviewed in the United States on April 28, 2026 by Mona L Richardson