Seals cracks, crevices and body seams, plus waterproofs and insulates
The Eastwood Service PlanProtect your purchase with comprehensive coverage24/7 supportNo deductibles, no additional feesParts & labor costs includedTransferable coverage and more
90 day Warranty Included
90 Day Returns + 100% Satisfaction Guarantee
FREE Lifetime Tech Support
The Eastwood Company Warranty
100% Customer Satisfaction Guarantee
At Eastwood we care about your DIY automotive projects and want you to be 100% satisfied with our products. That’s how we’ve done business since 1978.
Warranty periods vary per product and manufacturer.
The warranty period begins on the date the product is delivered.
Warranty refunds and exchanges require proof of purchase.
To obtain warranty coverage, contact Eastwood at 1-800-343-9353 for an RMA number.
FREE Lifetime Tech Support
We're here to help you Do The Job Right.
This product includes FREE Lifetime Tech Support from our U.S.-Based Customer Solutions Team.
Looking for advice on your project or product recommendations? Our in-house Project Advisors have the same passion for DIY automotive restoration as you do. Get advice on your project, personalized product recommendations and answers to your questions. Give us a call or email [email protected].
After stripping a car or repairing a panel you should replace the seam sealer to protect your work from the elements.
Flexible - Will not shrink, harden or crack
Seals cracks, crevices and body seams
Paintable in 30 minutes
Waterproofs and insulates
Eastwood's Brush-On Seam Sealer leaves a factory-like finish and will not crack, harden or sag. Seals cracks, crevices and body seams as well as waterproofs and insulates. Tack dries in 15 minutes and air dries in 1hour. Remains flexible. Gray in color. Can be painted in 30 minutes.
Can be used on:
Firewall
Trunk seams
Fender extensions
Tail light openings
Floor pans
Many other areas
What's Included
30.4-fl.-oz. (1.9 pt.)
Safety Information
always wear eye, skin and respiratory protection when working with chemicals consult MSDS for proper safety warnings
Clean surface with Eastwood's PRE painting prep (10041Z) Apply a bead using a brush or finger. Tack dries in 15 minutes Paintable in 30-45 minutes Clean excess with PRE
Operation Temperature is between -4 degrees F to 158 degrees F.
Rated 5 out of
5 by
Stiffy from
Brush able seam sealerWas able to cover lower door seams and quarter panel pinch seams well. Spread well with an acid/flux brush, and if you want a smooth look I used wax and grease remover on my glove finger tip and smoothed out well. No issues with pin holes vertical or horizontal! Good product thanks!
Date published: 2016-01-12
Rated 5 out of
5 by
Anonymous from
Great protection, user friendlyTried this product to restore the fender well undercoating on my 1979 VW Rabbit Diesel. First can worked perfect. Easy stiff brush application, non-sagging, seals and stays in place and it is thick enough to protect with just one coat. Experienced no pin hole problems and found that if you want a smoother finish than original consistency permits, try adding a little xylol to a side mixture of a small portion of the product until you get a consistency that smooths out more
easily. Thinning, of course, might require additional coats.
Had no reservations ordering a second can to finish the job. Both orders were promptly delivered. Have used other Eastwood products and would recommend them all.
Date published: 2015-11-07
Rated 5 out of
5 by
Restorman46 from
Next best thing to OEM seam sealer but better.I have used these type products in the pass and have had fair results. I started using this product 5 years ago and the results has been excellent every time.
Date published: 2015-08-31
Rated 5 out of
5 by
rubberhead from
great productLove this stuff, use what you need put the lid back on. no fooling with tubes or mixing stuff together. I tape up the edges I want and apply it with a small acid brush, perfect every time
Date published: 2015-08-22
Rated 5 out of
5 by
Anonymous from
Gray gooNever used seamsealer before and i dident care to drop hundreds of dollars for one of those 2 part 2k guns so i decided to try out brushable seamsealer. Seen a bunch of good or decent reviews so i decided to try the eastwood stuff. First off this stuff is tar thick like really thick. They say to use a brush but good luck with that. I just decided to use a narrow putty knife and slather it on the floor seams and in the corners of floorboards. It skins over pretty quick but using a putty knife your able to smooth it out as you apply it so it goes on pretty fast and smooth. I put it on kind of thick in a few spots so they are taking a while to really firm up but on all the thinner areas they have firmed up quite nicely. Thinner areas 3/16 thicker areas 1/4 or so.
Dont have any long term feedback yet but if all the trouble it takes getting it off you is any indication of how well its going to hold up it should be there for a very long time.
Date published: 2015-07-13
Rated 5 out of
5 by
bigmac from
great productGreat product easy to use. Would use again. Would highly recommend
Date published: 2015-07-07
Rated 5 out of
5 by
wyo bucks from
Excellent product!I've used several seam sealers in the past and I really like the way this sealer goes on. You can smooth it out or you can leave the factory style brush marks. Accepts paint real well and dries quickly. It doesn't sag and you can almost do with out the tube type sealer. Almost! It will stiffen up fairly quick on you, but is still workable enough to get the desired finish. Good product at a fair price.
Date published: 2015-04-30
Rated 5 out of
5 by
ScottR from
great productStuff worked perfect for me, I used an acid brush to apply
Date published: 2015-04-22
Rated 5 out of
5 by
riffled from
Brushable Seam SealerI bought this to seal up and finish some patch panels I made for my 69 Camaro. Applies easily, looks good, paint stuck well, yet time will tell how well it holds up. I'm expecting no issues, appears to be a quality product.
Date published: 2015-03-11
Rated 5 out of
5 by
carman944 from
Works like a charm!Have been using Eastwood seam sealer in my restoration shop for years now. It is a little thick but fills in larger gaps that a thinner product would not. I use a 1" brush & the trick is to apply an ample amount of sealer along the seam then move the brush very S L O W L Y. It will smooth out & lay down just like the factory did.
Date published: 2015-03-09
Rated 5 out of
5 by
T Bo from
Worked better an I had hoped.Used for sealing seams under the car and in floor. Just thick enough to work from underneath without sagging. When on well, was easy to control and flow where I wanted it to go. It took paint well. Don't know how well it will hold up over time yet. I would recommend it to anyone.
Date published: 2014-12-22
Rated 5 out of
5 by
DaveC from
Great seam sealer!The brushable seam sealer goes on very easily and sets up relatively quickly and firm. No noticeable shrinkage and no sagging. My only complaint is that it is relatively thick and sets up a little too quickly for smoothing long sections. To smooth out brush marks, I found that moistening my finger or acid brush with SEMsolve or PRE helps flatten brush marks and feather edges without compromising the intended functionality.
Date published: 2014-10-23
Rated 5 out of
5 by
TV 2M8O from
Excellent product... and shelf life!I bought a quart of Eastwood's Brushable Seam Sealer back in 2009 when I started my S&H Gran Torino restomod and just finally got around to using it! I was concerned that the product would have hardened or become unusable after being stored 5 years in an uncontrolled temperature environment for several years, but to my surprise, the sealer was still very creamy and spreadable and flowed very well sealing the underbody floor seams of my Striped Tomato!
Date published: 2014-09-23
Rated 5 out of
5 by
Anonymous from
great productWas easy to use and worked great. I'm new to this type of work but I had no trouble using this, painted over it after an hour
Date published: 2014-05-12
Rated 5 out of
5 by
Anonymous from
easy to use and worked greateasy to use and worked great. was ready to paint over before by 1 hour
Date published: 2014-05-12
Rated 5 out of
5 by
Anonymous from
Excellent product!After restoring several classic cars, ive tried a few different types and brands of seam sealer. Some are too thick and dont lay down well, others dont hold up. Eastwood seam sealer lays out excellent and has held up perfectly! Just bought another quart and i'll be using it on my classic mustang project, thanks!
Date published: 2014-03-30
Rated 5 out of
5 by
Jarrett from
Nice productI applied the sealer using a plastic paddle like applying bondo. I didn't waste a lot. I'm am ordering another can once I get done with this post. Great product....
Date published: 2014-02-02
Rated 5 out of
5 by
Anonymous from
NiceWorks great on those seams you want to look good.
Date published: 2014-01-08
Rated 5 out of
5 by
Anonymous from
Great ResultsUsed tube/calking gun type previously, liked this better, easy to work with (get yourself a bunch of cheap disposable brushes) worked great for my trunk and cowl seams.
Date published: 2013-04-02
Rated 5 out of
5 by
7Dpilot from
Great stuff for the moneyGreat Sealer, Dries fast and you can paint over it. I used it on my cowl and floor pan seams.
Date published: 2013-02-16
Rated 5 out of
5 by
glen 856 from
excellentby far the best i have ever used i highly recommend this product
Date published: 2012-07-15
Rated 5 out of
5 by
bowtie1969 from
excellentQuality product-factory appearance when painted.
Date published: 2011-08-07
Rated 5 out of
5 by
Anonymous from
Great productI have been replacing body panels, the cowl, floor panels, etc, on my '65 mustang. I am very impressed with the quality of the Eastwood Brushable seam sealer. It goes on easy and when dry looks pretty much like the original Ford applied stuff. This is good stuff.
Date published: 2011-05-08
Rated 5 out of
5 by
Anonymous from
Works greatI got this due to a compatability issue with another seam selaer and Eastwood's Rust Encapsulator. This was less money and spread much easier. It dried fast and left me with good results.
Date published: 2011-05-02
Rated 5 out of
5 by
Anonymous from
As AdvertisedThis seam sealer couldn't be easier to use. No mixing - just apply this self-leveling sealer. I use it on floor seams and then use rust encapsulator over top.
Date published: 2011-01-17
Rated 4 out of
5 by
Andy from
Works well.Works well, might need a few brushes. Goes on like chewed bubble gum.
Date published: 2023-01-23
Rated 4 out of
5 by
Jeff from
use a puddy knifeproduct goes on well. not very brushable unless your using a puddy knife. hopefully it holds up. time will tell.
Date published: 2022-07-10
Rated 4 out of
5 by
cptn_majestic from
Simple and effectiveGood price and applies smoothly. My only complaint is the exact same color as the gray epoxy primer, but this is definitely not a deal breaker.
Date published: 2018-04-30
Rated 4 out of
5 by
Ga boy from
Brush on seam sealerBought one can to try it out worked very good so ordered another spreads very nice great finish
Date published: 2018-01-23
Rated 4 out of
5 by
aerofix from
Good productGood product will perform as advertised but found it to be a bit too thick. I thinned it with acrylic lacquer thinner with no ill effects.
When applying to underside of vehicle will the product sag or is it thick enough to not. I'm replacing floor pans and I don't have access to a rotisserie.
Asked by: Dan1
The Brush on Seam Sealer will not sag. It would be a great product for you application.
Answered by: Bob G
Date published: 2019-04-29
Can I use seam sealer over first primer coat?
Asked by: Kevin
This product need to be applied directly to metal.
Answered by: Dakota W
Date published: 2024-02-18
Can this be applied on a painted or primed metal surface?
Asked by: NJYOTA
The seam sealer would have to be applied direct to metal.
Answered by: SeanW
Date published: 2024-02-18
What is the shelf life after the can has been opened and re-closed?
Asked by: Michael
As long as you clean the top of the can and lid, make sure that the lid is on as when the can was new, and keep it in a controlled temperature environment, it should last over 1 Year
Answered by: Bob G
Date published: 2019-02-12
Would this product work on the floor of a tent
Asked by: Brad
Unfortunately this product would not hold up to use in on a tent floor.
Answered by: Scott C
Date published: 2018-10-23
Can you spray your Epxoy primer over this product? Do you have to scuff the sealer if it’s been setting a week before you prime & paint it
Asked by: Bronco1ab
Yes, this can be top coated with the Epoxy primer. You will need to scuff this with a red/maroon scuff pad before applying your primer
Answered by: Kelly H
Date published: 2023-03-29
Would this product seal an aluminum boat between welded aluminum plaques to prevent water from coming in to the boat,and how long would it last?
Asked by: Chopolo11
Unfortunately we have never tested our seam sealer against water pressure for longevity. Our Seam sealers are designed for water simply running over two vehicle seams.
Answered by: Scott C
Date published: 2018-08-13
I plan to use the brushable seam sealer over epoxy primer and then apply 2k ceramic chassis paint. Do i have to wait until the primer is fully cured before applying the seam sealer? Will the 2k ceramic chassis paint work over this seam sealer?
Asked by: JeffP
You will by able to apply seam sealer to our Epoxy after it is dry to the touch. Probably easiest to simply wait 24 hours. Then apply the seam sealer which can certainly be painted over with our Ceramic Chassis paint after just 30 min.
Answered by: Scott C
Date published: 2021-12-25
I want to seal out the water that is getting into the storage compartments on my Minnie Winnie rv, will this work to keep out the rain that usually gets into those bins? I have checked the water tightness on the door seals by spraying a hose directly on i
Asked by: Valjean
While it is possible it would work our testing of this product is simply where two panels of a vehicle are welded together.
Answered by: Scott C
Date published: 2022-09-05
Can this sealer be top coated with rubberized undercoat?
Asked by: Joe Shmo
You can certainly top coat this with rubberized undercoating.
Answered by: S Church
Date published: 2017-11-10
Can this be used as a panel adhesive for a door skin??
Asked by: Vale1991
This could only be used between door skin and inner structure. You need a different product for the physical seam that gets folded over.
Answered by: S Church
Date published: 2017-09-14
What is the maximum gap this product should be used to fill
Asked by: DART
This product is not designed to fill a gap without a backer. You would not want to surpass 1/4 inch thick.
Answered by: S Church
Date published: 2018-11-03
How much is needed for the typical car (inside and outside)?
Asked by: BigBlock
One quart goes a long way and would more than likely get you through the majority of a full restoration.
Answered by: S Church
Date published: 2022-05-04
Is this product silicone base or a polyurethane?
Asked by: Tony123
This is a rubber/ Resin base.
Answered by: S Church
Date published: 2018-12-15
will this product adhere to aluminum?
Asked by: memguy
Seam sealer should be applied to a primed surface. The substrate below the primer wouldn't matter.
Answered by: S Church
Date published: 2018-09-13
Can you powder coat over this seam sealer? Will it hold up to the temp range and will the powder adhere to it.
Asked by: Justin AES
The seam sealer cannot withstand the temperatures necessary to powder coat.
Answered by: S Church
Date published: 2016-10-12
Can you sand this product?
Asked by: TransAmLover96
This is not designed to be sanded.
Answered by: S Church
Date published: 2016-07-05
Will it work to seal seams and rivets on an aluminum boat?
Asked by: MuskyMark
We have never tested this product to that level of holding water out. This is designed to be used on seams of a vehicle that only ever see water run across them.
Answered by: S Church
Date published: 2023-04-22
Is this a weld thru sealer? Should I seal before or after welding? Thanks
Asked by: Dmarkc
You will not want to weld through this sealer. This goes on after welding.
Answered by: S Church
Date published: 2016-05-09
I see this can be used on a Firewall - how runny is it? Will it run or drip when applied on a Firewall?
Asked by: BigBlock
This is the same seam sealer that is sold in the cartridges. It is pretty thick in consistency and should not run on you at all.
Answered by: KHoffnagle
Date published: 2022-11-14
Does it matter what kind of brush I use with this product?
Asked by: jdigs
It will not matter what type of brush you use. Acid brushes are some of the best to apply and spread this product.
Answered by: S Church
Date published: 2016-03-31
Do you have to paint it, or can you leave it as is (like an undercoating)?
Asked by: BigBlock366
It does not require a topcoat if used inside a vehicle, but anywhere on the exterior would require a topcoat.
Answered by: MikeL
Date published: 2021-03-02
What is the widow to paint over this product? (Can I wait 3-5 days to paint over it once it is applied?)
Asked by: EdyJun
Not really a set time. You'll need to make sure to etch a bit and clean before applying primer or paint.
Answered by: SeanA
Date published: 2015-07-14
Can this sealer be painted on waterproof nylons?
Asked by: SHook
Yes it can be applied on a clean prepped surface.
Answered by: SeanA
Date published: 2018-04-03
Does this product have to be applied to bare metal?
Asked by: Huskertbird
This seam sealer can be applied over bare metal or primed/painted surfaces. If applied over a primed or painted surface, it is a good idea to rough the surface with a red scotchbrite pad to improve adhesion.
Answered by: NickC
Date published: 2016-03-07
Is it possible to thin the brushable seal sealer? If so, what can I thin it with? I don't need much thinning, just enough to let it level out a little better.
Asked by: DaveC
This material should not be thinned. For a flowable product, consider using our 2K Self-Leveling Seam Sealer.
http://www.eastwood.com/ew-2k-self-leveling-seam-sealer-cartridge.html
800-343-9353 
Chat 
