Free shipping on orders over $99.99! Don't miss out!
$45.63 Out of Stock
Interlux Watertite Epoxy Filler
$45.63Out of Stock
Interlux Watertite Epoxy Filler
Ask a Question
4.7
Based on 19 Reviews
  • 5 Star

    79%

  • 4 Star

    16%

  • 3 Star

    5%

  • 2 Star

    0%

  • 1 Star

    0%

Interlux Watertite Epoxy Filler Customer Questions and Answers

10 of 14 Questions

Question

I have a few small areas below the water line on a 16' Bass Boat that are leaking to a point that the bilge pump will not shut off. Will this product seal these places?

Asked on 03/20/2016 by Robert Eder

Top Answer

Yes, it will. It is good for below the waterline. You'll probably want to paint over it with a barrier coat like interlux 2000E. You could also just paint epoxy resin over it. It's a great product, and very easy to work with.

Answered on 03/20/2016 by CARL DIRKES
See More Answers (8)

Answer

No. Sink your boat and get a new one.

Answered on 03/20/2016 by JOHN LAING

Answer

Is your transom glass over wood? If there is a lot of movement there, you may need to use some fiberglass cloth and west system epoxy to cover the transition from the hull and the transom.....good luck with it! We've done a lot of boat repair-if you need any more help we will do what we can to share information. Judi and Brent

Answered on 03/21/2016 by JUDI JUDY

Answer

What is the boat made from? This works great on a fiberglass hull, but it had to be dry and have all of the old bottom paint stripped and sanded leaving a clean hull. Then we used 5 coats of Interprotect 2000 over it to insure a tightly sealed bottom. The boat was covered in blisters and now it looks like a new boat.

Answered on 03/20/2016 by JUDI JUDY

Answer

Thanks for your help Carl. I just want to make sure I get the right stuff. Have a good one!

Answered on 03/20/2016 by Robert Eder

Answer

Sorry about that JUDI. It is a Fiberglass bass boat. It has several places leaking where the rear of the hull meets the transom. Thanks for your help and have a great day!

Answered on 03/20/2016 by Robert Eder

Answer

If your talking about a glass boat with 1/4 inch or less holes the answer is absolutely if the holes are larger than that you will likely need to use biaxial fiberglass glass and a polyester laminating resin ( with hardner but no wax). Boat works today has several videos on u- tube that are very good and it's really a pretty simple fix. Remember you will need to use a wax inclusive gelcoat to finish the project as fiberglass alone is very susceptible to the UV Rays of direct sunlight.

Answered on 03/21/2016 by Ron Hess

Answer

I believe this product is more of a finishing/fairing compound. In my opinion the best fix would be west system 105 resin and hardner with 1708 biaxial fiberglass.. As the epoxy is waterproof and the fiberglass will add some strength back to it. Unless it's a aluminum hull then I believe the process would be quite different.

Answered on 03/20/2016 by KEVIN MILLER

Answer

Barrier coat will no fix leaks of that size it is for the prevention of osmosis you need to repair the leak structurally first the fair with water tire then barrier coat then bottom paint

Answered on 02/12/2018 by Capt. Dave
Answer Question

Question

Do I need to use an epoxy resin first to seal any exposed fiberglass and can I embed new fiberglass mat with this product?

Asked on 06/06/2018 by BGIII from Michigan

Top Answer

This product is just a filler, if you need to do structural or fiberglass repairs, use the appropriate epoxy system and cloth for the task. Glass matt is not necessarily the right fiberglass material to use for epoxy as it does not have styrene to break down the binder and wet out as easily.

Answered on 06/21/2018 by JD Tech Associate
See More Answers (4)

Answer

I've always used epoxy resin first and then applied this product.

Answered on 06/06/2018 by bhunter

Answer

The fiberglass must be set in either epoxy or resin then the filler is used to smooth out the surface afterwards. I recommended using epoxy vs polyester resin. You will also need to prime the filler once it is faired as all fillers will absorb moisture until sealed.

Answered on 06/06/2018 by ml-bfs

Answer

This is a pretty high viscosity product. I wouldn't try to embed any mat with this stuff. Good luck!

Answered on 06/07/2018 by sdstevenspe

Answer

I've only used this product as a filler. If fibers need replaced, I'd use a thickened epoxy resin to embed the cloth, then use the Watertite filler Before applying any fillers the area should be sanded and cleaned with pure grain alcohol, then primed with Awlgrip 545 or equal. I've yet to use Watertite to embed fibers because it's too thick.

Answered on 06/06/2018 by jneilson
Answer Question

Question

what coler is it?

Asked on 03/18/2012 by Undisclosed

Top Answer

this is a two part compound that mixes to a light blue color when properly mixed. I am currently restoring a 1959 chris craft sportsman and I am using this as part of the interprotect system

Answered on 05/15/2012 by GEORGE FAHAD
See More Answers (4)

Answer

It's light blue.

Answered on 03/20/2012 by THOMAS ZAULI

Answer

The epoxy dries to a light green color similar to a teal green a little bit lighter than the green in the label. Pricey but great stuff !!!

Answered on 03/22/2012 by MICHAEL SEKELA

Answer

The color is a light blue similar to original Crest toothpaste. I took a picture if interested. BS

Answered on 04/09/2012 by BRADLEY OBLAK

Answer

It is light blue. I have used this extensively on my project and this is the best marine filler EVER.

Answered on 03/20/2012 by SEAN WHITE
Answer Question

Question

Is this sand able and paint able?

Asked on 05/05/2016 by Undisclosed

Top Answer

Yes worth every penny

Answered on 05/05/2016 by MICHAEL SEKELA
See More Answers (3)

Answer

Cures in stages. Very sandable after Six hours but very hard when fully cured. Using a primer is recommended when painting.

Answered on 05/06/2016 by JOEL HORNE

Answer

It is sand able, however I recommend sanding within 24 hours. It gets pretty hard after that and much harder to sand.

Answered on 05/08/2016 by Larry Whited

Answer

Yes, it is, but under water you would also use waterproof epoxy before applying anti fouling

Answered on 05/05/2016 by EDUARDO SANTIAGO
Answer Question

Question

Can this be used to fill the gaps I have between my keel and my hull? My keel has been sealed to the hull with 5200, but I have some large gaps front,back, and small gaps that need fairing on the port and starboard sides of my keel. My aft keel area gap is like almost around an inch half wide, and an inch deep void with this material hang in an area this deep and setup?

Asked on 06/11/2013 by DONALD HYATT

Top Answer

Sounds like a large gap for a keel. While theWatertite will likely hang in the gap, I would first find out why there is such a large void. The Watertite is primarily used for small fairing and is easily suited for below waterline fairing and filling (like blisters). It does not like to be stressed though as is the case in a diret Keel to hull joint>

Answered on 06/13/2013 by DAVID KNIGHT
See More Answers (3)

Answer

The short answer is it depends. I've used the product below the waterline to fair my hull and keel. It sands and grips the surface well. As long as there is no movement between hull and keel it will most likely work well. Remember to roughen the fiberglass surfaces. You may have to build out the large gaps with a few layers, however, curing was no problem for my single layer of a 1/2" deep by 4". Overall, I was very satisfied with InterProtect. Smooth Sailing!

Answered on 06/11/2013 by RICHARD LEA

Answer

Watertite is a superb product. I think it would work fine to fill the cracks/voids around your keel. The only question would be: will it adhere to the keel and your hull material, particularly if there is any movement between the keel and hull? I use WT both as a thin filler before painting, and as a void filler. Easy to mix. Easy to apply. Easy to sand smooth. One suggestion:Over-fill each void. Then, before the WT hardens too much, use a wood rasp or scraper to roughly shape your applied glob of WT, then use ordinary sandpaper for a final smoothing when the WT is hard.

Answered on 06/11/2013 by FRANK NIEPOLD

Answer

I have used this products on the keel of my sailboat, I filled what it looked like some kind of separation, when I filled the seam I used fiber cloth,mixed with this epoxy, The job came out beautiful however I have not taken the boat out of the water to check the results . After I repaired the keel I added on top 3 coats of Pettit antifowling, over all the job came out strong and almost perfect

Answered on 06/12/2013 by JOSEPH NITTI
Answer Question

Question

I just watch this video on Interprotect 2000 and Epiglass 9000. My question is when do you use the epiglass 9000 and ht450 filler for fairing before you apply the epiglass epoxy or after?

Asked on 07/21/2012 by steve mccarthy

Top Answer

I used yav 135 filler to fill cracks in gelcoat ann then primered and painted over that. This was on a fiberglas hull year 1962 that I was restoring

Answered on 07/30/2012 by JAMES FUGMAN
See More Answers (3)

Answer

Steve - With a sound and clean bottom to start with, seal with the epoxy, wash off amine blush following cure, then fill and fair with the watertite. This ensures that the epoxy seal coat seals any errant fibers BEFORE the putty goes on. Hope this helps Dave in Annapolis

Answered on 07/31/2012 by DAVID KNIGHT

Answer

Before! All filling and fairing activities share one goal: achieve an absolutely flat surface. Every ding; every irregularity, all lows and highs must be completely erased before you begin building coats of primer and finish paint. The quality of your preparation defines, and limits the achievable quality of your final result.

Answered on 09/18/2012 by MICHAEL CLAUDON

Answer

I am not qualified to answer your question as I am using the interlux inter protect watertight epoxy filler to fair of after repairing blisters and will be sealing over with interlux 2000e However I will be applying two coats of 2000e and fairing again with interlux inter protect watertight epoxy filler befor finishing with a further three coats of 2000e

Answered on 07/30/2012 by STEPHEN BARRY
Answer Question

Question

would this product be good to prim allum . row boat?

Asked on 05/04/2015 by richard schmidt

Top Answer

I have not used this product on aluminum but if you clean the aluminum and then use zinc chromate as a primer it will be fine , this particular product works great on fiberglass

Answered on 05/04/2015 by JOSEPH NITTI
See More Answers (2)

Answer

No. It is a thick filler paste. It is not a primer that can applied like paint.

Answered on 05/04/2015 by WILLIAM CANTOR

Answer

Short answer is NO. It is not a primer. It is a thick trowelable filler.

Answered on 05/04/2015 by HERBERT R DRURY JR
Answer Question

Question

I am filling in the cracks on the canvas of a canoe. The instructions say do not put a top coat over repairs unless you paint it first with an expoxy primer. Is this necessary? I would wash and sand it and then paint with tremclade paint. I don't want to prime if I don't have to. Thanks - Dave

Asked on 07/01/2013 by Dave Pethick

Top Answer

Dave: I haven't tried the Watertite w/o the primer. Instructions from Interlux are not tremendous, but there are forums on I-boat and other sites that should be able to answer this question. Sorry I can't be of more help. Good Luck, Michael

Answered on 07/01/2013 by mjg mjg
See More Answers (2)

Answer

Hi David. I do not think this filler is suitable for covering cracked canvas. It is too rigid and will crack itself. It is more for fairing or smoothing of a more rigid base.

Answered on 07/18/2013 by STEPHEN BARRY

Answer

I wasn't sure how the top coat would react with the filler so I primed first. Are you sure the filler will bond to the canvas?

Answered on 07/17/2013 by RICHARD GAGNE
Answer Question

Question

how soon can it be sanded without it getting too hard?

Asked on 06/03/2014 by Undisclosed

Top Answer

I I let i fully cure / instructions on the can. Sanded easy and was easy to shape.

Answered on 06/03/2014 by ROBERT BOSTIC
See More Answers (1)

Answer

Depends on temperature. Product is an epoxy base so once cured, can be sanded. Ready to sand if it does not roll or clog paper.

Answered on 06/05/2014 by DAVID KNIGHT
Answer Question

Question

Can interlux water tight filler go on over interlux perfection, without removing all the paint first?

Asked on 06/03/2018 by Judi from Flagstaff AZ

Top Answer

This may depend on the condition of the Perfection. If there is any concern over this, Interlux is great at answering questions like this.

Answered on 06/19/2018 by JD Tech Associate
Answer Question
1 of 2