TotalBoat TotalFair Fairing Compound
Interlux Watertite Epoxy Filler
Interlux Interlux
  • Interlux Watertite Epoxy Filler

Interlux Watertite Epoxy Filler

Interlux Watertite Epoxy Filler YAV135 is a two-part, easy to use, fast drying epoxy compound for filling holes and repairing scratches in gelcoat and fiberglass. Watertite YAV135 is strongly recommended for filling gelcoat blisters below the waterline and for use with the Interprotect Epoxy Barrier System.
 
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Tech Spec Product Info User Generated Content

Interlux Watertite YAV135 is an excellent fairing compound due to its unique two-phase cure, which gives a long easy-to-sand window. Watertite can be applied to a thickness of 3/4" without sagging and its superior spreadability makes it an ideal glazing compound for filling small nicks and scratches.

What is Gelcoat Blistering?

Osmosis is caused by a chemical reaction between water and unreacted substances remaining in the manufactured hull. Water breaches the exterior gelcoat and reacts with the chemical components creating acidic substances. These substances create pressure behind the gelcoat which causes blisters and eventually cracking. Once the gelcoat is breached in this manner, the underlying laminate is capable of absorbing water like a sponge.

Use the Interlux Interprotect system to treat and help prevent this insidious problem.

BRAND: Interlux
Material: Epoxy
Number Of Parts: Two Part
Rate Of Cure: Fast
Type: Fillers
4.6 14

REVIEW SNAPSHOT®

by PowerReviews
Interlux Watertite Epoxy Filler
 
4.6

(based on 14 reviews)

Ratings Distribution

  • 5 Stars

     

    (10)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

92%

of respondents would recommend this to a friend.

Pros

  • Easy to use (13)
  • Protects well (9)
  • Visually pleasing (6)
  • Weather proof (6)

Cons

No Cons

Best Uses

  • Quick fix (4)
  • Outdoors (3)
    • Reviewer Profile:
    • Recreational (4), Advanced (3), Professional (3)
    • Was this a gift?:
    • No (10)

Most Liked Positive Review

 

Repair/build, almost anything.

It's great to fix holes, and imperfections in whatever your working on. Great for a skim coat before painting. Repair cracks in water jackets, manifolds, anything that leaks. Frozen, busted engine...Read complete review

It's great to fix holes, and imperfections in whatever your working on. Great for a skim coat before painting. Repair cracks in water jackets, manifolds, anything that leaks. Frozen, busted engine parts. Loose bolt holes. Any loose fit, fills gaps well. Sticks to anything, and paint sticks to it well, great for a primer skim coat on bottom of boat, makes it strong, and water tight. Fills in holes, mistakes. etc..It costs a lot, but you won't be sorry.

VS

Most Liked Negative Review

 

shrinks really bad at least 50 percent

I used this product to fair a steel keel. I would not say it was totally bad and finished out very nicely. But took three applications to fair out smoothly due to shrinking

I used this product to fair a steel keel. I would not say it was totally bad and finished out very nicely. But took three applications to fair out smoothly due to shrinking

Reviewed by 14 customers

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5.0

Excellent filler / fairing compound.

By Eric

from Fairhaven, MA

About Me Advanced

Verified Reviewer

Pros

  • Easy to Use

Cons

    Best Uses

      Comments about Interlux Watertite Epoxy Filler:

      Interlux watertite is a great fairing compound for finish and detail fairing. Does not develop pin holes and goes on very smooth and light with a plastic spreader. Sands out nicely as well.

      • Was this a gift?:
      • No
       
      4.0

      Good to have in the shop

      By BRENTS

      from NEWARK, DE

      About Me Advanced

      Verified Buyer

      Pros

      • Cures Quickly
      • Easy to Use
      • Good viscosity
      • Protects Well
      • Strong

      Cons

      • Difficult To Sand

      Best Uses

      • Filling And Fairing

      Comments about Interlux Watertite Epoxy Filler:

      I use this product for filling and fairing. It goes on smooth and cures quickly. Can be sanded the same day it is applied. The cured epoxy is very hard and strong, however sanding is more difficult than common boat building epoxy. So close attention to getting a smooth initial application is helpful.

      Can be easily mixed in small batches. One component is blue, the other is white. The colors mix to a light blue, which is very helpful to indicate the components are well mixed. I keep the batches sized for the immediate task, mixing additional batches as needed.

      • Was this a gift?:
      • No
       
      3.0

      shrinks really bad at least 50 percent

      By ursaltydog

      from Murrells Inlet, S.C.

      About Me Professional

      Verified Reviewer

      Pros

      • Easy to Use
      • Protects Well
      • Visually Pleasing
      • Weather Proof

      Cons

      • Ineffective
      • Not Durable
      • Shrinks Really Bad

      Best Uses

      • Steel Keel Fairing

      Comments about Interlux Watertite Epoxy Filler:

      I used this product to fair a steel keel. I would not say it was totally bad and finished out very nicely. But took three applications to fair out smoothly due to shrinking

      • Was this a gift?:
      • No

      (0 of 1 customers found this review helpful)

       
      5.0

      great protection

      By ursaltydog

      from Murrells Inlet, S.C.

      About Me Professional

      Pros

      • Easy to Use
      • Protects Well
      • Visually Pleasing
      • Weather Proof

      Cons

      • It Can Make You Very Sick
      • Wear Filtered Protection

      Best Uses

      • Steel Keel Protection

      Comments about Interlux Watertite Epoxy Filler:

      Ive used this product on sailboat keels for over 15 years and highly recommend for underwater protection

      • Was this a gift?:
      • No
       
      5.0

      First time using Epoxy filler

      By BRUCEK

      from ALPHARETTA, GA

      About Me Beginner

      Verified Buyer

      Pros

      • Easy to Use

      Cons

        Best Uses

        • Below Water Line Blisters

        Comments about Interlux Watertite Epoxy Filler:

        I found the product to be very easy to mix and apply. I suggest wearing disposable plastic gloves as working upside down can get messy. The product did not set too fast but then again was able to be sanded in just a few hours. I have not put the baot in the water yet but feel confident this product will hold up as it is very tough stuff once it completely dries.

        • Was this a gift?:
        • No

        (0 of 1 customers found this review helpful)

         
        5.0

        Repair/build, almost anything.

        By Brother Freight

        from Maryville Tn.

        About Me Professional

        Pros

        • Can Use As A Primer Coat
        • Easy to Use
        • Fix Loose Bolt Holes
        • Good For Skim Coating
        • I Love The Working Time
        • It Don't Come No Better
        • Protects Well
        • Repair Engine Parts
        • Repairs Cracks In Motors
        • Sticks To Anything
        • Very Strong And Hard
        • Visually Pleasing
        • WATER PROOF
        • Weather Proof
        • You Won't Be Sorry

        Cons

        • Hard To Sand When Cured
        • Very Hard To Clean Of Too

        Best Uses

        • Build-up
        • Engine
        • Indoor
        • Outdoor
        • Quick Fix
        • Shape Into Anything
        • Skim Coats
        • Tranisitons
        • Wood Trim

        Comments about Interlux Watertite Epoxy Filler:

        It's great to fix holes, and imperfections in whatever your working on. Great for a skim coat before painting. Repair cracks in water jackets, manifolds, anything that leaks. Frozen, busted engine parts. Loose bolt holes. Any loose fit, fills gaps well. Sticks to anything, and paint sticks to it well, great for a primer skim coat on bottom of boat, makes it strong, and water tight. Fills in holes, mistakes. etc..It costs a lot, but you won't be sorry.

        • Was this a gift?:
        • No
         
        5.0

        I love this stuff; its great!

        By Don

        from Panama City, Fl

        About Me Casual/ Recreational

        Pros

        • Easy to Use
        • Easy To Work With And Fix
        • Protects Well
        • Visually Pleasing
        • Weather Proof

        Cons

          Best Uses

          • Bottom Scrapes
          • Gell Coat Fixes
          • Outdoor
          • Quick Fix
          • Wood Trim

          Comments about Interlux Watertite Epoxy Filler:

          I have used this product for blister repairs to the bottom prior to new bottom paint as well as bottom scrapes and dock abrasions not to mention gell coat repairs and wood hatch slide cracks and items too numberous to mention. Beats the the heck outof bonso and many other products that I have tried. This is a good structural strength product. I have been a certified aircraft mechanic for over 50 years and now I work on my sail boats.

          • Was this a gift?:
          • No
           
          5.0

          good stuff

          By Osprey J24

          from Blue Point NY

          About Me Beginner

          Pros

          • Easy to Use

          Cons

            Best Uses

              Comments about Interlux Watertite Epoxy Filler:

              I mixed this is very small batches and used to fill scratches and chips on the bottom of my j-24. Easy to work with. Gets very hard after a few days, so be careful not to apply too much or wait too long to shape. Overall I am very satisfied

              • Was this a gift?:
              • No
               
              5.0

              Good stuff - I've used it before

              By Al the boat guy

              from New England

              About Me Casual/ Recreational

              Verified Reviewer

              Pros

              • Easy to Use
              • Protects Well
              • Visually Pleasing

              Cons

                Best Uses

                • Fairing the keel
                • Fairing thru hulls
                • Filling cracks

                Comments about Interlux Watertite Epoxy Filler:

                I've used this product to fair my keel, around my thru hulls, and to fill the "smile" between the keel and the keel stub. It takes some elbow grease to sand it down fair. It's best to apply it smoothly in the first place.

                Watertite dries quickly, holds well to properly prepared surfaces, and lasts well. Sabre Yachts used it on my original boat, and I continue to use it for repairs.

                • Was this a gift?:
                • No
                 
                4.0

                Good for many purposes

                By FrankN

                from Philadelphia, PA

                About Me Advanced

                Pros

                • Mixes sands easily

                Cons

                • Can't chisel it chips

                Best Uses

                  Comments about Interlux Watertite Epoxy Filler:

                  Great product. Always keep some around the shop.

                  • Was this a gift?:
                  • No

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