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

Interlux InterProtect Watertite Epoxy Filler

Interlux InterProtect 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. Interprotect Watertite YAV135 is strongly recommended for filling gelcoat blisters below the waterline. It is recommended for use with the Interprotect Epoxy Barrier System or VC Tar2.
 
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Tech Spec Product Info User Generated Content

Interprotect Watertite YAV135 is an excellent fairing compound due to its unique two-phase cure, which gives a long easy-to-sand window. Interprotect Watertite YAV135 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 13

REVIEW SNAPSHOT®

by PowerReviews
Interlux InterProtect Watertite Epoxy Filler
 
4.6

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 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 (12)
  • Protects well (9)
  • Visually pleasing (6)
  • Weather proof (6)

Cons

    Best Uses

    • Quick fix (4)
    • Outdoors (3)
      • Reviewer Profile:
      • Recreational (4), Professional (3)
      • Was this a gift?:
      • No (9)

    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 13 customers

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    Displaying reviews 1-10

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    4.0

    Good to have in the shop

    By BRENTS

    from NEWARK, DE

    About Me Advanced

    Verified Buyer
    Ensign

    Pros

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

    Cons

    • Difficult To Sand

    Best Uses

    • Filling And Fairing

    Comments about Interlux InterProtect 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 InterProtect 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 InterProtect 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
    Ensign

    Pros

    • Easy to Use

    Cons

      Best Uses

      • Below Water Line Blisters

      Comments about Interlux InterProtect 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 InterProtect 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 InterProtect 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 InterProtect 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 InterProtect 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 InterProtect Watertite Epoxy Filler:

                Great product. Always keep some around the shop.

                • Was this a gift?:
                • No

                (3 of 3 customers found this review helpful)

                 
                5.0

                Fantastic product!

                By Lakeboat

                from Wolfeboro, NH

                About Me Recreational

                Verified Reviewer

                Pros

                • Easy to Use
                • Protects Well

                Cons

                  Best Uses

                  • Below waterline

                  Comments about Interlux InterProtect Watertite Epoxy Filler:

                  I used the Watertite filler for a few dents & scrapes, and some faring on a Hacker-Craft mahogany runabout, below the water line. This is the easiest filler I've ever used. Since it is a 1:1 ratio, mixing can not be simpler. It trowels like butter, even upside down, and it's 100 times easier to tool than drywall mud (for comparison purposes only - DO NOT use drywall mud on your boat!). It cures quickly. Try to tool/trowel/level it while you are working it because that is much easier than trying to fix it later with sandpaper. It cures hard - which is what you want.

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