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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.
$32.99
$32.99
$55.65
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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:
Fairing Compounds
Questions & Answers about Interlux InterProtect Watertite Epoxy Filler:
2012-07-21STEVE MCCARTHY asked: 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?
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2012-07-30STEPHEN BARRY: 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
2012-07-30JAMES FUGMAN: 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
2012-07-31DAVID KNIGHT: 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
2012-09-18MICHAEL CLAUDON: 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.
2012-04-26A shopper asked: How can I tint this white to match the hull above and below the waterline?
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2012-05-04STEPHEN VEJVODA: I have not opened my epoxy yet, and I've never tried to color it either . Sorry not much help here
2012-03-18A shopper asked: what coler is it?
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2012-03-20THOMAS ZAULI: It's light blue.
2012-03-20SEAN WHITE: It is light blue. I have used this extensively on my project and this is the best marine filler EVER.
2012-03-22MICHAEL SEKELA: 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 !!!
2012-04-09BRADLEY OBLAK: The color is a light blue similar to original Crest toothpaste. I took a picture if interested.
BS
2012-05-15GEORGE FAHAD: 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
2011-10-10JOHN M asked: I have a gash on the front of our PWC (jetski) about 2"x6" with fiberglass exposed on the outside from of the PWC. This is typically above the waterline during normal operation, at idle the nose is down and would be under the water line. Would this product work to patch this?
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2011-10-11THOMAS SMITH: hey john i used this to repair fiberglass and it worked awesome mixes up to thickness of peanut butter and has good working time and gets hard as a rock but still sandable dont know how deep your gash is but it will sag so might need coulpe of thin coats
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
4/22/2013
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
3/16/2012
5.0
Good stuff - I've used it before
By Al the boat guy
from New England
About Me Casual/ Recreational
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
2/4/2012
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
6/3/2009
(2 of 2 customers found this review helpful)
5.0
Fantastic product!
By Lakeboat
from Wolfeboro, NH
About Me Recreational
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.
1/21/2009
(1 of 1 customers found this review helpful)
5.0
Great product!
By Cap'n Ronn
from Oklahoma City, OK
About Me Recreational
Pros
Easy to Use
Protects Well
Cons
Messy
Best Uses
Quick Fix
Comments about Interlux InterProtect Watertite Epoxy Filler:
Great stuff! mix in small batches becouse it gets stiff real fast. Don't leave to much overlap becouse when it sets up it is hard as nails. -Ronn
8/29/2008
(1 of 1 customers found this review helpful)
5.0
best product for gelcoat repairs
By pegasus
from Long Island NY
About Me Recreational
Pros
Easy to Use
Weather Proof
Cons
Long time before sanding
Best Uses
Comments about Interlux InterProtect Watertite Epoxy Filler:
I have tried to use Interlux's Interfill to repair blowouts in the gelcoat below the water line, but find it too stiff to be able to force it into the voids and still get most of the overfill off the surrounding gelcoat in order to reduce the sanding effort afterward. Working time is a bit short.
I have also tried Epiglass (without any filler added) and it runs like egg white -- does'nt stay put. Definitely needs filler for this application, which makes it much too expensive and even more complicated to mix.
Watertite, on the other hand, spreads like mayonnaise, is very easy to work with, and has a longer pot life than Interfill.
Oh yes, there is 3M's Marine Premium FIller. Don't try to mix more than a golf ball sized batch -- it gets to stiff to use in 10 minutes. I can't imagine why the directions on the can give proportions for up to 8 oz batches.
3/16/2008
(4 of 4 customers found this review helpful)
4.0
Used to restore my whaler's hull
By Daves Whaler
from Salem Ma
About Me Recreational
Pros
Easy to Use
Protects Well
Spreads well
Visually Pleasing
Weather Proof
Cons
Best Uses
Outdoor
Quick Fix
Comments about Interlux InterProtect Watertite Epoxy Filler:
I am 100% satisfied with this product. Great for filling nicks,cracks,pits,ect.in gelcoat/hull areas.used on my whaler below waterline.Great way to fair and waterproof any fiberglass repair.Tuff durable product. I definately recommend this product to anyone restoring a old classic or modern repair. Thanks Interlux
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