

🛡️ Protect your boat like a pro—corrosion doesn’t stand a chance!
TotalBoat Aluminum Boat Barrier Coat is a high-build, two-part epoxy primer designed specifically for aluminum hulls and pontoons. It offers superior corrosion protection above and below the waterline, dries quickly without sanding between coats, and provides excellent adhesion for long-lasting paint finishes. With coverage of 225 sq. ft. per gallon and compatibility with various marine paints, it’s the go-to waterproof barrier coat trusted by professionals and DIY boaters alike.

| ASIN | B06X3RZRHB |
| Age Range Description | Adult |
| Best Sellers Rank | #60,796 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #56 in Boat Painting Supplies |
| Brand | TotalBoat |
| Brand Name | TotalBoat |
| Color | Gray |
| Color Code | #808080 |
| Container Type | Barrel |
| Coverage | 225 sq. ft./gallon |
| Customer Reviews | 4.6 out of 5 stars 261 Reviews |
| Finish Type | Matte |
| Full Cure Time | 3 Hours |
| Global Trade Identification Number | 00811932022769 |
| Included Components | Base, Curing Agent |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | True |
| Item Form | Liquid |
| Item Volume | 128 Fluid Ounces |
| Manufacturer | TotalBoat |
| Model Number | 497402 |
| Paint Type | Spray |
| Part Number | 497402 |
| Size | 128 Fl Oz (Pack of 1) |
| Special Feature | Waterproof, Fast-Drying |
| Special Features | Waterproof, Fast-Drying |
| Specific Uses For Product | Exterior |
| Surface Recommendation | Aluminum |
| UPC | 811932022769 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Waterproof |
R**R
Application
5 step process, lot's of labor, #1. sand boat, #2. JB Weld (Marine Grade) any pock holes, #3. Sand boat again, then use the recommended etching spray, #4. apply 2 part barrier paint 3:1 mix rolls on thick not like paint 3 coats minimum are recommended, last step #5. apply Aluminum AF paint... Well worth the end result with maximum protection, 3 quarts yields 3 coat's on a 14' boat...expect about 2 days to apply with day time temperatures being considered, read all instructions carefully, very detailed wear appropriate clothing and read entire procedures... Very impressive 👍😎
F**K
Welder’s worst nightmare
Just got off the phone with my guy whos welding aluminum. “Jesus guy, what kind of primer you use on this!? I had to sand and torch it 3 times to get it off!” Gave me a good laugh. This stuff is pretty tough. Application was easy as long as you take your time and prep it correctly. Pretty happy and If i decide to totally restore another flat bottom in the future(NOT likely) I will be sure to purchase again.
P**1
Sailboat Rigger Recommended
We had our pontoon boat out of the water to refurbish it. I sent photos of our electric motor shaft to my nephew who is a sailboat rigger for advice. It was looking corroded. He recommended cleaning the corrosion off and buying this particular product for protection. It is like a thick paint and was super easy to apply. For sure it will give our motor years more of service. Worth the cost.
E**N
Works good
Good product used on my jon boat
B**D
A few things to keep in mind....
What a great product, just a few things that helped me... It is going to be too thick out of the can. drill mixing attachment to mix the base and hardner together. Thin 10% with totalboat 200 thinner and roll it on with a bunch of small foam rollers. Wear a good respirator, probably too dangerous to spray without a full force fed suit as I have read these epoxies in aerosol can damage your lungs real bad, not worth the risk.. It etches and bonds to even lightly oxidized aluminum. I quit sanding and just washed clean and applied, seems to be holding up no differently than a lot of sanding...
B**W
Aluminum boat hull
Used to prime and protect a boat project. It goes on very thick and rough even when thinned out. Reminded me of bedliner. But that could of been the application process. Cheap airless gun. It did cover well and did a total of 4 coats.
S**L
Buy this now
1000% reccomend this. I bought this as a precaution to help stop any leaks that nay or may not happen. It popped up when I google waterproof barrier undercoat for a boat. This product is not rated to be waterproof I later found out but once I applied it I felt super happy it went on perfectly to my aluminum 16foot boat. I do reccomend getting a top coat for once it drys. Use inside as well if you can
M**H
Ready for fishing.
Bought a boat for fishing this spring...long story...but the guy swore it did not leak. It did. Found this product on Amazon bought it and put a coat on heavy. Covered it with paint like it said. Let it dry good for a week and it's like a new boat again. Very pleased with the outcome.
Trustpilot
5 days ago
1 week ago