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TotalBoat Topside Primer is a premium marine undercoat compatible with one-part and two-part topside finishes. Intended for use above the waterline, it can be sprayed, rolled, or brushed prior to painting with polyurethane or enamel topside paints.
Use on wood, fiberglass, gelcoat, & over previously painted materials. This single-part, high-solids primer requires only a single coat, dries quickly & sands easily. Thin with TotalBoat Special Brushing Thinner 100 when brushing, and TotalBoat Spray Thinner 100 when spraying. TotalBoat Topside Primer comes in White or Gray in Quarts and Gallons.
We recommend this primer with our TotalBoat Wet Edge Topside Paint, available in 21 brilliant colors.
IMPORTANT: Stir primer continuously for five minutes before use.
| Vehicle Type | Phenolic Modified Short Oil Alkyd |
|---|---|
| Application Method | Brush, Roll or Spray |
| Number of Coats | 1-2 coats |
| Dry Film Thickness (per coat) | 1-2 mils |
| Wet Film Thickness (per coat) | 3 mils |
| Application Temp | 50-90°F |
| Application Humidity | 0-90 % |
| Dry Time (to touch) | 1 hour @ 50°F 30 mins @ 70°F 10 mins @ 90°F |
| Dry Time (to overcoat) | 4 hours @ 50°F 2 hours @ 70°F 1 hour @ 90°F |
| Coverage | 350-400 sq ft/gal |
| Finish Sheen/Gloss | Flat (5-10°) |
| VOC | < 358 grams/liter |
| Flash Point | 1° |
| Solids (by weight) | 61-64 % |
| Solids (by volume) | 42-45 % |
Preparation & Application Tips
Preparation is the key to good-looking, long-lasting, results. A properly prepared surface is clean, solid and dry. Do not paint immediately after rain, during foggy weather or when the temperature is below 50 degrees Fahrenheit.
If brushing/rolling, thin 5-10% with TotalBoat Special Brushing Thinner 100, if desired, and use a foam roller or firm polyester brush, for best results. If spraying, thin 10-20% with TotalBoat Spray Thinner 101, if desired. Avoid lap marks by not painting in direct sunlight and by coating sections of the surface either down or across hull to natural breaks, maintaining a wet edge.
If your edge begins to dry or you see that you missed a spot and the primer is already setting up, allow it to dry completely before touching up that area.
Do not lather on primer too thickly or you will compromise all flexible adhesion characteristics that make TotalBoat Primer one of the industry's leading one-part undercoats. Dry Film Thickness (DFT) should be 1-2 mils.
Technical Information
Features
- High-performance, one-part primer
- Fast drying
- Non-lifting
- Lead and chromate free
- Rust inhibitive
Thinning and Cleanup
- Thinning (Brush/Roll Application): TotalBoat Special Brushing Thinner 100
- Thinning (Spray Application): TotalBoat Spray Thinner 101
- Cleanup: TotalBoat Special Brushing Thinner 100, TotalBoat Spray Thinner 101, or TotalBoat Dewaxer & Surface Prep
WARNING: This product can expose you to chemicals including titanium dioxide, ethylbenzene, silica crystalline, and cumene, which are known to the State of California to cause cancer, and n-methylpyrrolidone, which is known to the State of California to cause developmental toxicity. For more information, go to www.P65Warnings.ca.gov
Reviews for TotalBoat Topside Primer
Verified Purchase
If you are inexperienced with fast drying alkyd paint, you should practice on some scrap before using this on your project. It dries so fast that you really can back up over what you just did with a roller or brush. I cut it 5% and that is so thin I would not want to thin it further as it would drip. This primer really cuts into previous paint layer and bonds like no other. If I needed a very smooth car type finish, I would consider spraying this and not roll and tip. I didn't care is it was going on a pontoon boat over a bunch of crappy texture. Worked great.
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Verified Purchase
I would recommend this product to all boat owners.
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Verified Purchase
Great primer on surfaces in good condition. Used it as a primer for Wet Edge & Total Tread. Fast drying/ strong odor must use with good ventilation.
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Verified Purchase
Follow directions. The coat must be thin. It dries very quickly so work tiny areas. No need to tip off. That is nearly impossible anyway because it dries so fast. Smoothing over just adds more (too much) paint and texture. Thin coats work great.
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Verified Purchase
This primer appears to have worked great. Proof will come over the next few years during use, but a good start. As a side note, I used a combination of Wet Edge and Halcyon clear varnish (9 coats all in) over the rest of my outdoor cabinet with stellar results. That cabinet has been in the back of my pick up through sun, rain and snow for a couple years with no failure. The cap that I refinished protects my battery, associated electronics and refrigerator – it needs be watertight to keep things dry. My project was re-coating an outdoor cabinet top that sits in the back of my pickup. After sanding and scraping, the substrate was a combination of bare wood, paint, TotalBoat Wet Edge and Halcyon varnish. Definitely needed a primer. This product was sticky yet easy to use. I thinned close to 10% with TotalBoat brush thinner. Applied two coats with a brush. The primer went on evenly and provided a good base for the five coats of wet edge I applied on top. The end product looks great. Hope it will last a few years.
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Verified Purchase
Easy to use, but next project I'll probably go with the 2 part epoxy primer.
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Verified Purchase
Removed lower deck teak on a 1989 Grand Banks. Sanded black butyl off with 80 grit. Filled pulled up gelcoat with TotalBoat fairing compound, and sanding to 150, then applied Topside Primer. Used two coats because we had some hairline cracks and random low spots I missed. Was great at filling in and smoothing surface. The final topcoat was TotalTread. The Primer and the TotalTread were both applied with a red 4" mohair roller. Everything went on smooth and easy. The hardest part was the taping. Very happy with product(s) and results.
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Verified Purchase
My fore deck was in danger of collapsing because of water intrusion. First time with epoxy, total boat made it easy. Everything worked the way it was supposed to. The boat is better now than new.
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Verified Purchase
Topside primer is unusually thick right out of the can. I didn't thin it because I wanted to take advantage of it's alleged 'high build' characteristic. It sands fairly easily but not quite as easily as other primers I've used. It dries fast. As suggested in other reviews, applying multiple thin coats is better than one thick coat.
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Verified Purchase
The primer was clumpy and it took a while to mix up,when I rolled it on it did not cover the fairing compound or other imperfections,I've used this product before on my other boat it worked fine,anyway I gave up and just painted over it.
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