TotalBoat Topside Primer Gallon
TotalBoat TotalBoat by Jamestown Distributors
  • TotalBoat Topside Primer Gallon
  • TotalBoat Topside Primer Quart
  • TotalBoat Topside Primer Color Chart

TotalBoat Topside Primer

TotalBoat Topside Primer is a premium marine undercoat compatible with one-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 xylene 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.

Bonus included with all purchases: 2 plastic 1 QT paint pots, 2 10" wooden stir sticks, 1 pair large latex loves.

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$31.99 / qt
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Tech Spec Product Info User Generated Content


  • 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): Xylene
  • Cleanup: TotalBoat Special Brushing Thinner 100, TotalBoat Dewaxer & Surface Prep, or xylene


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.

Use a foam roller or firm polyester brush for best results. If spraying, thin with xylene up to 15-20%. 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 should be 1-2 mils.

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  250-300 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 % 
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

Below Water Line (yes/no): No
BRAND: TotalBoat
Number Of Parts: One Part
Rate Of Cure: Fast
Type: Topside Paint Primer
4.1 72

This primer didn't brush out well.


I was using TotalBoat Topside Primer on bare wood surfaces in my boat. The conditions at the time were overcast and low 60's F. The primer didn't brush out well even while trying to keep a wet edge. With hindsight, I probably should have thinned it.

Chris Craft restoration

Green Bay, Wi.

I would not buy this again...


Ok, hate to do this, but done lots of painting, tried this primer for a topside epoxy job I'm doing. There may be a good use for this but not for mine and if you are expecting a nice sandable primer that you can get nice and smooth, this is not it !!!! worst junk ever had to deal with in my life !! After giving it 30+ hours dry time @ 80 still sands terrible and balls up terrible. I talked to tech guys after waiting 6 hours(they say 1-4) and told let dry more, still junk to me..they said maybe to thick ?? did with foam roller in what I consider not to heavy. Super disappointed in this and have not finished dealing with it as of yet...


Fredericksburg, va


Cure time was unacceptable


I applied this via roller, during the April to July time frame, here in Key West FL. With no thinner at all it was nearly unworkable. It gummed up the sandpaper even after 7 days of waiting. I started thinning it (up to 40%!) and got better results, but the final product almost always gummed up the sandpaper to some extent, no matter how long I waited. Considering the temps here in the Keys, it makes no sense as to why I'd be waiting days upon days for a cured product. It really put the brakes on my project as it set me back weeks waiting for a sandable finish. One coat, wait 3-5 days, one coat, wait 3-5 days. Eventually I was able to get it sanded and overcoated, so I'm not giving it one star, but I'll be reluctant to ever use this again. On the flip side, however, I've had great success with everything else from Totalboat!


Key West, FL


Highly recommend prior to painting!


Provided a great base for the paint!!Use to restore an older pool slide.


DuBois, PA


Works well


This is a good product. I used two coats to cover above water line of my paintless aluminum boat.Used a brush. Easy to apply, and I'm sure it made a good base for my Topside Total Boat paint.




Don't sand this primer in hot weather or direct sunshine


I sprayed the primer (thinned 15%) with some difficulty. Probably would have gone on better with a larger air cap. At the time all I had was a 1.3 mm. I had a lot of trouble sanding the primer due to its dust particles re-combining into little balls or disks and sticking to both the boat surface and the sand paper within seconds or about 10 swipes. This was after letting the primer set and cure for 3 days. I was board sanding by hand in order to fair a small racing sailboat's hull. I think the problem was due to the sand paper having a small contact area between the flat board and curved hull and friction creating heat. I learned to sand in the shade either early or late in the day when ambient temperature was below 65 degrees. Probably should have wet sanded and used a more flexible board. Applied primer in April in mostly cool weather. Perhaps if primer had cured in warmer 80 degree temps it would not have clumped up as badly for me. It seems like a good primer otherwise.

Captain Mark

Columbus, Ohio


I would not buy this product again


This primer is too thin for me to use as high build. Much thinner than other high build primers I've used.




Nice heavy primer


Fills scratches and sands to nice solid base for topcoat. Like the label states- two thin coats is easier to work than one thick coat.


Madison CT


Yes extremely pleased with the product and how it performs


Have tried other non-skid topside paint this far exceeds my expectations would recommend this to To any DIY users

Extremely please with the results

FT myers , fl


Best One Part Primer


I have been in the boat building / repair business since 1975. In my many years of working with the various marine primers on the market Total's Topside Primer is by far the best one part I have run across (it will stick to snot!). When combined with your Wetedge Topside product it is unbeatable, when spray applied I can rely on a flawless finish. Great Product!

Capt. Jim OBrien

North Florida


Premium Topside Primer



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