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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.
|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 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|
|Solids (by weight)||61-64 %|
|Solids (by volume)||42-45 %|
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 (DFT) should be 1-2 mils.
Thinning and Cleanup
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
December 8, 2021
September 20, 2021
Very difficult to work with as it dries very, very quickly. I wish the person I spoke to had told me that. I do not know yet how it will hold up.
September 7, 2021
great primer people thought I had painted the boat white with a great finish HAHA..
August 24, 2021
I had to adjust the thinner due to the humidity this summer but 3 coats and the boat looks great for an amateur.
July 24, 2021
Used on my old canoe. Lots still left for later.
July 6, 2021
Used it for my boat and not impressed at all. Drying time is supposed to be about 3 hrs. When it actually was about 10 minutes! Very difficult to get a good even coat applied.
July 1, 2021
Quick easy multi coats in a day beautiful finish
June 30, 2021
A few comments, first if you apply in hot HUMID conditions, even watching thickness and application method, make sure it is really, really dry before top coating. It was dry to the touch and to a very light sand, but when top coated with Wet edge the primer spots stayed gummy for days. Wound up sanding right back and starting again, much thinner coats (applied with a foam brush) and drier conditions. But the thinner coats mean it does not cover the TotalFair, which I really like, well at all. I have a white hull and I am working on the 3rd coat of primer and the darkness of the total fair is still not covered. So, not too impressed. Perhaps it works beautifully in a climate controlled shop, but not in my boat shed.
June 15, 2021
Works better than similar products I have used in the past. I will definitely be using this product again.
June 4, 2021
amazing primer. Had to repaint my mast with some repaired sections. Primed the repairs with Topside Primer. .. EXCELLENT PRODUCT
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