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Product Details

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.

Tech Specs
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
Solids (by weight) 61-64 %
Solids (by volume) 42-45 %
Info & Guides

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

10 of 121 Reviews

November 5, 2022

Nice Top Coat Setup
By Captain Gare Bear from Longmont, CO

Verified Purchase

I used the product as the setup for a two-coat application of Wet Edge Topcoat Paint. This primer was very easy to use, and it appeared to be a nice setup for the Wet Edge. I applied it as the primer coat on a fiberglass repair project. The Wet Edge Topcoat paint that went over the primer coat achieved an excellent finish and appearance.

Bottom Line Yes, I would recommend to a friend

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October 13, 2022

I would definitely use this product again
By BigFishKustoms from New Orleans

Verified Purchase

I got good coverage a little goes a long way

Bottom Line Yes, I would recommend to a friend

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July 26, 2022

I would buy this again
By J from Harrisonburg VA

Verified Purchase

Restored a very damaged sliding board and it turned out great

Before
After
Bottom Line Yes, I would recommend to a friend

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July 19, 2022

aft cockpit deck
By Ed in west Michigan from west Michigan

Verified Purchase

Worked good, a little thin but I didn't need to be fussy as it was going under Total Tread.

Bottom Line Yes, I would recommend to a friend

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July 12, 2022

Good Paint
By Robert from Moriches, Long Island, NY

Verified Purchase

Nice thick primer. I always thin it out a bit with TB Brushing Thinner 100. Dries real hard within a few hours, and I light sand it the next day before applying topside paint. Goes on well with 1/4 in. rollers from big-box stores. I use a chip brush for the cracks and corners. Topside paint sticks well to this primer after a light sand with 220 grit or 320 grit paper.

Bottom Line Yes, I would recommend to a friend

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June 12, 2022

Best Genuine Primer Around!
By ModernGuy78 from New York City NY

Verified Purchase

I used this Primer, , on drawer- cabinet fronts of a mid-century Dresser. Dries fast..and super durable and Protective.. perfect for Pre- Painting almost anything! LR

Priming Drawers for Lacquer Paint.
Bottom Line Yes, I would recommend to a friend

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June 9, 2022

I would buy this product again
By TD from Portland Me

Verified Purchase

I used it as a primer for total wet edge

Bottom Line Yes, I would recommend to a friend

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May 19, 2022

Applied easily - even in the heat
By Tmac from Central Illinois

Verified Purchase

Product performed well - most importantly the technical advice I received in the purchasing process was spot on... thanks!

Final product
Bottom Line Yes, I would recommend to a friend

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May 13, 2022

yes i would buy again.
By microvincy from Elizabeth City, N.C.

Verified Purchase

my problem, not yours, I needed to pay attention to size/quantity of what I was buying. I did get what I asked for. Got it promptly.

Bottom Line Yes, I would recommend to a friend

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May 8, 2022

Easy to use and sand
By Mike from Chesapeake Bay

Verified Purchase

Be sure to mix thoroughly, this is thick! Helpful to fill in minor imperfections then sand before top coating.

Bottom Line Yes, I would recommend to a friend

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