Coval Marine and Hull Coat

Coval Marine and Hull Coat is a durable pesticide and heavy metal-free protective coating, that reduces the build up of natural underwater debris, such as aquatic plants, shellfish, rust and galvanic corrosion, Although there are a variety of other uses. This is a two-part catalyzed product that requires careful application and surface preparation. Coval Marine and Hull Coat is suitable for all ferrous metal hulls, and non-ferrous metal underwater running gear, such as propellers, rudders, shafts, struts and trim tabs. Coval Marine & Hull Coat is also a very effective coating for concrete ponds, pipes, and tanks where it will help prevent liquid seepage through the pores of the concrete. It can also reduce drag, in moving liquids, through pipe lines, etc.

Note: Not for use on wood hull boats.


It is important to carefully follow application instructions. For more detailed instructions, see the Coval website.

For steel hulls and surfaces, remove all loose and defective coatings with blasting or abrasion. Repaint with marine grade primers in accord with manufacturer’s instructions. Then coat with Coval Marine and Hull Coat within the recommended “open-coat’ time period for the primer. (Failure to do so will result in peeling.)

For stainless steel, brass, aluminum, or bronze surfaces: completely clean to bare metal. Then using Coval Step #1 Cleaner for unpainted surfaces, clean surfaces to remove any contaminates. Rinse clean with fresh water and dry. Apply two coats of Coval Marine and Hull Coat, ‘wet-on-tack’ – the second coat must be applied within a 10-15 minute time frame. If the first coat loses tack, the second coat will NOT adhere.

Spray application is recommended. Mask off all areas not to be painted. In a clean container, mix equal parts of Coval Marine and Hull Coat and Coval Part B catalysis. Stir thoroughly before and during application to fully suspend nanoparticles. Use a high volume low pressure sprayer (HVLP) with a 1.0-1.3 spray tip with air pressure set at 25 to 30 psi. On larger projects use an airless sprayer. In all applications it is important to move quickly across entire surface maintaining a wet edge. The first application must be followed within 10 -15 minutes by a second, for wet-on-tack application. On larger projects it will be necessary to have several set-ups and operators to maintain adequate progress.

Coval Marine and Hull Coat may also be applied by using a high density ultra smooth foam roller or 1⁄4” nap roller. Apply in an up and down then left to right pattern to ensure complete coverage of the surface.
Clean-up immediately with acetone.

Caution: A professional spray mask should be used with this product, as well as eye protection, rubber gloves, and coveralls.

Coval Marine and Hull Coat - Specifications

Uses Protective, pesticide and heavy metal-free coating that reduces the build up of natural underwater debris.Surface protection Two part catalyzed product. 
Suitable surfaces All ferrous and non-ferrous metal underwater running gear, such as: metal hulls, propellers, rudders, shafts, etc.
Applications Spray (recommended) – (HVLP).0-1.3 tip and 25 to 30 psi. Or airless.
Solvent based YES  
Water based NO  
Flammable YES  
Voc"s 20 g/l VOCs
Coverage 300-500 sq. ft. per gallon Requires two coats.
Clean-up While soft: Acetone. When hard: none
Dry time Touch: 1 1/2 to as much as 2-4 hours Full Cure: 7 Days. Note:It is important to protect surface from water or rain for at least 5 hours after application
Application Method Lint-free paper applicator
Other relevant Coval products Coval Step #1 Cleaner for Unpainted Surfaces Coval Part B catalyst.
Sheen n/a
Porosity Non-breathable
Flash point
Ambient temp and humidity limits 45° F to 105° F working limit. Safe Relative Humidity: 90% or less

WARNING: Always use appropriate protection when using Coval products; including appropriate respirator,safety goggles, butyl-rubber gloves and coveralls; also, mask off or cover, all adjacent areas.

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