Interlux Pre-Kote Plus Boat Primer

Interlux Pre-Kote Plus Boat Primer

As one of the largest manufacturers of marine paints and primers, Interlux is a name you can trust for high-quality products that provide long-lasting protection for your boat finishes. The innovative technology has been leading the way for over a century in boat primers and paints, including the Interlux Pre-Kote Plus boat primer. Interlux’s commitment to research and development has helped to create a high-performance boat primer that has stood the test of time.

Pre-Kote Plus is a one part primer and undercoat that offers substrate protection with an ultra-smooth finish. Designed for use above the waterline Pre-Kote plus can be directly applied to most substrates including properly prepared metal. The lower VOC formula allows for easier application with improved flow. DIY customers will find Pre-Kote Plus to offer excellent flow, leveling, and easy to sand. Pre-Kote Plus is easy to use and the perfect foundation for your topcoat.

For an extra smooth  application should be done with a brush or roller, with a conventional sprayer being acceptable too. Interlux primer has a reduced working time with great substrate protection. It is recommended to apply 2-4 coats, depending on desired thickness. Make sure to correct surface imperfections before application. Sanding between each application is recommended for optimal application. Interlux Pre-Kote Plus is available in quarts and gallons. Each gallon covers ~440 sq/ft.

 Specifications:

• Finish: Matte
• Application Method: Brush, roller or spray
• Number of Coats: 2-4
• Coverage: 440 sq. ft/gal per coat

Associated Products:

• Thinner/Cleaner
• 2333N Reducing Solvent
• 333 Brushing Thinner
• 216 Special Thinner

Do not use this product on aluminum outdrives

How To Apply Pre-Kote Plus Primer

Interlux Pre-Kote is compatible with the following Interlux finishes: Bilgekote, Interdeck, Pre-Kote Plus, Toplac Plus, and Watertite.

• Application Method:  Brush, Roller, Conventional Spray - Pressure Pot or Siphon Cup
• Number of Coats: 2-4 As Needed
• Dry Film Thickness per Coat: 1.9 mils (4 wet mils)
• Coverage: 440 sq. ft/gal.
• Application Temp: 41°F Min. / 95°F Max.
• Thinning: Not usually required. Pre-Kote Plus can be thinned up to 10%. If thinned an additional coat may be required to achieve film thickness required to protect substrate
• Brush: Solvent resistant standard brush
• Roller: 4mm nap velour roller (If foam rollers are used a lower film build/opacity may be achieved and an additional coat required)

Note: Pre-Kote Plus must be sanded between coats.

Surface Preparation & Application

• Previously Painted Surfaces
• If in poor condition remove all previous coatings
• Wash Down with a suitable detergent, rinse with fresh water and allow to dry
• Sand with 220-280 grit paper
• Remove all sanding residue
• Wipe with 333 Brushing Thinner and allow to dry
• Barewood
• Sand with 80 - 180 grit paper
• Remove sanding dust by brushing dusting and wiping
• Wipe with 2333N Reducing Solvent
• Plywood
• Follow directions above for bare wood
• Apply Inter-Prime Wood Sealer Clear 1026
• Steel
• Degrease with solvent or suitable detergent cleaner
• Gritblast to Sa 2-1/2 - near white metal surface
• If gritblasting is not possible, grind the metal surface with 24-36 grit abrasive discs
• Grind to a uniform clean bright metals surface 50-75 micron anchor pattern
• Use an angle grinder on small areas
• Clean thoroughly and allow to dry completely
• Aluminum
• Degrease with solvent or suitable detergent cleaner
• San well using 24 - 120 grit aluminum compatible paper
• Coarser grades are recommended to achieve optimum adhesion
• Clean thoroughly and allow to dry completely
• Apply primer/undercoat as soon as possible (within 8 hours)
• Zinc/Galvanised Steel
• Degrease with solvent or suitable detergent cleaner
• Sand well using 60-120 grit paper
• Clean thoroughly and allow to dry completely
• Fiberglass
• Wipe a small area with a clean rag that been wetted with Fiberglass Solvent Wash 202
• While the surface is still wet, wipe with a clean dry rag
• Continue until the entire surface has been cleaned
• Sand with 80 grit paper
• Wipe with Fiberglass Solvent Wash 202

Application Information

For Steel & Aluminum apply 3-4 coats, for additional substrate protection apply 1 coat thinned Interprotect 2000E prior to application of Pre-Kote Plus. For Fiberglass add 1-2 coats. Apply 3-4 coats to wood. Additional coasts of Pre-Kote Plus will result in an increases level of substrate protection for all substrates. Depending on roller used, an additional coat may be required to achieve recommended total film thickness. If excessive sanding practice is used then additional coats will be required to ensure substrate protection & achieve full opacity. To give extra depth of color, blend the final coat of Pre-Kote Plus in a 50:50 blend with an approved Interlux topcoat.

Click here for Interlux Pre-Kote Plus Application Information

Frequently Asked Questions

What is Interlux Pre-Kote Plus Boat Primer used for?

Interlux Pre-Kote Plus is a one-part primer and undercoat designed for use above the waterline. It provides substrate protection and a smooth foundation for compatible Interlux finishes. The primer can be applied to most properly prepared substrates and is designed to provide good flow, leveling, and sandability.

How many coats of Interlux Pre-Kote Plus should be applied?

Apply 2–4 coats as needed to achieve the required film thickness and substrate protection. The application system calls for 3–4 coats on steel and aluminum, 3–4 coats on wood, and 1–2 coats on fiberglass. Additional coats may be needed if the primer is thinned or excessive sanding reduces film build.

What surfaces can Interlux Pre-Kote Plus be applied to?

Pre-Kote Plus can be applied to properly prepared wood, plywood, steel, aluminum, zinc or galvanized steel, and fiberglass. Surface preparation varies by substrate and may include cleaning, sanding, degreasing, or grit blasting. Do not use Pre-Kote Plus on aluminum outdrives.

How should Interlux Pre-Kote Plus be applied?

Pre-Kote Plus can be applied by brush, roller, or conventional spray. For brush application, use a solvent-resistant standard brush; for roller application, use a 4 mm nap velour roller. Thinning is not usually required, but the primer can be thinned up to 10% when necessary.

How long does Interlux Pre-Kote Plus take to become sandable?

Sandability depends on temperature. At 77°F, Pre-Kote Plus is sandable after approximately 12 hours. At 95°F, it is sandable after 8 hours; at 59°F, after 18 hours; and at 41°F, after 36 hours. The primer must be sanded between coats.

What finishes are compatible with Interlux Pre-Kote Plus?

Pre-Kote Plus is compatible with Interlux Bilgekote, Interdeck, Pre-Kote Plus, Toplac Plus, and Watertite according to the supplied application information. It can also be blended with an approved Interlux topcoat in a 50:50 mixture for the final coat when additional color depth is desired.

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