Pettit Prop Coat Barnacle Barrier  – Zinc Protection for Underwater Metals

Pettit Prop Coat Barnacle Barrier 1792 is a fast-drying, zinc-rich protective coating specifically formulated for underwater metals and running gear.

Designed to bond directly to properly prepared bare metal, Prop Coat provides excellent corrosion protection while creating a smooth, hard, self-cleaning surface. Its dried coating contains an exceptionally high concentration of pure zinc, helping protect critical underwater metal components exposed to harsh marine environments.

Prop Coat can be used above or below the waterline and is suitable for a wide variety of metals commonly found on boats.

Features & Benefits

• Specifically designed for underwater metal protection

• High concentration of pure zinc in the dried film

• Helps inhibit corrosion on underwater metal surfaces

• Excellent adhesion to properly prepared clean metal

• Creates a smooth, hard protective finish

• Surface is designed to self-clean during service

• Fast-drying formula

• Can be used above or below the waterline

• Suitable for a wide variety of marine metals

• Excellent for propellers and underwater running gear

• Available in aerosol spray and brushable liquid

• Proper aerosol application will not interfere with the operation of folding propellers

Recommended Uses

Pettit Prop Coat Barnacle Barrier is ideal for protecting exposed underwater metal components, including:

• Propellers

• Propeller shafts

• Struts

• Trim tabs

• Rudders and metal running gear

• Other underwater metal hardware

Compatible Metals

Prop Coat can be applied to properly prepared bare:

• Aluminum

• Steel

• Stainless steel

• Cast iron

• Copper

• Bronze

• Galvanized steel

• Lead

Technical Information

Brand: Pettit
Product: Prop Coat Barnacle Barrier
Product Number: 1792
Color: Gray
Type: Modified Epoxy
Finish: Flat
Components: Single-component
Curing Mechanism: Solvent Release
Solids by Weight: 55%
Application Temperature: 50°F–90°F (10°C–32°C)
Application Methods: Brush, Roller or Spray
Thinner / Cleanup: Pettit 120 Brushing Thinner

Recommended Coats

Brushable Liquid: 1–2 coats
Aerosol: 2–3 coats

Coverage

Liquid Quart: Approximately 70 sq. ft.
16 oz. Aerosol: Approximately 10 sq. ft.

Dry & Launch Times – Liquid

At approximately 70°F / 21°C:

• Recoat: approximately 1 hour

• Launch: approximately 2 hours

At 50°F / 10°C, allow approximately 2 hours before recoating and 4 hours before launching.

Dry & Launch Times – Aerosol

At approximately 70°F / 21°C:

• Recoat: approximately 1 hour

• Launch: approximately 24 hours

At cooler temperatures, additional drying time is required. There is no maximum dry time before launching.

Application

For maximum adhesion and corrosion protection, surfaces should be clean, dry and properly prepared before application. Remove contaminants, corrosion and loose material before coating.

Prop Coat should be applied evenly to the prepared bare metal. The aerosol version is particularly convenient for complex running gear, propellers and other components where conventional brush application may be difficult.

Why Choose Pettit Prop Coat Barnacle Barrier?

Underwater metal components are continuously exposed to water, corrosion and marine growth. Pettit Prop Coat Barnacle Barrier provides a convenient way to protect these vulnerable surfaces with a hard, zinc-rich coating specifically engineered for marine metal applications.

Its combination of excellent metal adhesion, high zinc content, corrosion resistance and self-cleaning characteristics makes it an excellent choice for propellers, shafts, trim tabs and other underwater running gear.

Pettit Prop Coat Barnacle Barrier 1792 provides dependable zinc-rich protection for underwater metals while helping keep critical running gear clean and protected throughout the boating season.