Awlgrip Yacht Paint Application Guide

Overview of Awlgrip Coating Systems

Awlgrip is a professional two-component polyurethane yacht coating system designed to provide exceptional gloss, chemical resistance, and long-term durability in marine environments.

A typical Awlgrip paint system is made of multiple layers, each designed to perform a specific role in the coating structure.

Typical Awlgrip Paint System

Each stage plays a critical role in adhesion, durability, and final cosmetic appearance. Skipping steps or improper preparation is the most common cause of coating failure.

Surface Preparation Fundamentals

Proper surface preparation is the most critical step in achieving a professional Awlgrip finish. Up to twelve preparation stages may be required before the final coating is applied.

Key Preparation Goals

• Remove contamination
• Create proper mechanical adhesion profile
• Ensure a dry surface
• Prevent chemical contamination
• Ensure proper coating compatibility

Standard Pre-Paint Cleaning Process

The Two Cloth Solvent Cleaning Method

This is the recommended solvent wipe method used throughout professional Awlgrip systems.

• Cloth 1 — soaked with solvent to dissolve contamination
• Cloth 2 — dry cloth used to lift contamination from the surface

Always work small areas approximately 1 m² (10 ft²) to prevent solvent drying before removal.

Preparing Fiberglass and Gelcoat Surfaces

Fiberglass and gelcoat substrates are the most common surfaces used in marine refinishing. Proper sanding and cleaning ensures maximum adhesion of primers and topcoats.

Preparation Procedure

Common Problems With Gelcoat Surfaces

• Wax contamination
• Osmotic blister repair areas
• Uneven fairing surfaces
• Previous incompatible coatings

In cases of heavy oxidation or damaged gelcoat, grinding may be required before priming.

Preparing Aluminum Surfaces

Aluminum is one of the most demanding substrates in marine painting. Improper preparation can lead to rapid corrosion, adhesion failure, and blistering under the coating system.

Aluminum Preparation Procedure

Important Aluminum Preparation Notes

• Aluminum must be primed immediately after sanding to prevent oxidation.
• Do not leave freshly sanded aluminum exposed to air for extended periods.
• Corrosion protection primers such as Max Cor CF are commonly used.
• Never apply topcoat directly to bare aluminum.

Preparing Steel Surfaces

Steel substrates require aggressive preparation to remove corrosion and ensure proper coating adhesion. Steel preparation must eliminate rust, mill scale, and surface contamination before primers are applied.

Steel Surface Preparation Steps

Common Steel Surface Problems

• Flash rusting
• Mill scale contamination
• Surface pitting
• Moisture contamination

Any exposed steel must be primed immediately after preparation to prevent flash rusting.

Preparing Wood Surfaces

Wood substrates require sealing and stabilization prior to applying Awlgrip coating systems. Moisture control is essential when painting wood.

Wood Surface Preparation

Important Wood Preparation Considerations

• Moisture content must be controlled before coating.
• All oils and natural resins must be removed.
• Wood expansion and contraction must be accounted for.

Preparing Previously Painted Surfaces

When refinishing previously painted surfaces, the most important step is determining compatibility with existing coatings.

Inspection Process

• Check for adhesion failure
• Identify incompatible paint systems
• Inspect for cracking, blistering, or delamination

Preparation Procedure

When Full Removal is Required

• Unknown coating systems
• Severe blistering
• Poor adhesion of previous coatings
• Multiple incompatible paint layers

Sanding Guide for Marine Coatings

Proper sanding creates the mechanical profile required for coating adhesion. The correct sanding grit varies depending on the stage of the coating system.

Fairing Compounds and Surface Correction

Fairing compounds are used to correct imperfections in the hull or superstructure before the final paint system is applied. Fairing creates a smooth and uniform surface by filling low areas, scratches, or surface distortions.

Common Fairing Materials

• Awlfair LW Fairing Compound
• Epoxy fairing compounds
• High build surfacing primers

Typical Fairing Procedure

Block Sanding Technique

Professional painters use long sanding boards to identify high and low spots across the surface. The board bridges over low areas and cuts down high areas, creating a uniform profile.

• Use long sanding boards
• Sand in diagonal cross patterns
• Guide coats help reveal imperfections

Awlgrip Primer Systems

Primers provide corrosion protection, adhesion, and surface leveling. The primer system selected depends on the substrate and the condition of the surface.

Common Awlgrip Primers

Awlgrip 545 Epoxy Primer Guide

Awlgrip 545 Epoxy Primer is one of the most widely used marine primers for sealing surfaces before applying topcoats. It provides excellent adhesion, corrosion protection, and sanding characteristics.

Key Benefits

• Excellent adhesion to multiple substrates
• Corrosion resistant epoxy formula
• Seals fairing compounds and surfacing primers
• Compatible with Awlgrip and Awlcraft finishes

Compatible Substrates

• Fiberglass
• Gelcoat
• Aluminum
• Steel
• Wood
• Previously painted surfaces

Mix Ratio

Typical Application

• Spray application preferred
• Brush and roll also acceptable
• Apply 2–3 coats depending on coverage

Recommended Film Thickness

• Wet Film Thickness: ~3–4 mils
• Dry Film Thickness: ~1.5–2 mils

Induction Time

Allow approximately 15 minutes after mixing before application to ensure proper chemical reaction between base and converter.

Primer Sanding

After primers cure, sanding prepares the surface for final topcoat. The sanding stage removes minor imperfections and creates a uniform profile for the paint system.

Typical Primer Sanding Process

Guide Coat Usage

A guide coat is a light mist of contrasting color used during sanding. It highlights low spots, scratches, and imperfections that require additional fairing or sanding.

Quick Build Primer Systems

Quick Build primer systems are designed to reduce the number of application steps required to produce a high quality Awlgrip finish.

Benefits

• Faster application process
• Reduced sanding stages
• Color matched primer bases
• Improved workflow for professional yards

Quick Build systems can often allow topcoat application without extensive sanding depending on the coating schedule.

Awlgrip Topcoat Systems

Awlgrip topcoats are two-component polyurethane coatings designed for exceptional gloss, durability, and chemical resistance in marine environments. These coatings are widely used on yachts, commercial vessels, and high-end refinish applications.

Main Awlgrip Topcoat Options

Awlgrip vs Awlcraft

Spray Application Guide

Spray application produces the highest quality finish for Awlgrip coatings. Proper equipment setup and spray technique are critical for achieving a smooth, high-gloss marine finish.

Professional Spray Gun Types

• SATA
• DeVilbiss
• Iwata

Typical Spray Tip Sizes

Basic Spray Technique

3 Step Fan Check

• Verify atomization pattern
• Adjust fluid flow
• Adjust air pressure

Always spray a test panel before starting a full application.

Brush and Roll Application

Awlgrip products can also be applied using the brush and roll method. This technique is commonly used for smaller vessels or areas where spray equipment is not practical.

Recommended Tools

• High quality solvent resistant foam rollers
• Fine bristle brushes
• Marine grade paint trays

Brush and Roll Technique

When applied properly, brush and roll finishes can achieve very high quality results similar to sprayed finishes.

Environmental Conditions for Painting

Environmental conditions play a major role in the success of marine coating applications.

Ideal Conditions

• Temperature: 55°F – 105°F
• Humidity: below 85%
• Surface temperature above dew point

Dew Point Rule

Common Moisture Problems

• Loss of gloss
• Blistering
• Rough finish
• Water spotting

Awlgrip Cure Cycles

Awlgrip polyurethane coatings cure in three stages as the chemical reaction progresses and the coating hardens.

Cure Stages

Common Paint Defects and Causes

Awlgrip Paint Maintenance

Proper maintenance ensures the long-term performance and gloss retention of Awlgrip coatings. Unlike automotive finishes, Awlgrip coatings are extremely durable and require minimal polishing.

Routine Cleaning

• Wash surfaces regularly with mild boat soap
• Use soft microfiber cloths or marine wash mitts
• Rinse thoroughly with fresh water
• Avoid harsh detergents or abrasive cleaners

Recommended Cleaning Frequency

Waxing Awlgrip Finishes

Traditional Awlgrip polyurethane finishes should generally not be waxed during the first 60–90 days after application while the coating completes its full cure cycle.

• Use Awlcare protective polymer system if desired
• Avoid abrasive compounds
• Never machine buff traditional Awlgrip topcoat

Repairing Awlgrip Finishes

Minor damage such as scratches or chips can be repaired using proper sanding and repainting techniques.

Typical Repair Procedure

Repair Considerations

• Color matching may be required
• Metallic finishes require careful blending
• Large repairs may require panel repainting

Awlcraft Finish Repair

Unlike traditional Awlgrip polyurethane coatings, Awlcraft finishes can be machine polished and buffed to repair minor imperfections.

Buffing Process

This process restores gloss and removes minor scratches or sanding marks.

Common Paint Defects and Solutions

Professional Tips for Perfect Awlgrip Finishes

Professional painters understand that preparation, environment control, and equipment setup are the keys to producing a flawless yacht finish.

Need Help With Your Awlgrip Project?

Fiberglass Florida supplies professional marine painters, boat builders, and DIY boat owners with the full Awlgrip coating system including primers, reducers, converters, abrasives, and application equipment.

Call our technical team at 321-639-3046 for help selecting the correct Awlgrip products for your project.