Title

Unifiber High-Build Primer Green – Professional Undercoat for Fiberglass and Wood

Price range: 18,00 € through 49,00 €

Unifiber High-Build Primer Green

Unifiber High-Build Primer Green in a characteristic green shade. Designed to provide superior adhesion and protection for fiberglass (GRP) and wood hulls before antifouling application.

Description

🚀 Unifiber High-Build Primer Green

Unifiber Primer is a premium-grade, high-build undercoat specifically engineered for marine use. Its unique green formula is designed to create a thick, protective barrier that levels surface irregularities while ensuring a rock-solid bond between the hull and the final antifouling layer.


⭐ Main Features

✔ High-Build Formula Excellent filling properties that help smooth out small imperfections, pores, and scratches on the substrate.

✔ Enhanced Adhesion Formulated to anchor deeply into fiberglass (gelcoat) and wooden surfaces, preventing the subsequent paint layers from flaking.

✔ Visual Application Aid The distinct green color acts as a “control layer,” making it easy to see where the primer has been applied and ensuring full coverage of the hull.

✔ Waterproof Protection Provides an additional layer of moisture resistance, helping to preserve the integrity of the hull’s substrate.


🛥 Fields of Application Ideal for:

  • New fiberglass (GRP) hulls after proper degreasing.

  • Bare wooden hulls (as an insulating and filling base).

  • Restoring old hulls where the original gelcoat or paint is worn.

  • Providing a high-contrast base for blue, black, or green antifouling paints.


🛠 Technical Advantages

✔ Great “body” and opacity for fast surface preparation.

✔ Easy to sand if a perfectly smooth finish is required.

✔ Compatible with most self-polishing and hard-matrix antifoulings on the market.

✔ Resistant to the harsh marine environment and temperature changes.


📝 Instructions for Use Preparation

  • Surface must be clean, dry, and free from wax, oil, or salt.

  • On new gelcoat, de-wax thoroughly with a specific solvent and sand lightly (Grit P120-P180). Application

  • Stir the product vigorously before use.

  • Apply 1-2 uniform coats by roller or brush.

  • Respect the minimum and maximum overcoating times before applying the antifouling to ensure a chemical bond. Cleanup

  • Clean tools immediately after use with a synthetic or nitro thinner.


✅ Final Result

A perfectly prepared, high-thickness green base that maximizes the performance and lifespan of your boat’s antifouling system.

Technical Specifications

Technical Specifications

Customer Reviews

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“A reliable company, professional-quality products, quantities suitable for DIY projects, prompt phone support, and professional technical advice at reasonable prices—finally, a go-to place! Well done 👍”

Rated 5 out of 5

“An excellent salesperson who, above all, knows his stuff—he understands what he’s selling and clearly explains how to use it, providing all the necessary information. Plus, the products are high-quality and offer excellent value for money. The owner and his staff are kind and professional in a way that’s hard to find anywhere else these days.”