SYSTEM 20 National Rule 4:1 High Build Primer - 1 Gallon Tin - B - U-POL

Name: SYSTEM 20 National Rule 4:1 High Build Primer - 1 Gallon Tin - B
Brand: U-POL
SKU: 423475
Price: 66.34 USD
Availability: InStock

Part #: 2275

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The U-POL 2275 SYSTEM 20 National Rule 4:1 High Build Primer is a professional-grade, black primer designed for automotive and industrial refinishing applications. This 1-gallon tin offers superior build and surface leveling properties, providing a robust foundation for subsequent coatings. It is engineered to meet National Rule VOC compliance, ensuring reliable performance in professional workshops.

Key Features

Exceptional Build and Leveling: Delivers excellent film build and surface leveling properties to effectively fill imperfections and create a smooth, even substrate.
Versatile Application: Functions as a primer filler (4:1 mix), primer surfacer (4:1:1 mix), or primer sealer (4:1:2 mix), offering flexibility for various repair needs.
Easy Sanding: Formulated for effortless wet or dry sanding, facilitating efficient preparation and a refined finish.
Direct-to-Substrate Capability: Can be applied directly to bare metal, over most plastics, and unsanded E-coat, streamlining the repair process.
Tintable Formula: Allows tinting with up to 10% urethane mixing base, aiding in achieving optimal color match and reduced basecoat consumption.

Applications

This U-POL SYSTEM 20 High Build Primer is suitable for a broad range of repair scenarios, from targeted spot repairs to extensive large panel refinishing. It adheres effectively to numerous substrates commonly found in automotive and industrial environments, including bare metal, properly prepared aluminum and galvanized surfaces, GRP (Glass Reinforced Plastic), SMC (Sheet Molding Compound), fiberglass, polyester filler, and existing OEM finishes.

For optimal adhesion when working with aluminum or galvanized steel components, the use of an acid etch primer, such as U-POL ACID #8, is required. When applying to plastic components, a suitable adhesion promoter, like GRIP #4 1K Universal Adhesion Promoter, is recommended for best results.