U-POL Grip#4 1K Universal Adhesion Promoter 450ml Clear Aerosol – Primer for Plastic, Metal & Painted Surfaces

The U-POL Grip#4 1K Universal Adhesion Promoter is a professional-grade solution designed to enhance paint adhesion on a wide range of surfaces. Supplied in a convenient 450ml clear aerosol can, this fast-drying formula provides a reliable base for subsequent coatings, ensuring long-lasting, high-quality finishes.

Engineered for versatility, Grip#4 can be applied directly to difficult substrates such as plastics, metals, aluminium, galvanised steel, and previously painted surfaces. Its transparent finish makes it ideal for use under a variety of topcoats without affecting final colour or gloss.

Manufactured in the United Kingdom, this premium adhesion promoter is trusted by automotive repair professionals worldwide for its ease of use, consistency, and superior results. Whether in a professional body-shop or a home garage, U-POL Grip#4 delivers dependable performance every time.

Key Features

• Universal Adhesion Promoter – Enhances paint adhesion on a variety of challenging surfaces.

• Clear 1K Formula – Transparent finish suitable under most paint systems without altering topcoat appearance.

• Versatile Application – Adheres to plastics, bare metal, aluminium, galvanised steel, and previously painted panels.

• Convenient Aerosol Can – 450ml spray ensures quick, even coverage with minimal preparation.

• Professional-Grade Performance – Trusted by body-shops for reliable, long-lasting results.

• Made in the UK – High-quality manufacturing for consistent application and finish.