Gtechniq W4 Citrus Foam is a high-performance, biodegradable snow foam designed to safely remove heavy dirt, traffic film, and road grime before contact washing. Developed for professionals and detailing enthusiasts, W4 minimizes swirl marks and wash-induced scratches by loosening contamination at the earliest stage of the wash process.

Advanced Citrus Cleaning Technology

The advanced citrus-based formula breaks down organic dirt, grease, and road residue quickly and effectively. Unlike aggressive alkaline pre-washes, W4 Citrus Foam is safe on paintwork, clear coats, ceramic coatings, PPF, and wax layers when used as directed.

Optimized for Foam Cannons and Pump Sprayers

W4 produces a dense, clinging foam that maximizes dwell time, allowing active ingredients to work longer on vertical surfaces. This ensures more dirt is removed before rinsing, improving overall wash safety and efficiency.

Professional Results, Minimal Effort

Whether used as a snow foam or diluted for use in a pump sprayer, W4 delivers consistent, repeatable results. It is ideal for regular maintenance washes as well as heavily soiled vehicles.

Key Features

• High-foaming citrus-based pre-wash cleaner

• Reduces swirl marks by minimizing contact washing

• Safe for ceramic coatings, PPF, wax, and sealants

• Biodegradable and environmentally responsible formula

• Suitable for foam cannons and pump sprayers

Use Cases / Applications

• Touchless pre-wash stage before hand washing

• Maintenance washing of coated and uncoated vehicles

• Removal of heavy road grime, insects, and traffic film

• Professional detailing and enthusiast car care