Koch-Chemie × THE FINISHER THE FINISHER "HelloWhite" AntiGilb 1000ml

THE FINISHER × Koch-Chemie „HelloWhite“ — AntiGilb for clean waterlines & fresh whites

How does HelloWhite work? — The AntiGilb chemically loosens waterline yellowing and light rust/harbour film, brings the white back to gelcoat and glossy painted surfaces, rinses off neutral, and works as a targeted intermediate step before you protect with WaxPolish or BodyGuard.

THE FINISHER HelloWhite AntiGilb is your targeted stain remover against gelcoat yellowing at the waterline, bow, transom and around fittings. The active, controlled-flash formula softens organic „Tea-Stains“ and light metal/harbour film so you can rinse them off without harsh mechanics. After treatment the surface looks visibly fresher and makes the ideal base for a wax- or spray-based finish. In the system, THE FINISHER HelloWhite AntiGilb sits between the main wash (CleanMarine) and protection (WaxPolish/BodyGuard) – right where gelcoat shows those yellowed shadows.

• Targeted de-yellowing: loosens waterline yellowing and light rust/harbour film in a controlled way – no sanding marathons and no grey afterimage.
• Clean handling: wets evenly, works in fast, rinses off neutral; ideal for spot areas instead of „all or nothing“.
• Marine system fit: use after CleanMarine, then lock it in with WaxPolish (deep gloss) or BodyGuard (hydrophobicity).

AntiGilb – cause, how it works & reading the material

AntiGilb tackles the typical gelcoat yellowing („Tea-Stains“) that comes from salts, organic residue and light metal traces. THE FINISHER HelloWhite AntiGilb carries in active ingredients with strong wetting, chemically loosens the discolouring layer and makes it lift off with water. Because the formula flashes off in a controlled way, you work fast, on target, and without dried-on edges. It suits smooth gelcoat and high-gloss marine-painted panels; keep it off Non-Skid, vinyl, teak and polycarbonate/acrylic windows so each material keeps the right feel and look.

On-board use – waterline, fittings & transom

Use starts with a clean base: wash the boat in the shade with CleanMarine and rinse with fresh water. Spray HelloWhite onto the wet surface section by section from bottom to top, or apply with a pad, let it dwell 1–3 minutes (don't let it dry), agitate lightly with a soft pad/brush if needed, then rinse generously with fresh water. Around metal fittings, drain edges and trailer bunks work quickly and take off any excess straight away. After that a short re-wash/rinse is worth it so the pH is back to neutral – now the surface is ready for WaxPolish or BodyGuard.

Result, limits & building protection

Result is a visibly brightened, even white/light surface with no yellow shadows – ideal „before protection“. Limits: deep oxidation, hard deposits and older, dark-brown waterlines need polishing first (PerfectOne) or local sanding by pros. After HelloWhite, saturate the look with WaxPolish or lock it in hydrophobic with BodyGuard; regular washes with CleanMarine stop it building back up fast. For vinyl upholstery, VinylTexClean/VinylGuard stays in charge, windows are SeaYou's job – that keeps the care plan cleanly split and repeatable.

Common questions about THE FINISHER × Koch-Chemie „HelloWhite“ — AntiGilb

Which surfaces do I use HelloWhite on?

On smooth gelcoat and glossy marine-painted panels at the waterline, bow, transom. Don't use it on Non-Skid, teak, vinyl or plastic windows.

How long should it dwell?

1–3 minutes in the shade. Don't let the product dry; in the heat work shorter and re-mist if needed. Always rinse generously with fresh water afterwards.

Do I have to neutralise?

A thorough rinse and a short re-wash with CleanMarine are enough. Rinse cloths/pads out with fresh water afterwards.

Does HelloWhite remove rust spots too?

Light rust shadows, yes. Deep pitting or rust speckle need a careful polish (e.g. PerfectOne) or specialised treatment depending on the material.

What's the right order?

Wash with CleanMarine → spot-de-yellow with HelloWhite → rinse/re-wash → WaxPolish (deep gloss) or BodyGuard (hydrophobicity). Treat windows/vinyl separately.

Last updated: 01.11.2025 — Author: Daniel (Detailing1)