Witch's Brew: Iron + Rust Remover
Decontaminate. Dissolve. Defend.
Witch’s Brew is Chem-X’s dedicated iron and rust remover, engineered to dissolve embedded ferrous particles and surface rust without harming paint, wheels, or trim. From brake dust fallout to orange specks on white paint, Witch’s Brew safely clears away contamination and restores a clean surface—making it a must-have for paint correction prep, wheel cleaning, and maintenance washes.
Whether you're detailing a daily driver or maintaining heavy-use equipment, Witch’s Brew delivers powerful decontamination with visual feedback you can trust.
Shop Witch's Brew: Iron + Rust Remover
What Is Witch’s Brew?
Witch’s Brew is a pH-balanced, reactive iron and rust remover that targets iron oxide buildup on painted surfaces, wheels, glass, and metal. It works by chemically dissolving iron particles—such as brake dust and industrial fallout—allowing them to be rinsed away without scrubbing or abrasion.
As it reacts with iron, Witch’s Brew turns purple, giving you a clear visual of where contamination is being removed.
What Does It Remove?
- Brake dust baked onto wheels or body panels
- Rail dust and fallout embedded in clear coat
- Surface rust or orange specks on paint
- Iron buildup on chrome, stainless, and aluminum
- Rust runoff stains on trailers, frames, and hardware
It’s the perfect prep step before clay bar, polishing, or applying a ceramic coating.
💡 Key Features & Benefits
| Feature | Benefit |
|---|---|
| Color-Changing Formula | Turns purple as it reacts with iron for clear visual feedback |
| Safe on Most Surfaces | pH-balanced—safe on paint, wheels, trim, and clear coat |
| Spray-on, Rinse-off | No scrubbing needed for most contamination |
| Fast-Acting | Breaks down embedded particles in minutes |
| Ideal for Paint Correction Prep | Removes bonded contaminants before polishing or coating |
Where to Use Witch’s Brew
- Painted body panels (especially white/light-colored vehicles)
- Wheels and brake calipers
- Chrome and stainless trim
- Glass surfaces
- Metal equipment or trailers with rust streaks
- Frames or undercarriages with surface rust
How to Use Witch’s Brew
Application Steps
- Shake well before use
- Spray directly onto the contaminated surface
- Allow to dwell for 2–5 minutes
- Watch for purple bleeding (this indicates reaction with iron)
- Rinse thoroughly with pressure washer or hose
- Repeat if needed for heavy buildup
💡 Do not let dry on any surface. Always work in the shade and rinse promptly.
Best Practices & Pro Tips
- Use on cool surfaces only—avoid direct sunlight or hot panels
- For wheels, apply before using wheel or tire cleaners to break down iron first
- Agitate with a soft brush for extreme buildup
- Use Witch’s Brew before clay bar or polishing for best results
- Rinse completely to avoid streaking, especially on glass or chrome
⚠️ Surface Safety Notes
| Surface | Safe? | Notes |
|---|---|---|
| Clear coat | ✅ Yes | Ideal for pre-polish or ceramic prep |
| Glass | ✅ Yes | Great for removing rail dust |
| Raw aluminum | ⚠️ Caution | Spot test first—prolonged exposure may dull finish |
| Wheels | ✅ Yes | Perfect for brake dust removal |
| Vinyl wraps | ⚠️ Caution | Test first on matte/satin finishes |
Final Thoughts
Witch’s Brew: Iron + Rust Remover is a powerful, safe, and effective tool for removing embedded iron particles and rust from virtually every part of your vehicle. Whether you're prepping for polish, deep-cleaning wheels, or removing rust stains from trailers, Witch’s Brew delivers the kind of decontamination you can see working.
Spray it. Watch it bleed. Rinse it away.