Description

Metsoak DX4920 – 25L | Phosphoric Acid Metal Cleaner & Descaler

Metsoak DX4920 is a concentrated phosphoric-acid-based cleaning and descaling solution designed for fast and effective removal of rust, heat tint, welding residues and metal contamination from ferrous components.
The formulation combines inhibited phosphoric acid with advanced detergents and wetting agents, allowing the product to remove rust, scale, heat treatment residues, oil and grease in a single operation.

Unlike many aggressive mineral acids, Metsoak DX4920 is non-fuming, easier to handle and safer to use, while still delivering a clean, bright, contamination-free finish.

---

Features

• Liquid, easy-to-dose formulation

• Concentrated blend of inhibited phosphoric acid and detergents

• Removes rust, heat tint, welding residues and metal stains

• Cleans and degreases in one single process

• Can be used manually, by spray or in immersion tanks

• Suitable for a wide range of ferrous materials

• Non-fuming → safer alternative to hydrochloric acid-based cleaners

• Effective between 20°C and 80°C

---

Benefits

• Restores metal surfaces to a clean, uniform finish

• Reduces the need for multiple cleaning stages

• Improves process efficiency in workshops and industrial environments

• Safe to handle compared to stronger, fuming mineral acids

• Ideal for components contaminated with both rust and oil/grease

---

Application Methods

Metsoak DX4920 may be applied by:

• Manual brushing/wiping

• Low-pressure spray application

• Immersion / soak tanks

The advanced wetting agents ensure excellent penetration into tight areas, seams and welds.

---

Safety Information

Metsoak DX4920 contains phosphoric acid and is classified as corrosive.
Use appropriate PPE including gloves, goggles and protective clothing.

Do not use on:

• Aluminium

• Zinc

• Tin

• Galvanised surfaces

After treatment, rinse thoroughly with water. Ensure good ventilation when using in enclosed areas.

---

📄 Technical Data