Metsoak DX4920 is a concentrated blend of inhibited phosphoric acid, detergents and wetting agents designed for the removal of rust, tarnish and heat treatment / welding scale from ferrous components. It is non-fuming and less aggressive than many other mineral acids but will effectively remove scale, rust and metal tarnish to a clean contamination free finish. The advanced detergent package enables the simultaneous removal of oils and greases removing the need for multiple stage cleaning processes. Metsoak DX4920 has been proven to be highly effective against many forms of hard water scale including beer and milk stone, starch protein and soap containing deposits. This makes it suitable for use in a wide range of applications across the manufacturing, reconditioning, maintenance, cleaning and food industries. Metsoak DX4920 has also found special use in the paper manufacturing industry, where it is used to remove deposits from synthetic paper forming wires. Metsoak DX4920 is suitable for use on all common metals, including stainless steel, chrome, aluminium and other hard surfaces including wood, plastic, vitreous china, ceramic tiled and painted surfaces. Components processed will be left in a slightly passivated condition which delays rusting and is suitable for subsequent painting. It is not suitable for use on copper and copper alloys which must be treated separately.

Features and benefits:
Liquid formulation
Suitable for automated dosing
Concentrated mineral acid / detergent blend
Cleans and conditions in a single process
Flexible application
Can be applied by hand, spray or immersion
Phosphoric acid based
Suitable for use on a wide range of materials
Wide operating temperature range
Suitable for use between 20 – 80°C
Non-fuming product
Safer alternative to fuming acid based products