De-rust, Degrease & Neutralise - Phosphate Degreasing for Metals

photo showing the product container and label of our degreasing and de-rust product

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£39.00

A neutralising phosphate degreaser and rust anti-bloomer. It can be used to clear traces of corrosion from materials without altering the paint and, at low concentration, leaves a film of iron phosphate. It is suitable for ferrous and non-ferrous metals. It removes oxides that damage surfaces.

Netphos 50 should be used to prepare metal surfaces for painting or other types of product finishing. It can be used to remove rust, to degrease and phosphate surfaces and to passivate surfaces preparing them for storage.

Ideal for removing traces of rust, from sound surfaces, without damaging the paintwork and, at low concentrations, it will leave a layer of iron phosphate on the treated surfaces. It is suitable for use with both ferrous and non-ferrous metals.

NETPHOS 50 is used to de-rust mechanical parts to provide a bonding base for paint. The treated parts are also passivated so can remain unprotected for several weeks without risk of corrosion forming. Also, the composition of Netphos 50 allows for the de-rusting and passivation of slightly greasy parts.

Netphos 50 should be used diluted in clean water and items can be either sprayed or submerged. The solution should be used at ambient temperature at a dilution between 10% and 50%. We recommend undertaking tests to establish the optimum concentration and contact time for your requirements.

In addition to this Netphos 50 we have NETPHOS 50 GEL which has the same properties as this liquid product only in a gel form which can be very useful when treating pieces that are in-situ or verticle.

Appearance - light green liquid
Solubility - soluble in all proportions in water
Density - 1.240
Odour - Aromatic, non toxic
Dilution - 10%-50% depending on use

When using Netphos 50 you should first undertake tests to establish the best concentration to match your particular requirements. We recommend a dilution between 10% and 50%. Netphos 50 should be diluted in clean water and used at ambient temperature (no heating required). For best results, your items should be either sprayed with the Netphos 50 solution or submerged.

If you are removing rust then the parts should be immersed in a bath for a few minutes. Once the rust has completely disappeared, the parts should be drained, rinsed with clean water, and air-dried. They can then be painted directly.

For best results, it is recommended to skim off any grease that may form on the surface of the solution.

Must I heat the water in a tank?

There is no need to heat the water if you are making a bath to submerge your items in. Netphos 50 is best used at ambient temperatures however, in very cold weather, you may heat the water very slightly which can increase the speed of treatment.

How can I skim the surface of the tank?

If products have oil on them prior to treatment then you will find that the degreasing properties of Netphos 50 will remove it and much of it will float to the surface of the tank when the solution is settled. The best method of removal does depend upon the amount of pieces you are cleaning but a good starting point is to either have the surface water cascading into a filtration material or just collect the surface water and pour it onto filtration material where it hold the oil and you can return the filtered solution to the tank.

We have a number of automatic filtration systems that can remove the solution, filter the oil and return the filtered solution to the tank and if you would like further information then please just CONTACT US.

If I spray this then how long should I leave it before rinsing?

The ability to spray Netphos 50 is one of its big advantages as you are not restricted to a treatment tank nor are you restricted to having to dismantle parts before they can be treated, however, you should ensure that you are still treating the surfaces properly. Always conduct a small test on an area before undertaking largescale treatments, this allows you to ensure you are using the correct concentration and contact times. Regarding contact time, this will vary depending upon the treatment you are doing but you should be looking at between 5-10 minutes. Remember that contact time and concentration do work together so a higher concentration can result in a lower contact time but you should be sure that the concentration is not too high that damage could be caused. It is for this reason that we recommend undertaking a test spray.