£10.50£205.00 +vat @ 20%

Free Delivery

On orders over £90.00+VAT, up to 20Kg.

Delivery Details

Free Shipping UK mainland (Most Destinations)

Free Standard Shipping (not next day) on orders worth £90 +vat or more, which also weigh 20kg or less to non-remote, UK mainland locations.
Free shipping is shown at checkout on valid orders

Rustbuster intend to ship all orders within 24 hour via economy carriage shipping, this can be next day but could be up to 2 days.

Next day delivery DOES NOT include Saturday or Sunday. Any next day orders placed on a Friday will be received on Monday, as Saturday is not included as a working day.

Rustbuster Standard Economy shipping is £8.50+vat for up to 20kg.

Remote areas/Scottish Highlands and non-UK Mainland areas may be subject to additional charges and a longer delivery time. This is determined by our couriers not Rustbuster.

Northern Ireland and Ireland
Up to 20kg of Hazardous goods can be sent, this currently costs £25.00+vat, we do however have a Stockist in Ireland and this may workout a more cost effective way to purchase.

International shipping
International shipping prices vary, please contact Rustbuster if your country is not listed at Checkout.

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For more product information or have general question, please contact us.

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Product Details


Phos-Kleen B is a phosphoric acid-based surface treatment for application to steel surfaces before painting. It is frequently used for light surface rust removal before painting vehicle body panels or other open surfaces. Phosphating in this way is generally accepted as the most effective method of keeping a steel surface rust-free.

  • Phos-Kleen B will phosphate the steel’s surface and passivate any rust spots within the steel’s micropores.
  • The rust will be chemically changed into iron phosphate and completely neutralised.
  • The surface will be left a blue-grey colour and once any salt is removed (see below) is ready for painting.


A ‘before and after’ picture demonstrating Phos-Kleen B’s performance.

You can purchase Phos-Kleen B in three ways:

  • Phos-Kleen B only (1ltr or 5ltr).
  • Value packs including Chlor-X Salt Remover (direct to surface formula)and Phos-Kleen B.
  • Full metal ready kits complete with 1ltr Phos-Kleen B, 1ltr Chlor-X Salt Remover (direct to surface formula), 1ltr SP10 Cleaner/Degreaser and two coarse Scotch-Brite pads.

Experiencing Issues with Phos-Kleen B, click here.


Product description A clear liquid high grade of phosphoric acid and industrial strength soaps.
Directions If necessary, clean and degrease the surface first (e.g. with Rustbuster SP10).

Best reactions occur when full wetting of the surface can occur, if there are contaminates on the surface you’ll get a patchy reaction.

Apply Phos-Kleen B to surface rust sparingly by brush, spray bottle or Scotch-Brite pad and allow time for the product to work and dry.

Once applied, the metal will have a blue-grey colour. Allow the surface to thoroughly dry (ideally overnight). If the surface colour once dry is a mixture of blue/grey and white the Phos-Kleen hasn’t fully wetted the surface. This discolouration means that the surface still requires further de-greasing. Please repeat the process.

Cleaning Brushes and equipment used can be washed clean in fresh water. However, once used in Phos-Kleen B we would not recommend using these brushes in any other liquid/paint.
Safety Wear suitable protective clothing, gloves, mask, eye and face protection.
Material Safety Data Sheet Click Here
Technical Data Sheet Click Here
Rusty's Top Tips from Rustbuster

Hello Corrosioneers!

RUSTY here, for handy tips and guides on how to get the best from our Rust busting products, check out my helpful guides at Rusty’s Tops Tips

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