MPU Coarse

£14.03£30.30 + VAT

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Specially developed for use when brush plating plastic and other non-conducting items.


HS Code: 3824 99 70

MPU Coarse to be used to polish back PP Copper when plating on plastic or other non-conductive surfaces. For instructions on use and guidance with making the best choice from our range of preparation products, please click HERE to see our Electroplating Manual.

Top tip! Try applying our MPU Coarse and all of our MPU products with a damp sponge – it won’t shred as tissue paper will.

Features Used for
Specifically produced for brush plating plastic and other non-conductive surfaces Polishing back the layer of PP Copper to a mirror bright finish (if required). PP Copper is the first layer that’s plated over the Conductive Ink.
Saves money MPU Coarse polishes the copper to a high shine – a cheaper alternative to polishing back any subsequent layers of silver or gold


Choosing the right Spa Plating polishing/cleaning compound for your job

We’ve put together a quick reference guide to help you choose the right cleaning and polishing compound for every stage of the brush plating process. One of the most important stages for successful electroplating is the surface preparation stage and our MPU will be the one you use most often. It is the ultimate all-in-one cleaning and activating compound and helps you to achieve a water-break-free surface.
If the surface of your work is very recessed, or if it is very large, we recommend cleaning and activating with ActiClean.
If the surface you are plating is matt and not highly polished, the final surface will also be matt. Electroplating will not turn a matt surface shiny.

Quick reference table for hand polishing

Name of Polish Degree of Cut, from smallest (*) to greatest (*****) Uses and applications Needs to be cleaned off before plating?
MetaSeal * Seals the surface of items you have plated. Brings out the final lustre on gold plated items. Yes
Spa Plating Silver and Gold Cloth ** Brings out the final lustre on silver plating. Sometimes gold plate can dull off at the edges of your work as your plate; Goddard’s can be used after plating to bring back the shine. Yes
MPU Fine
*** Cleans and activates the surface of work before plating and helps to achieve a water-break-free surface. For more information on achieving this kid of surface please see our guide Surface preparation for electroplating – achieving a water break free surface. MPU contains a fast cutting, non-scratch abrasive that can be used on small, non-recessed areas and can replace the MetaPrep stage.Very useful for cleaning and activating between plating stages.
MPU Fine – great for cleaning and re-activating gold flash layers while plating.
MPU Coarse – ideal for polishing back a plated layer of our PP Copper while plating on non-conductive surfaces.
 MetaPrep  **** Removes traces of polishing compound and is a replacement for solvent if this unavailable. Yes
Autosol  ***** Removes scratches from steel, stainless steel, nickel and other hard metals. Can be used to remove old plate, if necessary. Yes

General guide;

Certain small items, for example Swabs, Nibs and Plating Pens can be sent by normal post within the UK

  • The courier option for UK deliveries is FedEx
  • Free UK mainland delivery available on orders over £200
  • International orders usually 3-5 working days.

For all price quotations for deliveries, please add your items to our shopping cart. You will be able to see the shipping costs by clicking on the ‘Calculate shipping’ button in the cart and before checking out.

Please click on the link below to download the SDS for this product: