Blackfriar Professional Acid Etch


A preparation solution for use on concrete and screed floors prior to sealing, coating or painting. 

Bulk Buy

£18.11 tax excl.

£21.73   tax incl.

Product Description


A preparation solution for use on concrete and screed floors prior to sealing, coating or painting. Removes excess lime dust (laitence) which can interfere with the adhesion of floor coatings.

Key features & benefits

Etches power floated, very smooth, hard or chemically treated concrete floors to key the surface and improve the adhesion of floor coatings.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)7m² per litre
Touch Dry48-72 Hours
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


questions shahida Hayat on 10/02/2019

hi can I use this on a flat mirror to etch it with the liquid


No, Blackfriar Professional Acid Etch is for use on concrete, it will not etch glass.

questions mike b on 05/07/2015

Can I put Blackfriar Professional Acid Etch on a concrete floor that has already been painted.. but badly and is not really sticking that much. will it treat it... or should I just start with some Rust-oleum 9100?


The Acid Etch will not be able to effectively prepare the concrete if existing floor paint (even if it is badly adhered) is on the floor. The best method of preparation in this instance will be to abrade the floor with a floor grinder or similar to remove the existing paint and provide a key to the concrete surface underneath. Once done the floor should be cleaned to remove any remaining dust from the grinding and then a floor coating of your choice can be applied. 

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