• Claddagh Plastering

The importance of substrates - polished plaster edition


When it comes to polished plaster, substrate preparation is very important.


Polished plaster is a decorative and beautiful architectural finish that is hand applied to replicate the natural look of stone, polished marble or industrial concrete.

Polished plaster is visually appealing when used on uneven surfaces such as archways and columns, however it will not hide imperfections in the substrate as it is a thin veneer.

Examples of poorly prepared substrates include: no primer/sealer, wall full of dust, bumpy walls and cracks not repaired properly.

Substrates need to be of sturdy build with back-blocking where required and little to no movement.

Failures in the substrate can result in flaws in the polished plaster finish, such as cracks, screw pops, delamination and plasterboard joints showing through.


To ensure a smooth installation and quality finish we recommend the substrate be finished to a level 4 or higher paint finish and we always carry out a pre-plaster inspection of the substrate prior to work commencing.


Once the substrate has been prepared, polished plaster can then be applied in multiple layers. It creates a subtle depth and movement that cannot be replicated with the likes of paint and it offers an intricate and attractive appearance to any space.


You can learn more about substrate preparation by downloading our guide at the bottom or feel free to get in touch directly for any questions you may have.



Substrate Prep
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