What polished concrete finish is right for me
This is a loaded question and ever house is different. So we thought we might put together a small list of pro's and con's to the major types..jpg)
First big difference is diamond polished or grind and seal.
- Pro Diamond polished:
- hard to scratch as no topical coating to scratch off
- able to achieve a variety of non-slip levels easily
- eco-friendly greener flooring option
- low lifetime cost
- easy to refurbish
- Con Diamond Polished:
- susceptible to acid etching
- susceptible to staining
- level of exposure and artefacts determined by the concreter who installs
- Pro Grind and Seal:
- often cheaper option
- very good staining resistance
- can achieve "wet look" polished concrete
- Con Grind and Seal:
- topical coating that can scratch
- achieving non-slip requires an additive that can detract from aesthetics or cause floor to wear prematurely
- harder to refurbish
The next major question to answer is the exposure of aggregate level
Burnished concrete/cream polish Class O and A):
- Pro:
- clean seamless finish
- natural looking and easier to colour match between different pours.
- cheapest and fastest diamond polished concrete floor
- Con:
- staining that occurs before polishing can be difficult to impossible to remove
- pattern and finish dictated by the quality of helicopter work when installed
- acid etching can be much more noticeable compared to floors with exposed aggregate.
- can really only be achieved on new builds
- small aggregate and fines can be exposed during the polishing process
- level of finish dictated by levelness of floor
Hit n Miss/partial aggregate exposure (Class B):
- Pro:
- industrial look
- works on most floors (sometimes due to installation majority of aggregate will need to be exposed)
- can sometimes hide artefacts from pouring.
- Con:
- level of exposure dictated by levelness of floor
Full exposure/platinum (Class C/D):
- Pro:
- will always level the floor out
- can grind out high spots and to allow for doors without affecting the look and finish
- terrazzo look to floor
- very high end finish
- Con:
- quality of exposure dictated by installation of concrete
- artefacts such as boot prints and screed marks can be seen.
- Cold joints in pour can be obvious