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There are several different types of polished concrete availabled to you. The type of polished concrete will really depend on the quality of concrete you have. The type of polished concrete will also be affected by price, equipment and skills. I will go into further detail of each option but option 1 has a few names; traditional polished concrete and grind & seal. Option two; diamond polished concrete, mechanical polished concrete, HTC Superfloor, Hiperfloor, Pyrafloor and many more (they are all the same the difference is based on the different products used).

Option 1: Traditional Polished Concrete AKA Grind & Seal

This process is generally a three pass grind, grind with #25grit diamonds, #60 grit diamonds and #120grit diamonds and then the floor is sealed with either a clear epoxy, water based sealer or polyurethane. This option is good for concrete that isnt great quality 25MPA and below (standard house slabs). This is also the easiest option for beginers as it is only a three pass grind and requires a lot less diamonds to complete.

The next question you have about the floor is exposure level. Partial aggregate exposure is that hit n miss look (no you dont grind some parts and not others) rather you grind the floor flat, any high spots get ground more exposing more stone and low spots get ground less therefore exposing less stone. With this option you grind 1-3mm from the floor (this is important when looking at door heights and skirting boards). The other option is full stone exposure and thats where you keep grinding the floor flat and even until you get uniform stone exposure. With this one you will generally grind 3-10mm from the floor. 

All of the stone exposure occurs with the first cut and the other two passes are just to remove scratches. You then need to apply the sealer. I will go through all the sealers another time but if you have questions please just contact me.

 

 

 


 Option 2: Diamond Polished Concrete

This is where the shinniness of the concrete comes from the polishing process like marble. Generally for this option to work the concrete needs to be new and 32MPA or a commercial/retail slab (even older places used better concrete for these applications). This type of polished concrete has a few more options, you have three different levels of stone exposure; none (only good in brand new slabs), partial and full. The process with this option is much more involved and is a 12 step process so not for the faint hearted. This option is usually reserved for the professionals but if you want to learn how to do it for your benchtop please dont hesitite to contact us and we can go through how it should be done. The main difference with this type of polished concrete is all the gloss level is achieved with polishing so you can easily have a matte, satin or gloss finish. The sealer used is also penetrating so it wont wear off over time.