Concrete polishing is no place for cost cutting

In the concrete polishing business, the cheapest quote will usually buy you the worst job. I get probably 10 jobs a year where I am called in to fix the work done by the lowest bidder.

The latest was in a Melbourne business that had just finished a large office extension. The architect had specified Geocrete to polish the floors, but the client decided to select a lower quote.

The result? An uneven, lifeless floor that looked little better than raw concrete when it should have been beautiful – black oxide concrete with 80% basalt and 20% white quartz.

Working long hours over a Friday night to Sunday evening (the client did not want to lose any trading time), I redid this 80 square metre floor from start to finish.

I ground off the top five millimetres to get it back to a base floor, then applied my GeoshineTM polishing system to produce a high-gloss finish.

This included 15 grinding and polishing steps, starting at 30-grit diamond heads and going up to 3000-grit, with 10 applications of premium potassium, lithium and colloidal silicate densifiers, which made the concrete incredibly hard.

I also spent a lot of time on my knees doing hand grinding around all the skirtings and joinery – I know every stone in this floor after 15 rounds of up-close grinding and polishing!

A final double application of penetrating sealer and a final soft buff and this floor officially became a work of art. Check out the before and after photos below.

The exquisite floor created by Geocrete in the same space.
The dull, lifeless floor produced by the low-bidding concrete polisher.

 

 

 

 

 

 

 

 

 

The cost to fix the original poor work? Twice what they would have paid had Geocrete done it in the first place!

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