CASE STUDY: THE COTTAGE Guy Holloway Architects completed a beautiful project after a three-day concrete polishing course with The Preparation Group, an STG400 machine, Surface Finishing Diamond Pads (SFD’s) and Storm Diamond Pads. It has won the Sunday Times British Homes Awards trophy for Home Extension of the Year and in November, it won the George Clarke Medal inaugurated last year, which recognises and celebrates the UK’s best architect designed home refurbishment, conversion or renovation schemes.

Guy Holloway said: “We specified polished concrete for durability and for the underfloor heating system, as we knew it would perform in such a volumetric space. Our project manager attended a training course at The Preparation Group and we then bought the equipment that we needed.

“During works, we had a visit from their Training Manager to advise on how to finish the awkward areas and increase the concrete’s longevity. The result is a high-quality, glossy, yet resilient finish.”

greater surface coverage for high production rates with minimal effort. For small projects, inaccessible areas or edges, an STG machine fitted with diamond accessories can be more suitable. These machines can be used for wet or dry grinding and polishing. Wet grinding extends the life of the diamond, but creates slurry that must be collected and disposed of carefully by using an industrial vacuum with wet/dry capability. Dry grinding is a cleaner process, with the machine connected to an Industrial Vacuum or Filtration Unit.

When new concrete is laid, colouring agents and coloured aggregate can be incorporated into the mix to produce a decorative effect. It is important that the concrete is laid in a uniform manner to produce a consistent finish.

If the concrete floor is old, uneven or covered, a different preparation method may be needed first. Before considering concrete polishing, it needs to be established if the surface is cracked or has evident defects and what type of aggregate it is; its size, colour mix and percentage.

After completing the grinding process and in the early resin stage of the polishing, a chemical hardener or densifier can be applied to bond the surface, providing extra protection from contaminant penetration and producing a better polish.

To uphold the floor’s sustainability credentials, the only maintenance required is cleaning using a diamond infused pad and water such as Storm Diamond Pads, suitable for an STG450, Burnisher or Rotary Scrubber Dryer.


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