PPC Refurbishes Uni Concrete

by Laura

The Preparation Group’s contracting division PPC, was contracted to polish a 40 metre concrete slab that was uneven and pitted, in the reception of a Lincoln University building. Unusually, the specification was to show the nature of the concrete rather than reducing it down to reveal an even aggregate.

The first stage was to remove the high spots some of which were 18mm using the 250 Grinder, followed by grinding the area flat and smooth with the Terrco 701-S.

The polishing process was completed with the STG450 multi-tasking machine, fitted firstly with Surface Finishing Diamond Pads (SFD’s), working up the grades from 100 to the finest 800 and then Storm Diamond Pads to create the final sheen, polishing the floor with just water.

Maintaining hard floors

For heavily trafficked and worn hard surfaces that have become scratched, stained and contaminated The Preparation Group recommends the STG450, for total floor refurbishment and deep restorative cleaning.

The STG450 is a surface texturing and grinding machine that is easily adapted for multi-functional use without the need for tools by interchanging accessories and plates, from metal drive plates to diamond cleaning pads. It is operated with a simple lever and a dust control skirt minimises dust pollution when fitted to a vacuum unit. It can be used wet, with an optional water tank, or dry and presents a low-cost option with virtually no maintenance and high levels of productivity.


When fitted with the correct accessories, just some of the STG450’s applications include; grinding and smoothing concrete, removing coatings, cleaning and polishing terrazzo, removing adhesives and sanding wooden floors. Surface Finishing Diamond Pads (SFD’s) and double sided Storm Diamond Pads are two accessories that also offer sustainable methods for refurbishment and cleaning, creating a hygienic, shiny, yet non-slip floor on hard floors by adding just water. Along with the STG450 there are also sizes to fit standard rotary cleaners, auto scrubbers and polishing machines.

PPC Contracting

The Preparation Group is an expert in assessing projects and identifying options to remove or prepare the relevant surface, before its contracting team carry out works. Key services include; cleaning concrete, removing lines and paint, reducing levels, removing screeds and coatings, re-instating anti-slip, removal of carpet, vinyl and ceramic flooring, steel preparation and floor polishing. The team is also qualified in the removal of asbestos, still found in many pre-1986 buildings, where it is mixed with cement or present as particles in tile/sheet flooring and flooring adhesives. The company often works in partnership with material manufacturers and flooring contractors.

A vast array of surface preparation, removal and finishing techniques can be employed. The main methods are; shotblasting, planing, grinding, multi-stripping and cleaning with the type, size and power requirements of the machine chosen determining production rates achievable, together with the accessories selected and the nature, thickness and composition of the material to be removed. All equipment Is attached to either a filtration unit or industrial vacuum to minimise dust contamination.

The Preparation Group’s operatives are NVQ qualified and highly skilled, supervisors and site managers are accredited and competent in dealing with the most demanding site conditions. The company has a proven record for Health & Safety and is an accredited CHAS member.

In addition to its contracting services, The Preparation Group offer a wide range of equipment for sale or hire, machine servicing, training and technical advice.

Equipment is designed and built at The Preparation Group’s workshop or sourced from renowned experts with the benefit of having been tried and tested in the most demanding site conditions. The company’s equipment and tools are developed to be high performance, tough, efficient, reliable, low maintenance and to feature simple controls.

Contact us for technical advice, a project or equipment quotation, or for further information about our services:

The Preparation Group
Preparation House

T: +44 (0)1522 561460

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