materials e.g. carpet backing and sealants and Triple Tooth, for the removal of thin coatings e.g. adhesive and for creating a ‘closer’ profile.

There are also PCD discs to fit 9’’ hand grinders, consisting of a cup disc onto which fit interchangeable outer rings. These are ideal for removing adhesives in confined spaces and for edgework or small areas. There are two PCD rings available; 6-piece for the removal of thick coatings and 18-piece for the removal of thin adhesives and paint.

PCD accessories have many additional uses over and above adhesive removal, including the removal of other soft thick materials from latex screeds and certain asphalts.


Asbestos-containing materials (ACMs) can still be found in many pre-1986 buildings. Asbestos used to be mixed with cement and particles and small percentages have been evident in flooring adhesives, used to secure a wide variety of finished floorcoverings. All removal work must be undertaken by a specialist

contractor holding the correct certification and their employees trained and qualified in the removal and disposal of asbestos related materials, without causing hazard to themselves, other trades and the public. All projects must be monitored and documentation outlining the works submitted to HSE.

Advice in Action

The Preparation Group’s contracting division, PPC, were contracted by the council to remove floor adhesive containing traces of asbestos from a block of flats in Huddersfield, that were due for demolition.

The building comprised of ten floors and equipment had to be manually lifted to each level as the lift had been disabled. The company’s Liberator 250 Grinder fitted with a

PCD (Polycrystalline Diamond) Plate was used, with 9’’ Hand grinders fitted with PCD discs employed to complete the edges. Debris and fine dust particles were collected safely by an M450 industrial vacuum fitted with an ‘H’ grade filter and the contaminated material, contained in special asbestos bags.

The total area of 1,413m2 took six

days to complete. The contaminated material represented a small percentage of the overall structure so, by disposing of this element separately, it meant that the whole building was not classed as contaminated waste, thus reducing environmental impact and costs. The project would have taken substantially longer without PCDs. — 21 —

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