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D.J. Cooper Building Conservation - The Latest News in & around Raglan, Monmouthshire

12/11/2019: True Grit

Gritblasting as a cleaning method has more to it than may meet the eye. With the variety of cleaning media available, it is possible to select exactly the right one, not only for removing whatever contamination needs to be removed, but also for preserving the often delicate stonework beneath.

It is also possible to select precisely the wrong one and do more harm than good.

The selection process has to take into account, not only the size of grains to be used, but their sharpness, hardness, shape and chemical composition to make sure of the perfect cleaning job every time. If you have a stone or steelwork cleaning project to complete, it is worth taking into account that we have 30 years of experience in making the decisions that make the difference, and can advise on every aspect including the choice between:

  • Iron Silicate
  • Steel Shot
  • Steel Grit
  • Aluminium Silicate
  • Glass Grit
  • Garnet
  • Aluminium Oxide
  • Pumice Grit
  • Glass Bead
  • Calcium Silicate
  • Bicarbonate Of Soda
  • Plastic Abrasive Grit
  • Walnut Shell
  • Corn Cob Grit
Call us on the number above, or click in the header of any page to send us an email for straightforward advice on tricky cleaning jobs.

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09/10/2019: Do you have bird fouling problems?

Bird fouling is a growing problem in many town and city centres. With increasing populations of pigeons and urban gulls, many buildings can quickly become covered in droppings.

This is not only unsightly, but can be damaging to delicate stonework too. The RSPB recognises that urban gulls and rural gulls are two distinct groups which rarely mix, so it is no good waiting for them to return to the coast. The lack of natural predators and ready source of food from landfill sites and discarded fast food makes towns a great breeding place for the urban gull.

The seagulls get a taste of their own medicine from a protesting cormorant

This diet, gleaned from our throwaway society also contributes to the corrosive nature of droppings. These attack everything from the stone of historic buildings to the paint on modern cars. Bird droppings have also been linked to the flu like disease, psittacosis, salmonella and cryptococcus, which recently contributed to the death of a child in a Glasgow hospital.

For buildings, regular, effective cleaning can help preserve the exterior, removing caustic bird fouling before it has a chance to cause permanent damage. With years of experience, DJ Cooper has the equipment and the knowledge to sympathetically clean stonework, not only effectively removing the contamination, but also cleaning in a manner that is sympathetic to the substrate.

If you are suffering from bird fouling on your building, give our specialists a call on the number above or click in the header of any page to send us an email.

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29/08/2019: Basement Paint Removal by Sandblasting

In many cases, sandblasting, or grit blasting can be the most effective means of removing old paint, even multiuple layers of different paint types can be effectively and safely removed in this way, making it ideal for some older buildings that have been repeatedly painted over the years.

The key is in choosing the most appropriate grit type, particle size and application pressure, so if you have a thorny paint removal task in prospect, give us a call or click in the header of any page to send an email to arrange an appraisal visit.

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15/08/2019: Therma TEC Superheated Steam Graffiti Removal

This doorway and arch were cleaned to remove graffiti and traffic film using the Therma TEC superheated steam method.

Whilst being highly effective at removing the paint and years of accumulated grime, this system is very gentle on the underlying stone, so can be used even on fairly soft stone surfaces.

Whatever your cleaning problem, we have a method that will clean effectively while preserving the substrate of material, as well as many years of experience in getting outstanding results, so give us call on the number shown or click in the header of any page to send an email.

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