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Anti-Graffiti Coating

Anti-graffiti treatments provide an effective barrier, especially on porous surfaces, such as brick, stone, rendering etc. They make cleaning much easier and also provide protection against air pollution and corrosion by water ingress.Our surveyors provide comprehensive proposals, which include, substrate cleaning and preparation, repairs, alterations, number and specific coating requirements, method statements and COSHH material data sheets.

There are two main types of anti graffiti coatings, permanent and sacrificial.

Permanent
These paints are normally Polyurethane or Terrethene based and cure to a very hard permanent finish. Coatings can be clear or pigmented. Advantages: Very hard wearing and durable. Will last for up to ten years. Graffiti is easily removed by means of chemical agitation. Ideal for murals, tiled and all painted surfaces. Provides a protective barrier against corrosion and pollution.Disadvantages: Clear coatings have a glossy finish, are highly visible and will change the appearance of the substrate. Environmentally disliked as they can contain hazardous solvents. Can trap water vapour. For this reason these coatings are prohibited on listed buildings. Materials are costly.

Sacrificial
These are clear wax-type or silicone based compounds.Advantages:Practically invisible, do not affect appearance of the substrate. Graffiti can be removed using chemicals or hot water. Environmentally friendly. Low odour for internal use. Ideal for facades, monuments, walls and endangered surfaces. Allows surfaces to breath.Disadvantages: When graffiti is removed, the affected area must be re-coated. Some types are cold water soluble and unsuitable for external use.

For further information or to arrange a demo please contact us.

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