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Permethrin spray


RGI is totally present in the field of conservation and preservation of Cultural Heritage.

Even though the main success of RGI is represented by natural and innovative products, such as the VELOXY® method, there are some situations where natural, safe and effective solutions are still being studied.   

In particular, it involves all the situations where infested objects could be wooden beams, floors, building fixtures and environments themselves, instead of a statue, a painting or a book. In these cases, using the anoxic method becomes more complex and expensive since a whole room should be treated. However, it must be known that RGI has already dealt with such interventions successfully on various occasions.

Sometimes, in these situations, it is necessary to resort to chemical methods. However, only the best available products are used and sold by RGI in order to guarantee both the maximum efficiency and artworks’ and people’s safety. Hence, it has been chosen to use permethrin-based products that are harmless to people but effective against parasitic organisms. In fact, these products are successfully used against woodworms, various infesting and parasitic organisms, such as lice and scabies, and for controlling cockroaches, termites, ants, and even little rodents.

Permethrin-based chemicals can be used in different ways and consequently, RGI uses those which have been deemed the most effective:



The RGI spray method consists of sprinkling a pressured disinfectant pyrethroid-based solution on wooden surfaces, through a spray gun connected to a special tank. It allows eliminating parasitic organisms and especially temporarily preventing both the deposit of new eggs and future attacks on treated surfaces, due to its repellent effect. In order to maximise the quality and effectiveness of interventions, RGI use a high pressure spray.

This method implies that the Permethrin is conveyed through a liquid. It is usually used for treating wooden surfaces infected by woodworms or other parasitic organisms and it is particularly suitable for treating parts of buildings, such as roof beams, windows or floors. RGI used Permetar, which can be used straight away as it has the active principle already diluted in oil. Moreover it is a landmark product which is certified by the Opificio delle Pietre Dure - located in Florence and the Istituto per la Ricerca sul Legno, C.N.R. (Wood Research Institute, National Research Council) – located in Florence. The product is applied by using a spray system that has been developed by RGI technical staff, which allows obtaining optimal results. The spray system is available for sale to public and private customers.


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