Road conditions are extremely harsh. Mud, dust, sign vandalisms with stickers , various graffity sprays etc are reducing the ability to distinguish the signs both day and night.

The removal of the above stated impurity may damage the Signs.

The adhesive transparent membrane, combined with retroreflective Sign membranes (traffic Signs) for their protection, allows their clearing from the more permanent dirt, through the usage of appropriate dissolvents without damaging the membranes and the silk screening colours of the underlying layers of the Sign.

Through this process. the Signs can maintain their initial appearance for many more years.

The protective membrane is durable in the resolvents coating, with tranparent glue, compative with backround reflectivity (meaning that it does not cause remarkable reduction the reflectivity and resistance of sign).

An other very interesting use of existence of such membrane, is the possibility that the sign has og be covered certain or totally with provisional messagem which can slower easy with a pull be remoned, without any damage in the sublayer.

Finally one still important advantage of protective membrane is that the signs are mentainted cleaner while the enviromental pollutants are not seet with the same facility as in the signs which do not bring this transparent membrane.

It is recommended for alla type signs that are found in places that suffer from vandalisms, as train stations, buses stations, school and athletic areas.

The additional cost is damped with the first use, re-estamblisment of sign appearance and operation .