The removal of existing road markings is a common process, and needs to be performed for a number of reasons. Whether traffic layouts have changed, markings need to be removed after a road construction project, or general wear and tear means that relining is necessary, it's important to choose a method of line removal that is best suited to the particular project.
At Reline Painting, we offer 2 methods of line removal; what they are and why they might be used. An effective way to remove many road markings is through use of a scarifier. The machinery involved here relies on force, using a rotating drum of tungsten-tipped picks to peirce, chip and smash markings from the surface.
A Scarifier is especially effective for thicker thermoplastic markings and removing markings from concrete surfaces. Scarifier machines are commonly used to level out or reduce the height of bulkier markings, and are helpful when removing thick markings which have formed hazards for motorists or trip hazards for pedestrians – at crossings, on pathways or in car parks, for example. Due to the force and potential penetration of a scarifier machine, they are generally unsuitable for thinner or more fragile surfaces, as the surface layer itself may become scarred or damaged. Debris is generated as the markings are chipped away, but this is collected and removed from the site using a road sweeper.
A less invasive method of removal is Shot Blasting. Especially effective for warehouse or concrete bases. Shot blasting is the preferred method of surface preparation, recommended by most coating manufacturers. It produces excellent bonding characteristics that promote maximum floor life and reduced coating failure. Different surface profiles can be achieved by varying shot size, shot flow rate and machine travel speed to assure the best possible coating job. Shot blasting is a cost-effective and environmentally friendly method for preparing concrete and asphalt surfaces. This labor and time-saving process strips, cleans and profiles simultaneously. It leaves the surface immediately ready for the application of coatings or overlays - eliminating drying time and costly disposal procedures associated with other surface preparation methods.
