If the line markings on your synthetic surface are wavy it can be for 2 reasons: If they are sprayed onto the surface then it is due to the quality of your application. In most cases painted lines will fade away over time, at which point they can be re-marked professionally. If you can't wait that long then another alternative is to spray over the existing lines with a green paint before overmarking the new lines. Technical Surfaces offers a line marking service and unlike waterbased paints our special 2 part line marking compounds can last in excess of 12 months. If, on the other hand, you have inlaid lines on your surface, wavy lines might suggest more problematic issues. If we assume the lines weren't wavy after installation then the most common cause is movement in the surface carpet. Most surfaces are 'dynamic' meaning they are simply held in position by the weight of the infill (approx. 150 tonnes on a sandfilled surface). Even given this sheer weight, in certain circumstances the surface can creep sometimes uniformally and it is this movement which causes distortion of the lines. Special equipment can be used to help rectify this but ultimately it may be necessary to cut out sections of carpet and insert new lines. Technical Surfaces would be happy to offer futher advice on this issue. 

If the lines on your artificial pitch are starting to come up or are missing then this can be rectified. Synthetic surfaces are made up of individual sections bond together using specialist adhesives and seaming tape. Due to the harshness of climatic conditions (especially frost) and general wear and tear these seams will fail from time to time. These can be repaired but we would urge you to have repairs undertaken by your pitch installer or a specialist company such as ourselves as a poorly-completed repair can represent as much of a trip hazard as the initial problem.

If  the lines on your artificial surface are faded we can be fairly confident that these have been sprayed on. Only in very severe cases have inlaid lines faded as a result of UV instability due to a manufacturing issue. In the few cases of this nature it is normally the colour red that is more susceptible to this and due to improvements over time we have not seen a case of this for the last 10 years. The solution to sprayed lines fading is to to re-apply more aerosol or line marking compound. However, take care not to over-apply these paints, especially where lines overlap at the corners, as paint build-up can lead to slip hazards for users. If you find yourself constantly reapplying markings you might want to consider using our special 2 part compounds. These have been tried and tested over many years and some clients have experienced more than 18 months of useable life from a single application.