When it comes to specifying thermoplastic pavement marking contractors in Singapore, a few key considerations come to mind. Ensuring that the contractor adheres to the SS598 specifications is crucial for quality assurance and longevity of the markings. Look for contractors with experience in working with thermoplastic materials, as this can ensure a smoother application process and better durability of the markings. Additionally, consider contractors who have a track record of completing projects on time and within budget, as these factors can contribute to a successful pavement marking project in Singapore.