Proteus Pro-System® Plus does not brittle, wear away or yellow with age. It uses atmospheric moisture to trigger its cure process and unlike conventional polyurethane systems can cure underwater without gassing or foaming. It also becomes resistant to rain damage and may, therefore, be applied in relatively poor weather without any subsequent loss of performance or durability. It cures to provide completely seamless waterproof protection and has excellent thermal and UV stability, making it suitable for use in all climates.