DINITROL 4942 is a brown coloured under-body product for the treatment of vehicles during production, at import plants and in the after-market. The underseal chassis rust protection coating is also ideal for treating passenger cars, older classic cars, 4×4 off road vehicles like Land Rover and commercial vehicles. When applied to a clean, dry surface, it adheres to both painted surfaces and those coated with a layer of PVC or similar material. Zinc, rubber and plastics are completely unharmed by the product. Can be used with an underbody coating gun and lance extension for easy application.