"I want to seal the underside of my motorcycle front and rear fenders. The rear has a large surface area, which has a mixture of intact paint and surface rust. I have already rubbed down this area. Which of your Dinitrol products would be  most suitable for my motorcycle?" - Asked by MW

We suggest that you put DINITROL RC900, which is an aerosol rust converter on the affected areas. When it is dry, over paint with DINITROL 445, which is a stone chip guard also available in aerosol.