Fenwick's: Fenwick’s Professional Protective Coating is designed to complement Fenwick’s cleaning products with its ability to act as an invisible surface sealant, without changing the outward appearance of your bike.Prefect for sealing difficult to clean matt finishes making them far more stain resistant, one application will last up to 6 months.Fenwick’s Professional Protective Coating is simple and easy to apply with a minimal curing time but gives long term results as it permanently bonds to the existing surface. Once sealed, the frame and components take on a new-found resistance to surface contaminants like energy drinks, gels, road grime and dirt, making cleaning quicker and easier.