QP-ON 2.1 serves to prepare the ground for other QP-ON products. To obtain a surface with high gloss and all the protective properties, a clean surface, free of grease and other elements is necessary. Most cleaning products will not go into the deep structure of the material and/or will damage the surface structure (because they are too aggressive or abrasive).
The application of QP-ON 2.1 will ensure, that any damage to the high-end coating will be repaired and preserved. Guaranteed to last for a long time (months to years).