I’ve been using gyeon leather shield for 2 years now, love the product and durability my only concern is can this Product be applied to the rest of my Audi A4 interior such as dash, door cards, plastic rubber etc? Seeming is flexible I don’t see why? Secondly I’ve been trying to grab a much info as I can between CarPro ech2o and artdeshine bio nano pro in terms of quick detailing and gloss levels/ water behaviour effects. My car is coated with qp-on 2.0.