Do I need to agitate the solution ? February 15, 2019 09:47 This solution can require swiping motion with aid of a microfibre Related articles After rinsing Q²M WaterSpot my car has still defect on it - Why ? How to store the product after use? What is the shelf life once opened? Will Q²M WaterSpot will damage/alter my paint work or coating ? Where to apply ? What is it ?