Even though DG105 has cleaning properties, it is a true sealant. That is why an Oily polish like Meg's UP will not allow it to bond to the paint. Same reason I am planning to use Optimum Polish II for hand correction of swirls, minor scratches and stains from bird droppings. Don't own a DA machine. This particular polish is water based and has no fillers, oils or silicones and will allow DG 105 to bond to the paint. I plan to top it up with OCW or C 845 for the Nuba warmth after 24 hours.