Wall painting is a tricky and tedious work at the same time. Firstly for any dual colour effect you need to choose a colour three shades lighter or darker than your desired base coat colour. Next it’s essential to remove any lint or dirt that might have had cling to the rag roller; for this wrap broad adhesive tape with its sticky side up a couple of time on you palm to create a loop and them swipe it gently over the rag roller. Repeat a second time. Since decorative painting using rag roller requires two people to work simultaneously on the same wall, puff up your roller appropriately while the other strokes the wall with top coat paint and get a little ahead for you to create space for roller application.