How to Bleach Knots on a Full Lace Wig? In my last article, I have mentioned that a normal lace base lays much flatter against and blends better with your own hair, but it looks visible and the knots have to be bleached. See the following picture. If your wig is made with lace base, you need to first use some product to bleach and tint the lace base. What you need: a mixing bowl and a spoon/a brush; bleach(BW 2 powder); developer; shampoo and condition; mask and gloves The first step is bleaching and tinting the wig. First and foremost, you can have mask to cover your nose and mouth so that the chemicals used for bleaching would not get too deep into your airways. Of course you need some gloves. Firstly, mix some BW2 bleaching powder in a small mixing bowl with the whisk and some 40 volume developer. Using 40 volume developer instead of 20 can make sure make sure every single knots on this closure is bleached so ...