Donik Devil is the real glue king, with sticky particles. The advantage is that the sponge of Donik F 1 is very brittle and can penetrate the board. At the same time, its disadvantage is that it needs enough circuit board support. This glue is suitable for thick plates and heavy carbon plates above 6.5mm, such as Putan, Butterfly King, Lao 08, CL, etc., and it is not easy to punch soft plates and thin plates.