Mr. Mark Softner

Mr.Mark Softer is a softening agent designed to be used with decals (slidemarks). It enables decals to conform to rough and curved surfaces.
How To Use Mr.Mark Softer
First, apply a small drop of Mr.Mark Softer to the area where the decal will go using the brush attached to the bottle cap.
Apply the decal over this area. Apply gentle pressure to the decal with a soft cloth, removing any excessive liquid and ensuring that the decal down fast.
The decal will stick perfectly, even on uneven or curved surfaces.
If air bubbles do get in between the decal and the model surface, allow the decal to dry, and then carefully prick the decal with a needle and insert Mr.Mark Softer through the resulting hole. The air will escape, and the decal will then stick down conforming to the surface of the plastic part.