[nevardmedia]

You might want to try masking the area off with a low tack masking tape (as already memntioned to avoid removing the platform surface when you remove it). Then, with a stiff brush, using very little pigment dry brush or stipple the paint on (enamel, matt emulsion - have a play first). Overstated white lines will look wrong, this gets around that, allowing some of the original surface to show through - less is more......