Masking Helmet Sections

Jango Fett Jr

Well-Known Hunter
I usually stick the tape to my arm/leg/face/shirt to take of a bit of stickiness. Otherwise, I seal the paint with acrylic.

Jangos kid

Well-Known Hunter
Its a good idea to spray the area to be masked with a clear coat such as testors dull coat or semi gloss too.:)

Joren Fett

Active Hunter
Assuming you haven't thought of it already, you should also use painter's tape.
Its usually blue and looks just like masking tape. The adhesive is gentler, since
its main purpose is for masking surfaces that are to be painted.

Rogue Studios

Active Hunter
If you are using an airbrush you shouldn't have to mask it at all just card board pieces to block spray. To put on the stripes use a coat of semi gloss or dulcoate.