Yes, the gaffers tape can use for painters tape. But the price of gaffers tape high than painters tape. The reason for the high price of the Gaffers tape is that the Cloth backing material and the adhesive layer require a special process. The gaffers tape is made with a coated cloth backing and a rubber-based adhesion system. Gaffers tape cloth backing coated with special powder with PE coating that has a matte backing to prevent light reflection.
The adhesive on gaffer’s tape is less adhesive residual than duct tape after removed, making it a good choice for temporary jobs. So you can paint gaffer tape.