How To Stretch Watercolor Paper With Masking Tape. Once the paper is dry, it will be stretched tight on the board and will not warp when watercolor is added. Finally dry the paper using a hairdryer !
Let the sheet dry overnight. Stretching your watercolour doesn't have to be messy or difficult. The paper will need to be wetted repeatedly and turned over to ensure the entire surface is adequately soaked.
Finally dry the paper using a hairdryer !
To fix the soaked paper you need some gummed tape. Fill a large sink or bath with water and submerge the paper, rolling or folding it as necessary, but avoiding creasing it. Gummed tape will stretch with the paper but masking tape will not. Fasten the paper down to the board or frame with masking tape or with binder clips.