Coating and calico: the weapons against the cracks to be covered in a plasterboard that one wishes to paint.
- In the case of crack between plates (movement of the frame), apply a wide strip of plaster.
- Unroll and stick meticulously a strip of calico over the still fresh coating.
- Smooth with a coating knife so that the product impregnates the calico.
- Let dry.
- Smooth again to remove the difference in level.
- Let dry and then sand before painting.