[header] How to repair plaster [title] Cut pieces of mesh tape in advance to cover cracks in plaster. [step] Most cracks are curved, so you'll need a variety of lengths. [title] Cover the cracks with your pre-trimmed mesh tape. 
[title] Premix your joint compound in your mud pan (this is the container you will work from). [substeps] The substance is mixed thoroughly when all of the lumps are gone.