Patching a Plaster Wall

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November 30, 2010

Patching a Plaster WallTo patch small holes and fine cracks in plaster or wallboard, mix 2 Tbsp. salt, 2 Tbsp. cornstarch, and about 4 to 5 tsp. water to make a thick, pliable paste. Fill the hole and let dry. Sand if necessary, then paint.


Source: Morton Salt

By Monica from Cortez, CO

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Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

April 14, 2005

i have a plastered ceiling that was cracked and sagging in one spot (a square about 2x2). We cut out the old plaster and we were going to replace it with sheetrock. Our problem is that when we took the measurements for the sheetrock the thickness of the plaster was anywhere from 1/4" to 13/4". Is there a way we can replace the plaster with something other than sheetrock? Any info would be extremely helpful.

Thank you,


By Marietta (Guest Post)
April 15, 20050 found this helpful

Use a piece of screening larger than your sagging area and plaster the overlap. We had this happen and pulled off a ceiling molding and anchored the screening (not necessary but definitely offered more support) at one side. When this area has completely dried, put a light coat of plaster over the entire screen and let dry completely.


Use as many layers as you need. Then paint. Ours turned out well and has held up many years with no sagging or problems.

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April 16, 20050 found this helpful

marietta, thank you for your advice. can you tell me what kind of screening you used? thanks again, susan

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