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Surface
Preparation Techniques
For Cracks
Use a utility knife to clean out the loose debris. Use a
filling knife to scrape out a thin bottom layer of
undamaged material. Dampen the undercut crack using a
small brush and minimal amount of water. Fill the crack
with plaster crack using the filling knife. Use one stroke
down the length of the crack to remove excess compound.
Allow time to dry. Sand with a sanding block. |
