How to Repair Plaster

Step-by-Step Guide

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   Step 1: Cut pieces of mesh tape in advance to cover cracks in plaster.

   Most cracks are curved, so you'll need a variety of lengths.
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   Step 2: Cover the cracks with your pre-trimmed mesh tape.

   , The substance is mixed thoroughly when all of the lumps are gone. ,,, This will ensure there are no unsightly lumps in the end.
   
   If you remove too much, leaving the first layer too thin, the tape will cause the compound to blister during the second coat. ,, Apply the second coat at about a one-sixteenth inch (0.16 cm) thickness.
   
   Taper the second coat so that it blends smoothly between the tape and the wall.
   
   Before applying the third coat of joint compound, scrape away any high spots, and then use a grout float to smooth the area even.
   
   Do this by dampening your grout float and sliding it over the patch until the surface is even. ,, If the lath board is still present, you can start by, once again, removing any excess plaster and dust. , Reapply as many coats as necessary, spreading no more than one-eighth inch (0.32cm) at a time, to achieve the proper thickness. ,,,,
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   Step 3: Premix your joint compound in your mud pan (this is the container you will work from).

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   Step 4: Remove any loose plaster and dust from the wall with a whisk broom.

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   Step 5: Apply a very thin layer of joint compound

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   Step 6: about one-eighth inch or (0.32 cm)

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   Step 7: with a putty knife.

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   Step 8: Remove about half of the joint compound you just applied.

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   Step 9: Allow to dry

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    Step 10: following the manufacturer's instructions to ensure that the joint compound has properly set before proceeding with additional coats.

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    Step 11: Apply the second coat of compound

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    Step 12: after the first one has dried

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    Step 13: in order to hide the tape.

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    Step 14: Allow the second coat to harden

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    Step 15: again following the manufacturer's drying instructions

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    Step 16: and then apply a third coat of joint compound.

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    Step 17: Proceed with the following steps if you need to patch any holes.

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    Step 18: Moisten the surrounding area

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    Step 19: using a damp sponge

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    Step 20: and fill with joint compound.

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    Step 21: Proceed with the following steps if the hole is very large.

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    Step 22: Trim any surrounding plaster away until the studs within the wall are visible.

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    Step 23: Screw a section of lath into the exposed studs.

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    Step 24: Follow the same steps for repairing cracks

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    Step 25: applying additional one-eighth inch (0.32 cm) layers until you achieve the same thickness as the surrounding plaster.

Detailed Guide

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