![]() Make sure it has mud behind it everywhere, and cut to length. Take the tape and cover the seam by running it longways and centering it over the seam. Here I am going to talk about paper because I feel that is best for the beginner. They have differences in use and installation. There are two types of tape to use, paper or fiberglass mesh. Any air pockets that are left will create blisters on the nest coat or when painting. ![]() The goal here is to cover the seam so the tape will be completely covered with mud on the back side. The coat needs to be spread evenly over the seam. There is more to this then throwing mud on the wall. ![]() It can also cause you problems on the next coats if not done correctly. This coa t is responsible for sealing the seam to prevent cracking. When mudding drywall seams there are some things you should know.
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