I noticed that there is a debate about using a paper tape or fiberglass mesh tape for drywall seams taping. In general professionals seem to prefer paper tape. However, I have read that in a place where there is a lot of humidity, such as a bathroom with a shower, it is necessary to use a fiberglass mesh tape and setting type joint compound (chemical bound), instead of paper tape and ready-mixed all purpose compound, the latter being soluble in water.

Being a novice I would like to know if it is true that the paper tape and ready-mixed all purpose compound are to proscribe for drywall seams taping in a bathroom. Could not we use rather a primer and a moisture-resistant paint to protect the seams ?

Thank you.

1 Answer 1


Could not we use... a primer and a moisture-resistant paint to protect the seams ?

YES, either tape will work fine and you should use the joint compound you are most comfortable with. When covered properly with a high quality primer and paint then the moisture should not be an issue for either.

P.S.- I do not use mesh tape because I have had experience with cracking that does not seem to happen as much with paper. Many folks will likely have suggestions and anecdotes both pro and con for both.

  • Jimmy - did you use mesh with all purpose (AP)? I'm not a drywall guy, so just going on advice, but mesh and AP seem to be bad because of the shrinking. Mesh and setting compound has never failed me. Sep 26, 2018 at 3:30
  • I use pre-mix joint compound for setting and covering the tape, then topping compound for successive coats. The cracking I'm referring to happened later (months), exposing the mesh. It may be wrong-headed thinking but I feel that the paper tape adds some tensile strength to the joint thereby helping to resist stress cracks, or maybe allows some "slip" under the tape so cracks don't appear? I dunno. Sep 26, 2018 at 4:26

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