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#1
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drywall cracking
hello, I am drywalling my basement, I am putting on my last coat of
mud and noticing cracking. I am wandering if I put the final coat on to thick or do I have a bigger problem. I used regular paper tape, and it seems that is where it is occuring. Do I need to sand it back down or can I put a thin coat over top? Any help would greatly be appreciated. Back to top |
#2
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drywall cracking
When mud dries it shrinks and cracks form. Just put another thin layer on.
"basspro" wrote in message news hello, I am drywalling my basement, I am putting on my last coat of mud and noticing cracking. I am wandering if I put the final coat on to thick or do I have a bigger problem. I used regular paper tape, and it seems that is where it is occuring. Do I need to sand it back down or can I put a thin coat over top? Any help would greatly be appreciated. Back to top |
#3
Posted to rec.woodworking
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drywall cracking
I used regular paper tape, and it seems that is where it is occuring. Is the mud, only, cracking or can you tell if the tape, itself, is rising (peeling up, separating) from the drywall surface? If you can be sure only the mud is cracking, then you are caking the mud too thick and, as it dries, it will form irregular cracks, usually in all directions, like in a dried-up mud hole cracking irregularly from drought. This isn't bad. Allow it to dry completely, gouge out or scrape (not sand), somewhat, those areas and skim it again. If your tape adherence, to the drywall surface, has failed, this means you didn't put enough mud behind the tape for it to adhere properly OR You may have initially put enough mud behind the tape, but you pressed the mud out from under the tape (when skimming, too tight, that first mudding/taping layer). The cracking, due to this lack of mud behind the tape, will likely be a straight lined crack along the edge of the tape (and not the small irregular type cracks as that of a dried-up mud hole). If this is the case, cut out the mud and tape, from the affected areas, and re-mud and tape. If this is the case, you may have mudded and taped improperly, this way, over other areas and your problem may very well show up in those other areas, later. I hope your problem is the thick mud problem and not the non-adhesion problem. Sonny |
#4
Posted to rec.woodworking
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drywall cracking
Sonny wrote:
I used regular paper tape, and it seems that is where it is occuring. Is the mud, only, cracking or can you tell if the tape, itself, is rising (peeling up, separating) from the drywall surface? If you can be sure only the mud is cracking, then you are caking the mud too thick and, as it dries, it will form irregular cracks, usually in all directions, like in a dried-up mud hole cracking irregularly from drought. This isn't bad. Allow it to dry completely, gouge out or scrape (not sand), somewhat, those areas and skim it again. If your tape adherence, to the drywall surface, has failed, this means you didn't put enough mud behind the tape for it to adhere properly OR You may have initially put enough mud behind the tape, but you pressed the mud out from under the tape (when skimming, too tight, that first mudding/taping layer). The cracking, due to this lack of mud behind the tape, will likely be a straight lined crack along the edge of the tape (and not the small irregular type cracks as that of a dried-up mud hole). If this is the case, cut out the mud and tape, from the affected areas, and re-mud and tape. If this is the case, you may have mudded and taped improperly, this way, over other areas and your problem may very well show up in those other areas, later. I hope your problem is the thick mud problem and not the non-adhesion problem. Sonny Good post, Sonny! Thanks! Pop |
#5
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drywall cracking
Sonny wrote:
I used regular paper tape, and it seems that is where it is occuring. Is the mud, only, cracking or can you tell if the tape, itself, is rising (peeling up, separating) from the drywall surface? If you can be sure only the mud is cracking, then you are caking the mud too thick and, as it dries, it will form irregular cracks, usually in all directions, like in a dried-up mud hole cracking irregularly from drought. This isn't bad. Allow it to dry completely, gouge out or scrape (not sand), somewhat, those areas and skim it again. If your tape adherence, to the drywall surface, has failed, this means you didn't put enough mud behind the tape for it to adhere properly OR You may have initially put enough mud behind the tape, but you pressed the mud out from under the tape (when skimming, too tight, that first mudding/taping layer). The cracking, due to this lack of mud behind the tape, will likely be a straight lined crack along the edge of the tape (and not the small irregular type cracks as that of a dried-up mud hole). If this is the case, cut out the mud and tape, from the affected areas, and re-mud and tape. If this is the case, you may have mudded and taped improperly, this way, over other areas and your problem may very well show up in those other areas, later. I hope your problem is the thick mud problem and not the non-adhesion problem. Sonny I drywalled most of my house, and started with paper tape. I had the same kind of problem that Sonny outlined, and could never get it right. I had a pro show me, practiced til I had mud coming out my fingernails and finally gave in to the fact that it was something I wasn't going to learn. The pro who showed me how to do it disdained the self-stick nylon mesh tape, but I used it anyway. After using it for a few joints I thought I'd died and gone to heaven. No more cracks. Tanus -- This is not really a sig. |
#6
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drywall cracking
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#7
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drywall cracking
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