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Old 01-02-2008, 01:39 PM   #1
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sheetrock butt ends


I am wondering if there is a trick to mudding the butt ends of sheetrock.
They always seem to crack after time.
Is there a procedure to use here??

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Old 01-02-2008, 01:45 PM   #2
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sheetrock butt ends


Blacktop mud. Least thats what the old timers tell me, the blacktop mud is "Base Mud" and the green top mud is "Topcoat Mud". The base mud is supposed to be different in density and texture as apposed to the topcoat mud. See what some pro drywallers here have to say. I am curious of their opinion too!

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Old 01-02-2008, 06:46 PM   #3
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sheetrock butt ends


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Originally Posted by sgtrock View Post
I am wondering if there is a trick to mudding the butt ends of sheetrock.
They always seem to crack after time.
Is there a procedure to use here??
hmmm... If you are seeing cracks, then you are doing something wrong. There are a few things that can cause a butt end to crack.

1.) Are you landing the butt ends on studs? or are you "floating" them?

2.) Do you have enough screws placed on the butt seams?

3.) Are you using pre-mixed compound and mesh tape? If so, then that could be your problem. Use paper tape with pre-mix and mesh with quick dry (hot mud).

There can be other factors that can create cracks at the butt seams as well...
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Old 01-02-2008, 06:52 PM   #4
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sheetrock butt ends


Another thought: If you are positive that you are applying your tape and your compound per industry standard, then the issue is going to be: How the sheetrock was hung.

When we do contracts that are for taping and coating only, we don't warranty our work because we cannot garuantee that the sheetrock was attached (hung) properly. Poorly hung sheetrock will cause cracking.
I think you need to address that.

Generally, the choice of compound will not make a difference in terms of cracks. Yes, hot mud can be stronger than pre-mixed. But, if you have a crack, the issue is 99.9% of the time - going to be from what is going on underneath ..... "underlying problems"....
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Old 01-03-2008, 03:10 PM   #5
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sheetrock butt ends


for all the help.Will give those pointers a try.
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