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Old 10-19-2013, 10:43 AM   #1
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Quick mud question - which mud?


Hi,
We are getting ready to finish, Prime and paint our bathroom. I have already patched the walls and used some dry mix 45 mud for the tape and metal corners and primed the walls to keep the moisture out until we finish and paint. I would like to know if it is OK to finish with the 45 or if we should get something else. There are some spots that need to be smoothed out, and one seam that has proved to be annoying. (I purchased a 12" blade to try and feather it out and a corner blade.) We would like to paint ASAP. Any recommendations on the type of mud to use? I thought a chemically curing kind would be better because of the potential humidity in the room and past efforts.
Here are some pictures.








Thanks,

Kevin
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Old 10-19-2013, 01:12 PM   #2
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Quick mud question - which mud?


Not a good idea to finish with the 45, hard to sand, hard to finish, hard to paint. The paint will tend to what we call flash, which means the 45 mud will absorb paint differently than the rest of the wall. You can use the light weight (bright blue lid) or the ultra light weight (puke green lid) since your base is 45.
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Old 10-19-2013, 01:30 PM   #3
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Quick mud question - which mud?


What exactly is blue lid? and will I have to wait two days between applications and to paint?
In the past with some spackle we had to wait for ever for it to dry.

We have a Sherman Williams latex primer and our main coat is a SW Duration.
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Old 10-19-2013, 01:39 PM   #4
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Quick mud question - which mud?


.....P.S. In your next to last pic.....it looks like a stain? up on the ceiling. Is there a leak or is there a stain flashing thru the primer?
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Old 10-19-2013, 02:03 PM   #5
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Quick mud question - which mud?


no, I tried to scrape some of the excess there and I guess some of the paper came off. Also the lighting was poor, so I had to photoshop the pic a little. We have several light colors on the walls (not shown,) and purple board, and reg gypsum. The primer we used months ago is not hiding the colors very well.
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Old 10-19-2013, 06:22 PM   #6
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Quick mud question - which mud?


I am probably going to hell. Tried the quick set 90 and if refused to smooth out. wound up with black lid? All purpose. Have more work to do on the rest of the condo... and was told this would be best for it all. Probably would have been better off with the blue, but when I read the sheet at lowes... it seemed that black would be overall better for taping the corners on the ceiling that need to be fixed, and the rest. (also, if I hire this guy for a day... it is what he likes to use.)
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Old 10-20-2013, 04:20 AM   #7
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Quick mud question - which mud?


Quote:
Originally Posted by ToolSeeker View Post
Not a good idea to finish with the 45, hard to sand, hard to finish, hard to paint. The paint will tend to what we call flash, which means the 45 mud will absorb paint differently than the rest of the wall. You can use the light weight (bright blue lid) or the ultra light weight (puke green lid) since your base is 45.
I like the blue lid to. Its what i always grab.
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Old 10-20-2013, 06:13 PM   #8
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Quick mud question - which mud?


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Originally Posted by wraiththe View Post
I am probably going to hell. Tried the quick set 90 and if refused to smooth out. wound up with black lid? All purpose. Have more work to do on the rest of the condo... and was told this would be best for it all. Probably would have been better off with the blue, but when I read the sheet at lowes... it seemed that black would be overall better for taping the corners on the ceiling that need to be fixed, and the rest. (also, if I hire this guy for a day... it is what he likes to use.)
The black is just another brand, have used it, not my favorite but should be OK. Corners and angles can be a challenge good luck with them. If you end up doing them yourself Staight Flex or No Coat drywall tape can make your life easier when doing angles. A little more costly but worth it IMHO.
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Old 10-21-2013, 05:39 AM   #9
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Quick mud question - which mud?


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What exactly is blue lid?
It's a bad habit that some people on this forum and other places have gotten in to Don't use that terminology. Use the terms "taping compound", "topping compound", "all purpose compound", or "lightweight compound" (or others as needed.) Talking about lid colors is a bad idea.

I would not use setting compound for the final coats - I'd use any all purpose or lightweight topping coat. Also there wasn't a need to prime already. You are basically on target about setting compound being stronger in a humid environment, but for one thing, the strong coat is already on there so you don't have to worry about it anymore. Secondly, it's an interior space that will be painted correctly, so you really don't need to worry about it anyway (unless your bathroom will be absolutely damp, in which case you have other problems to take care of.)
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