That said topping mud of either type or joint compound of either type can be used thinned in a sprayer or with a roller or a trowel to apply texture to a wallboard. Ideally a texture would be mixed with a thinned latex paint to give it some body/ strength.
After the coat dries approximately 24 hours, sand the area. When sanding use 150- 180 grit paper and always sand along the outside edge well, so that the transition between the compound and the CertainTeed drywall are smooth with no imperfections. Then sand the rest of the joint lightly in order to make smooth.
You need to lay one layer of mud onto the bare wall to hold the tape, and you can usually lay another immediately after you lay the tape and scrape it. After that coat dries, you topcoat with a third layer, using a wider knife than you used for taping.
However, if you want to add a professional touch to the finished wall and exert less effort getting it that way, you should look for topping compound to use for the final coat. It's lightweight, which makes it easier to work, it dries faster than all-purpose joint compound and it's easier to sand.
Add Mud or Compound.Standard, all-purpose joint compound will work best for this project. You can use either dry compound or ready-mix compound. Avoid compounds that contain sand or grit (unless you want a unique look). Plain mud works best for this type of texture.
As for using hot mud for setting tapes, as long as it's mixed well (a little thinner like you would with regular mud) has never been a problem for me in the past. This is the first time I've experienced this.
Cost to tape and mud drywallThe national average for a total drywalling job, from start to finish, is $1.30 to $4 per square foot. Hanging just the unfinished drywall panels costs $0.24 to $2.25 per square foot. To finish the drywall, it costs $1 to $1.65 per square foot.
Press the wet tape into joints by dragging your fingers over the tape. Spread a little mud on the 6-in. knife and embed the tape by dragging the knife over the tape, pressing it tight to the drywall. Mud on the knife lubricates it so it won't pull at the tape and thoroughly moistens the tape for good adhesion.
Apply a third very thin coat of mud after the second coat dries. Use the 10-inch knife for all screw indentations, seams, and corners. The wider knife allows you to feather out the edges of the mud to a razor-thin application. Follow the same procedure for beveled joints and corners as before.
Apply a light coat of pre-mixed drywall compound to the area to be repaired, adding enough compound to work beyond the edges of the tape by a couple of inches in each direction. Cut a new piece of tape, and place it in position over the seam and drywall compound. Allow this compound to dry fully before proceeding.
Just to give you an example, if the wall is studded and you have experienced professionals working on it; then, it's possible that 4 or 5 sheets of the board will take less than an hour to install. After this, taping will last 15 minutes, and each coat and sanding will take 20 minutes.
Taping drywall looks easy. It's not. The most common mistake is to remove too much of the joint compound from under the tape.
You use drywall joint compound for almost all drywall repairs. Unfortunately, it doesn't stick well to gloss or semi-gloss paint. A coat of primer provides the necessary adhesion, and another one before you paint. Not only does it cut grease and dirt, it etches the finish and improves paint adhesion.
All drywall seams need to have tape embedded in joint compound. The tape strengthens the joint, and the joint compound, or mud, is the adhesive that holds the tape in place. But there's a lot more to hand-taping beveled drywall seams than slapping a bunch of mud on the wall and running tape.
Taping Your DrywallApplying drywall tape helps bond together adjacent sheets of drywall. Doing this creates continuity and helps reduce any motion or cracking. Joint compound can turn into powder if you neglect to apply tape to shore it up.
Dampen, but don't soak, the tape in a bucket of water. Wetting the tape before you embed it in the joint compound can help eliminate troublesome bubbles that show up after the joint dries. Keep a bucket of water nearby and quickly run each piece of tape through it before applying the tape to the wall.
You can finish with a final coat of drywall compound if you wish. Sheetrock is stronger than pre-mixed compound and sets in 20 minutes, 45 minutes, or 90 minutes, hence the different names on the bags. The mixing ratio is 3 parts powder to one part water. Only make enough Sheetrock to use in the time allotted.
There is just no getting around the fact that all brands of drywall mud will decompose. When they do, they produce a very foul smell, and you can visually see the presence of black mold.
I wouldn't paint over wet drywall mud, no matter if I sprayed or rolled. Give it a day to dry. Everybody is in way too much of a hurry nowadays. Everything needs time to dry, no matter what your painter says.
You can usually fill gaps less than 1/2 inch wide with joint compound while you are taping, but joint compound cracks when used to fill wider gaps. The solution is to fill the gaps with patching compound or, if they are especially wide, with strips of drywall.
Drywall mud often cracks because it has dried too quickly or because the application was too thick. However, you don't have to remove the mud and start over again. Instead, you can patch the cracked area once the mud has dried.
Conclusion. In general, paper drywall tape is slightly stronger and more versatile, but mesh tape has a more manageable learning curve and better moisture resistance. At the end of the day, this contest comes down to personal preference: use the tape that you're most comfortable with!
After you're done hanging drywall, and all the seams are taped and finished, you need two coats of paint to give the wall its final appearance. Before you apply those, however, you need to seal the drywall and mud with primer. You may get acceptable results by using self-priming wall paint.
Patching drywall is often a top concern when preparing for a move. Drywall is vulnerable to cracks, dents and holes, but you can easily repair it with drywall joint compound and a little sanding and painting.
Mesh Tape. Fiberglass mesh tape offers a few advantages. First, it is easy to use. Just tear a piece off the roll and lay it on a layer of wet joint compound.
The mesh tape is bedded-in with a thin layer of quick-setting drywall mud and then feathered out with all purpose or lightweight all purpose drywall compounds. Most manufacturers recommend using quick-setting compound with mesh tape rather than all purpose pre-mixed mud.
