3.5 qt. Dust Control Ready-Mixed Joint Compound

A:  Yes it can be used for skim coating. If you use a roller for it just cut it with a bit of water. Mix to about a yoghurt like feel. Roll and smooth out. (Use a 14 inch or wider smoothing tool)

A:  Jimmy Thank you for your inquiry. USG recommends using Sheetrock All Purpose Joint Compound or Sheetrock Plus 3 Joint Compound for skim coating. If the walls have already been painted use fine sand paper or mesh to lightly sand them before applying the skim coat. Hope this helps.

A:  Thank you for your inquiry. Air bubbles can appear when applying joint compound over previously painted surfaces because air and moisture from the compound comes to the surface, rather than being absorbed by the paper face. We recommend using a fine mesh or sand paper to rough up the painted surface before applying the joint compound. Overmixing the joint compound will add air to it. Reduce the speed of the drill to slow down the mixing paddle. Be sure to apply the joint compound with your knife at a 45 degree angle. If the knife is at a tighter angle you may be forcing air into the compound as you apply it. If bubbles do appear they can either be smoothed out with the drywall knife while the compound is wet, or sanded out after the compound dries. Hope this helps.

A:  Eric Thank you for your inquiry. If you are applying joint compound over a previously painted surface you are likely to get bubbles or micro-perforations in the compound because the air and the moisture from the compound comes up to the surface. We recommend first roughing up the paint surface with a fine mesh or sand paper before applying the joint compound. Hope this helps.

A:  Thank you for your inquiry. If you are finishing joints you will need to also use Sheetrock Paper Joint Tape with the Sheetrock Dust Control Joint Compound. The drying time for ready mixed joint compounds varies depending on temperature, humidity and how thick it was applied. Ready mixed joint compounds can be applied up to 1/8" thick. The minimum room temperature should be 50 degrees Fahrenheit and the room should be well ventilated. There is no specific drying time that can be given due to the differences in jobsite conditions. If you are unsure if the compound is completely dry you can test it by applying plastic film over an area and taping it on all 4 sides. Wait overnight and if droplets of moisture appear on the underside of the film then the compound is not yet dry.

A:  Joints require tape. At least 24 hours