3.5 qt. All Purpose Ready-Mixed Joint Compound

Thank you for your inquiry. USG SHEETROCK® BRAND ALL PURPOSE JOINT COMPOUND can be used for skim coating drywall surfaces and hand-applying simple textures. It can also be used for repairing cracks on drywall and plaster. Without knowing what was used to create the designs in the ceiling, we cannot make a recommendation.

yes you can use it to fill in, but you might need to mix it with other products to achieve a good consistency to adhere and prevent craking. with products like plaster of paris or USG easy sand powder

John USG does not recommend applying joint compound directly to the interior face of an exterior masonry wall. We recommend furring out any plaster system so that it is not subject to condensation. Ready mix joint compounds are not approved for this application.

Nelson Thank you for your inquiry. 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.

Thank you for your inquiry. The diameter of the top of a 4.5 gallon bucket of Sheetrock All Purpose joint compound is approximately 11.3 inches. Note that this does not include the handle attachment points.

Jake- You do not have to add water. Remix contents before use. When taping and finishing joints, thinning with water may improve application. Add clean water in half-pint increments, remix and trial apply until preferred consistency is reached. Over dilution causes abnormal shrinkage, poor bond and other negative effects. Do not mix with any other material.

James Thank you for your inquiry. When you first open the bucket, mix the entire contents with a paddle mixer. Only remove what you need for your project and do not return any unused compound back into the bucket. When you are done for the day cover the compound with about an inch of water and then tightly cover with the lid. When you want to use the compound again, pour that water off and remix. Hope this helps.

Mark 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.

Ceiling- This material is ready to use; it can be thinned slightly with water for easier application. Add water in small increments (for 1 gal. of compound, add water in 2 oz. increments.)