New drywall finish question. Skim coat=plaster coat=?
deedles
11 years ago
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brickeyee
11 years agoRelated Discussions
Thin coat plaster looks horrible.
Comments (15)Skim coating the last coat over wallboard was popular in our area in the early seventies, though it wasn't referred to as a level 5 finish. Level 3,4,5 finish wasn't in the terminology of those days. It was popular for a smooth finish as well as the popularity of wall paper hanging. Imo, it never compared to the plaster over blueboard smoothness that Mongo refers to in the n.e. I witnessed plaster over blueboard on cape cod in the eighties and it is awesome. Skim coating over wallboard phased out with texturing and is rare to this day to see a smooth finish out here. Appearently we have an in experienced crew + builder on the op's project and can be corrected by getting an experienced finisher to skim coat the entire project as mentioned by Dumaspup. It doesn't sound like it is a scratch/brown coat/skim coat used, but rather a sordid attempt at skim coating over wallboard with joint compound by inexperienced finishers unfamiliar with the process. Get an experienced finisher in there to clean it up!...See MoreQuestion on skim coat on drywall??
Comments (2)Sanding after skimcoating is the only way. Some drywallers are very good at laying down the skimcoat so that there is minimal sanding, but there is always some required. Over sanding is something that bad drywallers and painters do...usually it is not an issue....See MoreXpost in Baths, Can I Skim Coat New Bathroom Drywall and Plaster?
Comments (2)Thanks Casey, What is a good oil based primer. I will be using BM paints for the room. I could get their primer. I have only used Zinzer primers up to this point, in my kitchen, and now bathroom. My progress: Last night I went ahead and thinned down some green topped joint compound (drying type, I believe it is called, as opposed to setting type) and rolled it over the Gardz primed walls. After I knifed it off you could barely see the application, just a soft haze. My thought is that I will now apply another thin skim, then when dried, prime for painting. I just don't want these layers to delaminate in the bathroom. This isn't a steamy room because there is no shower and the tub is rarely used. But it is a bathroom none the less....See MoreAmateur needs some tips on skim coat plastering
Comments (7)Shimming is very slow and a real PITA. You can get a faster result by using 2x2s (I use ripped down 2x4s) and attaching them to the edge of the present studs protruding far enough to create a new flat plane for the drywall. Find the highest spot on the existing studs and make the entire wall match that. Either screws or a nail gun make quick work of attaching the new strips to the sides. Hammering nails allows the new studs to move around too much (and old wood can be very hard). If the area is large enough a laser level projecting a plumb line and a wooden gauge can be used to quickly align the front edge of the new sisters as you move across the wall. Attach new wood to every stud so the screw spacing will be uniform. Some painters tape and a marker allow for transferring the stud locations to the floor for weasier wall fastening if there is any irregularity in the studs. Skim cioating for smaller areas isfaster with a plasterer's trowel (instead of a srywall knife) and use Easysand or Durabond. 120 minute if you are a little slow, 90 if you are faster. If you mix these compounds about as thick as peanut butter (smooth with no lumps please) there wil be very little shrinkage as they harden. Unlike pre-mix that hardens by evaporation, Easysand and Durabind harden by chemical reaction....See MoreUser
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