I'm in the process of building a framework within an open chimney ( lintels approx 150cm height) so that I can house the plasma screen and centre speaker.
I've stripped away the old plaster from the chimney so that I could raise the lintel. I'm at the stage where I want to fit the plasterboard to cover the brick and frame the tv etc. In the past, I've always fitted plasterboard with screws to stud work but in this case, I'd be trying to fit to brick which makes screwing harder.
Thus I am looking at D&D. However from what I've seen online, the D&D method uses fairly chunky dollops and ideally I want it to be almost flat to the brickwork. Is there a minimum depth that it needs to be to support the weight? or is this generally done to enable squidging to get a nice vertical line?
As the area isn't that large ( 150*200 cm) and will have a tv(46") size section remove from the middle, is it possible to use soemthing like no nails? Would that be strong enough?
Both these products are horribly expensive compared with conventional bagged drywall adhesive 25kg of which will cost you around £ 7.00. For a 6' x 5' area you'll use most of a bag (most peeps don't use nearly enough of the stuff). Take no notice of the sites which tell you to use one in each corner and one in the middle. Thats nowhere near enough. Bagged stuff sets rock hard in about 80 minutes. The foam in your second link takes 12 hours. The one in your first link requires that you buy the special gun as well - good grief!
If you do the math on your costings I think you'll probably be using the bagged!!
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