What is the best way to fix a crack in a plaster ceiling before painting the ceiling ?

Question

It would be nice if the repaair job didn't show through the new pain job as well as the crack.

Answer 1

You are painting a surface and no one has mentioned using painters caulk. That totaly amazes me. You can squeeze it into the crack, spread it out easy, and even use it to mimic texture.
No sanding , no primers to use over filler type of materials etc. etc. It doesn't crack, doesn't shrink. Why not give it a try.

Answer 2

you have to open the crack clean loose material and re plaster a little at a time in layers until it fills. If you have a textured surface you can use a dilute mixture called a slip, using a brush, by flick the brush forming little spots. Sometimes a process called knock down is used where raised portions are made by pulling wet plaster from surface with a trowel and allowed to dry a bit then flatten the high points a little with clean trowel. Experimenting on a scrap piece of something plywood, Sheetrock, cardboard to find the results you want.
Good Luck

Answer 3

nicely, it relies upon on how "mounted" you like it. If it is actual plaster (no longer wallboard) and it is not bellied down, you are able to spackle the crack (spackle, snad spackle, sand) then you definately'll desire some Kilz it somewhat is a undeniable paint to conceal the water mark. Then repaint the ceiling completely. predicted fee, $30 -$50. If it is wallboard, you would be proper to diminish out somewhat between the joists, replace the broken element, tape and spackle. and repaint the ceiling. predicted fee -$-35$ in case you're actually not curious with regard to the visual allure of the ceiling, or if it grew to become into at present painted, you're able to flee with merely portray the repairr. this might cut returned the fee by potential of roughly $15.

Answer 4

This may sound weird....but you have to open the crack up a little bit more, then fill it with Spackle. (Opening it keeps it from spreading on its own) Let it dry, sand down the rough surfaces and apply as many more layers as needed till the crack is filled and the ceiling is level.

Answer 5

last answer is easiest . Use a paintable caulk .It cracked there for a reason .If you just use Spackle or joint compound it will crack again .You could use drywall tape ,bed it and skim it and then sand it .But use caulk it will seal the crack quickly and remain flexible so it is less likely to crack again.

Answer 6

Cut the crack into a V shape, replaster that and feather the edges. Also several thin coats are better than a few heavy coats.

Answer 7

I use spackling compound. Easy to work with, cleans up with water, dries fast. May shrink a little, re-do another layer.

Answer 8

I would suggest to apply plaster, n paint it !