Sand down smooth and paint as for flexible decorators caulk is good if its to be used in corners tops of skirting etc.
Best decorators caulk for ceiling cracks.
A wide bladed filling knife or caulking blade is the ideal tool here with two or three applications of filler being best sanding between coats.
Sashco big stretch acrylic latex high performance caulking sealant.
As for on the flat of a wall or ceiling ha well for a start you can not sand it and to brush it with water is going to make it look even worse.
In the summer when the crack becomes smaller the caulk should compress and look pretty good.
Best used for filling gaps between skirting boards doorframes or the edges of shelves and the wall.
When you caulk be sure to use a damp sponge to wipe any and all excess caulk from the ceiling and wall.
Lines of caulk can be prone to cracking if applied in the wrong conditions.
The best remedy i ve found for these situations is to apply self adhesive scrim tape along the crack and then fill over the top of it with a wide band of all purpose filler.
The best sponge is one used to grout ceramic tile.
Remember not to over fill as it will need sanding fill it in layers is best.
Although there are different kinds of exterior caulk available in the market for different kinds of surfaces and uses here are the ten best exterior caulk that you can choose from.
You will need to rake out the crack use pollyfiller to re fill.
After years of fixing the same drywall cracks over and over again i finally found a product to eliminate those annoying cracks once and for all big stretch sealant.