Filling Wall Cracks

 

 

Filling Wall Cracks

There are many ways to fill wall cracks. One of the easiest is to use caulk filler that comes in cartridge and is used in a caulk gun.

Cartridges that are filled with caulk filler are readily available at hardware stores.

Cut off the seal at the end of the cartridge and screw on the plastic nozzle. Cut the end of the nozzle to a 45 degree angle. Fit the cartridge into a caulking gun. Squeeze the trigger on the gun until the white caulk can be seen in the nozzle. As you squeeze the handle on the gun a plunger on the gun pushes a seal in the cartridge towards the nozzle, forcing the caulk out of the end of the nozzle. Run the caulk into the crack. Use your finger or a scraper to flatten the filler to the shape of the wall. If you use your finger, wet the finger on a damp cloth each time you flatten the filler. Water based fillers often shrink as they dry and a second coat may be necessary. The cartridge gun gives very good control of the caulk.

The caulk filler that you use should be water based and paintable. There are many products available in cartridges, you don’t want to use a silicon or a roof sealant for this job. Chat to the hardware store assistant and buy the cheap, water based, paintable filler.

Filling wall cracks is quick and easy if you use the right product and a long, boring laborious grind if you use the wrong product. For instance you get the powders that need to be mixed with water. Avoid these! You mix them up, put them in the crack and when they dry they shrink, so you get a dip and you have to mix and fill a 2nd time. Then, when they’re finally flat you have to use a plaster primer to seal them before you can paint.

My advice: Use a pre mixed water based acrylic caulk in a cartridge. They’re very easy to work with, generally do not shrink and can be top coated when dry, which is after about 2 hours.

 
cracks Interior