How to Filter Latex Paint

Spread newspapers over the work surface. They catch any drips or splatters, protecting the working surface.

Remove the lid of the paint can using a flat-head screwdriver by carefully prying up the lid. Look at the paint’s surface for a film or crust. Remove any crust with your hands and discard. If there is a film, you may be able to gently swirl it around a stir stick and lift it out of the paint. Discard the stick.

Stir the paint. If it is too thick, add water up to an ounce at a time until you reach your desired consistency. Watch for lumps as you stir.

Unfold your paint strainer/filter so that it forms a cup.

Hold it the paint can over a receptacle, such as another paint can or a clean pail. It is easier to have a helper hold the filter while you pour the paint.

Pour the paint through the filter, going slowly so that it does not overflow. If the paint begins to filter too slowly or back up in the strainer, dispose of that strainer and use a fresh one.