37/40 Prevent paint from skinning over
To avoid finding a dried paint skin on the surface of an opened can, use a simple two-step method before sealing it. First, place the can on a sheet of aluminum foil, trace its outline, and cut out a matching circle. Lay this foil disk gently over the surface of the remaining paint. Next, exhale into the can and immediately seal it. The carbon dioxide from your breath displaces some of the oxygen, helping to slow down the drying process and preserve the paint’s quality.
