Varnishes, paints, enamels often Packed in tin cans with a wide lid-stopper. But no matter how tight it fit, the tightness over time is broken: part of the contents when pouring over the edge dries up on the edge and prevents tight closing of the jar. However, when the expenditure of material in small portions is better to pour it not so, and through the drilled a hole in the lid Ø 6 — 10 mm (depending on viscosity). The air hole Ø 3 mm do the opposite of the cover. “Plug” these holes will serve as a piece of adhesive tape or thick tape.
Recommend to read
“CHAIKA” – NON-MOTORIZED GYROPLANE
The non-motorized gyroplane “Chaika” was developed by students of the Riga Institute of Civil Aviation Engineers and is intended for initial training, sport flights and the promotion of...
ERSATZ SCOOP
Depending on the desired size of the scoop for the bulk materials (cement, sand) pick up a tin can and cut the second bottom using the tin snips give the workpiece shown in the form. It...
