What should you apply before sealing the paint can?

• A. Tape
• B. Bloxygen
• C. Desiccant
• D. Wax

Answer: (B)

Purging the air in the can before sealing helps keep paint from oxidizing and curing too quickly. Bloxygen is a product designed to do exactly that: it displaces the oxygen in the can’s headspace with an inert gas, creating a protective blanket that slows oxidation and skin formation. By applying Bloxygen right before sealing, you maximize how long the paint stays usable.

Other options don’t achieve this effect. Tape only covers the lid; it doesn’t remove or replace the air. A desiccant targets moisture but doesn’t reduce oxygen levels, so oxidation can still occur. Wax would form a barrier, but it isn’t a standard or reliable method for preserving paint and could interfere with sealing. Bloxygen is specifically used to extend paint life by reducing oxygen exposure.