What is one application of petrolatum (wax) tapes?

Petrolatum tapes are widely recognized for their role in providing corrosion protection. These tapes are primarily used to cover and protect metallic surfaces from moisture, oxygen, and carbon dioxide, which are key contributors to corrosion. The formulations of these tapes include a blend of petrolatum, wax, and sometimes mineral fillers, which create a barrier that significantly reduces the likelihood of corrosion forming on the surfaces they cover.

In environments where pipes or other metallic structures are exposed to harsh conditions, petrolatum tapes are particularly valuable because they conform to the surface and can seal out moisture effectively. They are often used in conjunction with other coatings or protective measures to extend the lifespan of the materials by preventing corrosive elements from reaching them.

When considering the other options, while thermal insulation, primary coatings, and enhancement of adhesion have their place in different applications, they do not capture the main function of petrolatum tapes, which is to prevent corrosion.