It may sound obvious, if not cliche, but primary containment is the first line of defense when storing hazardous materials. These are the containers, such as tanks, bottles, or drums, that are in direct contact with dangerous substances, putting them at significant risk of damage and degradation. Hazardous materials require special solutions for a reason; they’re often highly flammable, corrosive, or reactive, and will readily destroy many common container materials. And even with the right container materials, primary containment systems remain vulnerable to the effects of weathering and abrasion, which necessitate equally robust secondary containment strategies to ensure safety even when primary containment fails. To strengthen primary containment, protective coatings like polyurea can be used to create leakproof, chemically resistant, and highly durable barriers that insulate container materials from their environment, leaving them unaffected by mechanical stress and chemical corrosion.