How long must encapsulation last to be classified as permanent?

How long must encapsulation last to be classified as permanent?

• A. 20 years
• B. 5 years
• C. 10 years
• D. 50 years

Answer: (A)

Encapsulation is considered permanent when the encapsulant is expected to remain intact for a long period under typical use. The standard benchmark for permanence is twenty years. If the encapsulant is only expected to last shorter than that, it isn’t viewed as permanent and will likely require reapplication or replacement later. So twenty years is the duration used to classify encapsulation as permanent. Five or ten years are too short to meet this durability, and fifty years isn’t the defined minimum.

Encapsulation is considered permanent when the encapsulant is expected to remain intact for a long period under typical use. The standard benchmark for permanence is twenty years. If the encapsulant is only expected to last shorter than that, it isn’t viewed as permanent and will likely require reapplication or replacement later. So twenty years is the duration used to classify encapsulation as permanent. Five or ten years are too short to meet this durability, and fifty years isn’t the defined minimum.