When should encapsulation not be used?

Encapsulation is a method used in lead hazard management that involves applying a barrier coating to prevent lead dust and chips from being released into the environment. It's particularly effective in certain settings but has limitations, especially in scenarios involving high wear and tear.

In areas subjected to impact and friction, encapsulation may not be effective because these surfaces can experience significant abrasion or contact that can degrade the encapsulant over time. This degradation can lead to exposed lead-containing materials, which defeats the purpose of encapsulation and can pose a risk of lead exposure.

Conversely, areas with low foot traffic, indoor surfaces, and outdoor surfaces generally allow for a stable environment where encapsulation can be effective in preventing lead exposure. For instance, low foot traffic areas are less likely to experience the wear that could compromise the encapsulation, whereas indoor and outdoor surfaces can be treated appropriately as long as they do not face substantial friction or impact. Therefore, impact and friction areas are the situations where encapsulation should be avoided.