Elimination and Substitution
Elimination
To eliminate lead hazards:
- Use only materials and chemicals that do not contain lead on new projects.
- Remove all paint on the part that is a chewable, impact, or friction surface.
- Remove all loose, peeling, chipping, flaking, or otherwise deteriorating paint from the surface.
Replacing old windows is an example of substitution.
- Cover lead-containing surfaces. Paint alone is NOT sturdy enough to cover chewable, impact, and friction surfaces.
- If walls are in poor condition, you can cover them with wallboard or paneling. If exterior siding is deteriorated and will not hold paint, you can cover it with new siding.
- If it is not feasible to completely remove lead-containing soil, cover it with at least 6 inches of rock, mulch, or similar materials.
Substitution
Use one or more of the following options to reduce lead hazards:
- Use zinc-containing primers covered by an epoxy intermediate coat and polyurethane topcoat instead of lead-containing coatings.
- Substitute mobile hydraulic shears for torch cutting under certain circumstances.
- Consider surface preparation equipment, such as needle guns, instead of abrasive blasting.
- Use chemical strippers instead of hand scraping with a heat gun for work on building exteriors, surfaces involving carvings or molding, or intricate iron work. Chemical removal generates less airborne lead dust.
- Replace lead-based painted building components such as windows, doors, and trim with new components free of lead-containing paint. Another option is to remove the paint off site and then repaint the components with zinc-based paint before replacing them.
Knowledge Check Choose the best answer for the question.
2-2. Replacing lead-based painted components with new led-free painted components in an existing building is an example of which control strategy?
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