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POST REMOVAL LOCKDOWN AND SPRAYBACK PROCEDURES

Understand the processes of lockdown and sprayback operations in asbestos removal. Learn about criteria, substitutes, influencing factors, and materials used for spraybacks in various applications such as fireproofing, thermal insulation, and condensate control.

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POST REMOVAL LOCKDOWN AND SPRAYBACK PROCEDURES

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  1. POST REMOVAL LOCKDOWN AND SPRAYBACK PROCEDURES •Understand what is meant by lockdown/sprayback operations •Understand decision criteria used in lock-down/sprayback procedures •Become familiar with the various asbestos-free substitutes available • Understand factors which might influence the use of certain sprayback materials

  2. LOCKDOWN Application of a protective coating or sealant to “lockdown” or encapsulate any residual fibers that might be present after removal has taken place.

  3. SPRAYBACK The process of replacing asbestos-containing material that was originally present with an effective asbestos-free substitute.

  4. ASBESTOS USED FOR • Fireproofing • Thermal insulation • Acoustical insulation • Condensate control • Decoration

  5. SPRAYBACKS FOR THERMAL INSULATION • Mineral wool • Exfoliated Vermiculite • Treated Cellulose • Fibrous Glass

  6. SPRAYBACKS FOR ACOUSTICAL INSULATION • Spray-applied Cellulose • Mineral Wool • Fibrous Glass • Perlite

  7. SPRAYBACKS FOR CONDENSATE CONTROL • Foam Rubber • Cork • Fibrous Glass

  8. SPRAYBACKSFOR HOT PIPES • Fibrous Glass • Asphalt-impregnated Paper • Calcium Silicates • Mineral Wool

  9. SUMMARY • Ensure lockdown and sprayback are compatible • No new health hazard presented • Ensure sprayback has similar desired properties

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