N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 56-8.7

Current through Register Vol. 46, No. 50, December 11, 2024

Section 56-8.7 - Encapsulation procedures

All material used for repair or encapsulation of asbestos material shall have a flame spread rating, fireproofing and smoke characteristics similar to the material being repaired or encapsulated. Also, the encapsulant shall not alter the insulating characteristics of the material subject to encapsulation, and the encapsulant shall not add excess weight to the material increasing the potential that the material may delaminate from itself (cohesion failure), or from its substrate (adhesion failure). Encapsulation of asbestos material shall be conducted in accordance with the following:

(a) Regulated abatement work area preparation. The regulated abatement work area shall be pre-cleaned, isolated and negative air established in accordance with Subpart 56-7 of this Part.

(b) Repair materials. Damaged and missing areas of existing materials shall be repaired with non-asbestos material. The material shall adhere to existing surfaces and provide a base for application of encapsulating agents.

(c) Asbestos material removal. Loose or hanging ACM, PACM or asbestos material shall be removed in accordance with the requirements of section 56-8.4 of this Subpart.

(d) Testing of encapsulants. Encapsulants shall be field tested prior to use by applying each to a small area to determine suitability for the material to be encapsulated. Testing shall be conducted only after the isolation barriers are in place and negative air has been established.

(e) Bridging encapsulants.

(1) Thickness requirements. Bridging encapsulants shall be applied to provide the manufacturer's specified minimum dry-film thickness over sprayed asbestos surfaces.

(2) Color requirement When using bridging encapsulant, a different color for each coat shall be used.

(f) Latex paint. Latex paint shall not be used as a bridging encapsulant. It shall be considered a dilute lockdown encapsulating agent and used only as a coating for lockdown purposes for surfaces during cleanup procedures as per Subpart 56-9 of this Part.

(g) Penetrating encapsulants.

(1) Penetration requirements. Penetrating encapsulants shall be applied and penetrate existing asbestos material to the substrate.

(2) Testing of penetration. During treatment with a penetrating encapsulant, selected random core samples of asbestos material shall be removed and checked to verify full depth of penetration.

(3) Color requirement. Each coat of penetrating encapsulant shall be color coded as per manufacturer's recommendations, if any, except for the prohibition of pigment use.

(h) Methods of application. Encapsulants shall be applied using airless spray equipment as follows:

(1) Spraying pressure. Spraying shall be performed at the lowest pressure range possible to minimize asbestos fiber release.

(2) Spray tip. The optimum spray tip shall be chosen on the basis of the viscosity and percent solids of the encapsulant. The cone projection of the tip shall be as specified by the manufacturer.

(3) Subsequent coats. Each subsequent coat of encapsulant shall be applied at a 90-degree angle to the preceding coat application or per manufacturer's specifications.

(4) Encapsulant solvent or vehicle. The encapsulant solvent or vehicle shall not be or contain a volatile material. It shall not release hazardous air pollutants, as defined by NYS DEC 6 NYCRR section 200.1(ag), into the air when applied or during curing.

(i) Encapsulant fire-resistance properties. If the asbestos material has been used for fire retardation or protection of structural members or both, the encapsulant material used shall have a flame spread rating, fireproofing and smoke characteristics similar to the material being repaired or encapsulated.

(j) Marking or labeling. Encapsulated ACM, PACM, or asbestos material shall be conspicuously marked or labeled in order to warn persons of its presence.

(k) Cleanup. Waste cleanup shall be in accordance with section 56-8.5 of this Subpart.

(l) Final cleaning and clearance air sampling. Final cleaning and clearance air sampling shall be in accordance with Subpart 56-9 of this Part.

N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 56-8.7