Section 719 — Coating Material

719.01General. Provide a contrasting color for each coat of the coating system. Provide color chips from the coating supplier.

(a)Packaging. Provide coatings in strong, substantial containers, plainly marked with the following:

(1)Trade name or trademark;

(2)Coating type, color, formulation, lot number, and date of manufacture;

(3)Net mass;

(4)Volume including the percent of solids and the percent of VOC;

(5)Storage requirements and shelf life;

(6)Mixing instructions and equipment cleanup instructions; and

(7)Name and address of the manufacture r.

(b)VOC content. Conform to the following VOC limits for both shop- and field -applied coatings:

(1)Clear (unpigmented) coatings 3.7 lb/gal maximum

(2)Other coatings 2.9 lb/gal maximum

(c)Lead content. Provide coatings with zero lead content.

(d)Other properties. Provide coatings that:

(1)Do not show excessive settling in a freshly opened full container;

(2)Easily redisperse with a paddle to a smooth, homogeneous state free of curdling, livering, caking, color separation, lumps, and skins;

(3)Do not skin within 48 hours in a three- quarter filled, closed container;

(4)Brush on easily;

(5)Possess good leveling properties;

(6)Show no running or sagging tendencies when applied to vertical surfaces;

(7)Dry to a smooth uniform finish, without roughness, grit, unevenness, and other surface imperfections;

(8)Show no streaking or separation when flowed on clean glass; and

(9)Show no thickening, curdling, gelling, or hard caking after 6 months of storage in a full, sealed container stored at a temperature of 70 ºF.

719.02Coating for Iron and Steel S tructures. Provide a coating system conforming to AASHTO R 31, and that appear s in one of the following:

(a)AASHTO Product Evaluation & Audit Solutions; or

(b)North East Protective Coating Committee .

719.03Coating for Aluminum Structures. Provide a coating system conforming to American Architectural Manufacturers Association 2605 specifications.

719.04Coating for Other Structural Material. Provide coatings on the Master Painters Institute (MPI) approved products lists as shown in Table 719-1. Table 719-1

Coating for Other Structural Material

Substrate Coating

Primer Intermediate Finish

Lumber & Timber MPI #5 MPI #5 or #6 MPI # 10 Masonry Block MPI #4 MPI #10 or #11 MPI #10 or #11 Concrete MPI #108 or #177 – – Other Metals MPI #107 or #134 MPI #5 or #6 MPI #5 or #6

719.05Penetrating Stain for Concrete. Provide coatings on MPI Approved Products List #58.