scope:

The requirements described in this section are used in conjunction with the Property Requirements indicated for each specific grade in the tables at the end of the specification. MPAPS G-5 is divided into multiple sections as follows:

Paint Finish Requirements -

Outlines classes of finish for Navistar. It defines requirements and describes physical properties, which govern durability, corrosion protection, and overall appearance quality. It also outlines the procedure for specifying paint materials. All test designations refer to the latest issue unless otherwise stated. Unless otherwise specified, all test methods refer to Navistar MPAPS GT - Paint methods.

Topcoats -

This part of the specification covers the requirements for topcoats used by the Company as finish coatings on its products, as well as topcoats that are packaged and sold by the company for service. The General Requirements described in this section are used in conjunction with the Property Requirements indicated for each specific grade of topcoat to describe the complete requirements for each grade. Film requirements for interior paints are detailed in MPAPS G-9009 Class IIIA.

Grade - 17HS Hi Solids Urethane

Grade - 18 1K Base Coat / 2K Urethane Clear Coat

Grade - 19HS Hi Solids TSA

Grade - 22 2K Urethane Base Coat / 2K Urethane Clear Coat

Chassis and Miscellaneous Paints -

This part of the specification covers the requirements for engine, chassis, and miscellaneous paints. Heat resistant grades used as a finish coating on exhaust system components are covered by MPAPS G-9015. Components purchased already painted are covered by MPAPS G-9009.

Grade -32 HS/Ur Urethane Chassis Paint

Grade -32 W Waterborne Chassis Paint (bus)

Casting Sealers - This covers the requirements for paints/sealers used to seal steel, malleable, nodular, and gray iron castings. This specification no longer covers materials for this purpose. Please see MPAPS G-9009 for requirements.

Primers -

This part of the specification covers the requirements for primers used with various topcoats. Primed parts that are received as a finished part are covered by MPAPS G-9009.

Grade -52 Adhesion Promoter / Primer

Grade -54 Repair Primer

Grade -56 E-Coat Primer

Paints for Repair and Service -

This part of the specification covers the requirements for materials used in repair or refinishing. These materials are also for sale under the Navistar trademark. All paints formulated to this part of the specification must be manufactured with compounds that are lead and chrome free.

Grade -61 Repair Paint, Pressurized Containers

Grade -62 Air Dry Paint for Refinishing, Repair

Engine Paints -

This part of the specification covers the General Requirements for paints used by the Company as a finish coating on engines and engine products.

Grade -81W Waterborne Engine Paint

Pre-Treatment Systems -

This covers the requirements for chemicals used to pre-treat metals and other materials prior to priming or painting for production, service or repair.

Grade -100 Zinc Phosphate System

Grade -110 Two component non-sanding pretreatment on bare metal

Restricted Chemical Substances

All product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. All paints formulated to this specification must be manufactured with compounds that are lead and chrome free.