AEP-64

NATO STANDARD

AEP-64
PERFORMANCE REQUIREMENTS FOR PAINT SYSTEMS
RESISTANT TO CHEMICAL AGENTS AND DECONTAMINANTS, FOR
THE PROTECTION OF LAND MILITARY EQUIPMENT

Edition A Version 1
December 2012

NORTH ATLANTIC TREATY ORGANIZATION

ALLIED ENGINEERING PUBLICATION

Published by the
NATO STANDARDIZATION AGENCY (NSA)
© NATO/OTAN
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NORTH ATLANTIC TREATY ORGANIZATION

NATO STANDARDISATION AGENCY (NSA)

NATO LEITER OF PROMULGATION

18 December 2012

1. The enclosed Allied Engineering Publication AEP-64, PERFORMANCE

REQUIREMENTS FOR PAINT SYSTEMS RESISTANT TO CHEMICAL AGENTS
AND DECONTAMINANTS FOR THE PROTECTION OF LAND MIUTARY
EQUIPMENT. which has been approved by the nations in AC/327, is promulgated
herewith. The agreement of nat1ons to use this publication is recorded 1n STANAG
4360

AEP-64 (Edition A) is effective upon receipt

3 No part of this publication may be reproduced, stored in a retrieval system,

used commercially, adapted. or transmitted in any form or by any means, electronic,
mechanical, photo-copying, recording or otherwise, without the prior permission of
the publisher. With the exception of commercial sales, this does not apply to
member nations and Partnership for Peace countries, or NATO commands and
bodies

This publicatiOn shall be handled in accordance with C-M(2002)60.

It is permissible to distribute copies of thiS publication to Contractors and

Suppliers and such distribution is encouraged

~
Dr. Cihangir Aksit, TUR C1v
Director NATO Standardization Agency

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RECORD OF RESERVATIONS

CHAPTER RECORD OF RESERVATION BY NATIONS

Note: The reservations listed on this page include only those that were recorded at time of
promulgation and may not be complete. Refer to the NATO Standardization Database for
the complete list of existing reservations.

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RECORD OF SPECIFIC RESERVATIONS

[nation] [detail of reservation]

Note: The reservations listed on this page include only those that were recorded at time of
promulgation and may not be complete. Refer to the NATO Standardization Database for
the complete list of existing reservations.

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TABLE OF CONTENTS

CHAPTER 1 : INTRODUCTION ........................................................................................ 1-1

CHAPTER 2 : SCOPE (inc. Field of Application) ............................................................ 2-1

CHAPTER 3 : NORMATIVE REFERENCES ..................................................................... 3-1

CHAPTER 4 : GENERAL CHARACTERISTICS .............................................................. 4-1

4.1 Requirement ...................................................................................................... 4-1
4.2 Description of Paint Systems.............................................................................. 4-1
4.3 Particular Characteristics ................................................................................... 4-1

CHAPTER 5 : COMPOSITION AND PERFORMANCE REQUIREMENTS FOR PAINTS . 5-1

5.1 Primer "P" .......................................................................................................... 5-1
5.2 Finishing Paints "F" ............................................................................................ 5-1
5.3 Test Requirements for Primers, Finish Coats and Paint Systems ....................... 5-1

CHAPTER 6 : STANDARD PANELS FOR TESTING........................................................ 6-1

6.1 Choice of Substrate ............................................................................................ 6-1
6.2 Surface Preparation ........................................................................................... 6-1
6.3 Paint Application ................................................................................................ 6-1
6.4 Number, Dimensions and Substrate for Test Panels .......................................... 6-2

CHAPTER 7 : TEST METHODS ........................................................................................ 7-1

7.1 Method 1 : Resistance to Tri-n-butyl phosphate ................................................. 7-1
7.2 Method 2 : Resistance to Hydrocarbons ............................................................. 7-1
7.3 Method 3 : Resistance to Acids .......................................................................... 7-1
7.4 Method 4 : Resistance to Decontaminants ......................................................... 7-2
7.5 Method 5 : Falling Weight Test ........................................................................... 7-2
7.6 Method 6 : Resistance to Artificial Weathering ................................................... 7-2
7.7 Method 7 : Resistance to Hydraulic Fluids.......................................................... 7-3

CHAPTER 8 : CHROMATOGRAPHIC ANALYSIS CONDITIONS.......................................................... 8-1

8.1 Applied System .................................................................................................. 8-1
8.2 Primer and Finishing Paint ................................................................................. 8-1
8.3 Other Information ............................................................................................... 8-1

Annex A - Test Panel Substrates and Dimensions ................................................. A-1

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FORWORD

Member nations agree that the specifications for paints and paint systems will define
the minimum quality level that may be demanded.
Any specification prepared by a member nation shall comply with the minimum
requirements indicated in this Allied Publication, but could include, in addition to the
characteristics and/or tests mentioned in Chapter 5, more stringent quality
requirements and/or additional tests intended to improve the performance of the
products. This Allied Publication does not include methods on non metal substrates.
Methods should be agreed between the supplier and purchaser.

This Allied Publication calls for the use of reagents or substances and/or test
methods that may be injurious to health if adequate precautions are not taken.
Aiming only technical suitability, this Allied Publication does not however absolve
either the manufacturer, the painting operator or the user from the statutory
obligations relating to any stage of manufacture, storage, handling, transportation,
usage or disposal.
A nation may implement the Allied Publication for land military equipment according
to the options (a) and/or (b) below:

a) national equipment;
b) equipment covered by bilateral or multilateral contracts with one or several NATO
countries.

For option (a), the Allied Publication shall be considered to have been enforced by a
member nation, when the latter has made its specifications comply with the
requirements of this Allied Publication.

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CHAPTER 1 – INTRODUCTION

The aim of this Allied Publication is to define the minimum quality level for a paint
system resistant in particular to chemical agents and decontaminants, for the
protection of land military equipment. The paint system shall comply with the
requirements of Chapter 2 and Chapter 4 and shall be formulated from products
meeting the requirements of Chapter 5..

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CHAPTER 2 – SCOPE (inc. Field of Application)

2.1 Scope

2.1.1 This publication deals with the performance requirements for the protection
of land military equipment by paint systems having the following functions:

a. Corrosion control.
b. Chemical agent resistance.
c. Camouflage.

2.1.2 This publication defines the minimum requirements which paint systems
must comply, in particular with reference to the following:
a. Laboratory performance test methods for assessment of the durability of the
protective paint system(s).
b. Evaluation criteria for performance testing.
c. Acceptance criteria.

2.2 Field of Application

2.2.1 The field of application for which this Allied Publication is developed is
characterized by:

a. the type of land military equipment.

b. the environment.
c. the durability.
d. the type of paint works.
e. the type of substrate and surface treatment.
f. the type of paints.

2.2.2 The Type of Land Military Equipment

a. It covers internal and external surfaces for:

(1) Armoured vehicles and their appurtenances.
(2) Transportation vehicles and their appurtenances.
(3) Engineering equipment.
(4) Shelters (including COLPRO Collective Protective Shelters in accordance with
AEP-54).
(5) Portable and deployable Decontamination Systems.

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b. It does not cover ammunitions and aircrafts.

2.2.3 The Environment

The land military equipments are submitted to a wide range of environments versus
the operational use. The average environment considered in this publication
corresponds to the corrosivity category C3 (medium) as defined in the standard ISO
12944-2.

2.2.4 The Durability

The considered paint system is of High Durability in accordance with ISO 12944-1
and must have a minimum life expectancy of 15 years (ISO 12944-1) before a
complete removal. During this period, localized repairs and general topcoat
applications are undertaken. The colorimetric properties of the topcoat should have
a good stability for a minimum period of 2 years.

2.2.5 The Type of Paint Works

The applications covered by this publication are first application or equivalent (after
total removal of pre-existing coatings). The first application paint system must be
adapted to maintenance procedures such as localized repairs (due to mechanical
damages, weld burn, etc) and general topcoat application.

2.2.6 The Type of Substrate and Surface Treatment

The substrates contained in this AP are steel and aluminium alloys. For application
on equipment, substrate cleaning and pre-treatment shall be undertaken in
accordance with the paint manufacturers’ recommendations. The tests carried out in
this publication are without any pre-treatment as defined in ISO 4618.

2.2.7 The Type of Paints

a. The paints shall be suitable for both spray and brush application. The paints
shall be capable of being applied at a range of temperatures, but this may incur a
penalty with regard to pot life and drying times.
b. The materials shall meet the relevant operational environmental requirements of
each member Nation.
c. Gloss levels, emissivity and reflectance values are not covered by this
publication.

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CHAPTER 3 – NORMATIVE REFERENCES

AEP-7 Nuclear, biological and chemical (NBC) defence factors in the

design, testing and acceptance of military equipment
AEP-54 Collective Protection (COLPRO) in a Chemical, Biological,
Radiological and Nuclear (NBC) Environment
AEP-65 Performance Requirements and Test Method for Paint Systems
Resistant to Chemical Warfare Agents
EN 3212 Aerospace series - Corrosion resistance test by alternate
immersion in buffered sodium chloride solution
ISO 1514 Paints and varnishes - Standard panels for testing
ISO 1518 Paints and varnishes - Scratch test
ISO 1519 Paints and varnishes - Bend test (cylindrical mandrel)
ISO 2409 Paints and varnishes - Cross-cut test
ISO 2808 Paints and varnishes - Determination of film thickness
ISO 2812-1 Paints and varnishes - Determination of resistance to liquids Part
1: General Methods
ISO 2812-2 Paints and varnishes - Determination of resistance to liquids Part
2: Water Immersion
ISO 2813 Paints and varnishes - Measurement of specular gloss of non-
metallic paint films at 20 degrees, 60 degrees and 85 degrees
ISO 3668 Paints and varnishes - Visual comparison of the colour of paints
ISO 3696 Water for analytical laboratory use. Specification and test
methods
ISO 4618 Paints and varnishes - Terms and definitions
ISO 4623-2 Paints and varnishes - Determination of resistance to filiform
corrosion – Part 2: Aluminium substrates
ISO 4628-2 Paints and varnishes - Evaluation of degradation of coatings -
Designation of quantity and size of defects, and of intensity of
uniform changes in appearance - Part 2: Assessment of degree of
blistering
ISO 4628-8 Paints and varnishes - Evaluation of degradation of coatings -
Designation of quantity and size of defects, and of intensity of
uniform changes in appearance - Part 8: Assessment of degree of
delamination and corrosion around a scribe
ISO 4628-10 Paints and varnishes - Evaluation of degradation of coatings -
Designation of quantity and size of defects, and of intensity of
uniform changes in appearance - Part 10: Assessment of degree
of filiform corrosion

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ISO 6270-1 Paints and varnishes - Determination of resistance to humidity -

Part 1 Continuous condensation
ISO 6272-1 Paints and varnishes - Falling weight test
ISO 7724-2 Paints and varnishes – Colorimetry: Part 2 Colour Measurement
ISO 8503-1 Preparation of steel substrates before application of paints and
related products - Surface roughness characteristics of blast-
cleaned steel substrates - Part 1: Specifications and definitions for
ISO surface profile comparators for the assessment of abrasive
blast-cleaned surfaces
ISO 9227 Corrosion tests in artificial atmospheres – Salt spray tests
ISO 11507 Paints and varnishes - Exposure of coatings to artificial
weathering – Exposure to fluorescent UV and water
ISO 11997-1 Paints and varnishes - Determination of resistance to cyclic
corrosion conditions - Part 1: Wet (salt fog)/dry/humidity
ISO 12944-1 Paints and Varnishes - Corrosion Protection of Steel Structures by
Protective Paint Systems - Part 1: General Introduction
ISO 12944-2 Paints and Varnishes - Corrosion Protection of Steel Structures by
Protective Paint Systems - Part 2: Classification of Environments
ISO 17872 Paints and varnishes - Guidelines for the introduction of scribe
marks through coatings on metallic panels for corrosion testing
STANAG 1135 Interchangeability of fuels, lubricants and associated products
used by the Armed Forces of the North Atlantic Treaty Nations

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CHAPTER 4 – GENERAL CHARACTERISTICS

4.1 Requirement

The paint system and each of its components (primer and finish) shall meet the
requirements of Chapter 5.

4.2 Description of Paint Systems

Table 1 below lists the current components of a multi-coat paint system, with
corresponding symbols P, F and S, dry film thickness and tolerance for each coat.
The dry film thickness values given in Table 1 are for production painting.

Table 1 - Components of Multi-coat Paint System

Component
Symbol Minimum Dry Film Thickness in µm
Designation
Primer P Not less than the minimum recommended by
the paint manufacturer

Finishing Paint F Not less than the minimum recommended by

the paint manufacturer

Paint System S 75 +

4.3 Particular Characteristics

4.3.1 The following tests shall be carried out on the reference paint system (see
Chapter 6), unless otherwise indicated.

4.3.2 The paint manufacturer must supply the information detailed in Chapter 8

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CHAPTER 5 – COMPOSITION AND PERFORMANCE REQUIREMENTS FOR

PAINTS

5.1 Primer "P"

5.1.1 Two primer types may be distinguished, namely:

(a) For the protection of ferrous substrates.

(b) For the protection of non-ferrous substrates.

Note. Some corrosion resistant primers may be used on both ferrous and non-
ferrous substrates.

5.1.2 Composition

The primer shall consist of a pigmented multi-pack resin.

Note. A technical justification is required for the use of chromates.

5.2 Finishing Paints "F"

5.2.1 Composition

The finishing paint shall consist of a pigmented, durable multi-pack resin.

5.3 Test Requirements for Primers, Finish Coats and Paint System

5.3.1 A sample taken from any part of the supply shall comply with the
requirements in Table 2. Tests shall be carried out on P or S as indicated.

5.3.2 It is strongly recommended to conduct the optional screening Test 2 prior to

the Chemical Agent Resistance test of AEP-65 (test 12), as it provides a general
indication of pass/fail criteria of the Chemical Agent Resistance test.

5.3.3 Corrosion Resistance Tests for steel shall be undertaken by conducting

either Test 14a or 14b; and for aluminium alloys either Test 15a or 15b.

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Table 2 – Test Requirements

No P S Test Substrate Test Method Limits

(1)
1 • • Appearance - - Surface without visible defects * when
prepared in accordance with Annex C
Method 1C
(No wrinkling, orange peel, inclusions or
other visual defects).
2# • Screening Test Aluminium Method 1 No wrinkling, blistering, swelling or other
(Resistance to Alloy 5083 visual defects*.
Tri-n-Butyl or 7020-T6 Optical characteristics determined in
Phosphate) and Steel accordance with Test 3.
Scratch Test ISO 1518. Needle not to
penetrate the substrate under 1000g load.
3 Optical Aluminium Optical requirements specified in the
Characteristics: Alloy 5083 contract or order before and after testing
or 7020-T6 to Test No 2, 7,8,10, 13,and 16
• Visual and Steel ISO 3668
comparison of
the colour of the
paints Selection of specific details for testing
described in these standards require
• Specular Gloss ISO 2813 agreement between purchaser and
supplier.
• Colorimetry ISO 7724-2

4 • Scratch Aluminium ISO 1518 on ≥ 1500 g

Hardness Alloy 5083 total paint No penetration of finish coat to primer*.
or 7020-T6 system
and Steel
5 • Flexibility Aluminium BS EN ISO No cracking at an indentation depth of 3
(cupping test) Alloy 5083 1520 mm
or 7020-T6 X 10
and Steel Magnification
6 • • Cross-Cut Aluminium ISO 2409 Classification*: ≤ 1
Resistance Alloy 5083
(Adhesion) or 7020-T6
and Steel
7 • Continuous Aluminium ISO 6270-1 After 24 hours air drying:
Condensation Alloy 5083 240 h Adhesion (cross-cut test) ISO 2409
or 7020-T6 Classification ≤ 1.
and Steel Optical characteristics determined in
accordance with Test 3.
Optical tolerances - limits to be agreed
between the supplier and the purchaser.
No wrinkling, blistering, swelling or other
visual defects*.

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8 • Hydrocarbons Aluminium Method 2 After 24 hours air drying:

Resistance Alloy 5083 Adhesion (cross-cut test) ISO 2409
or 7020-T6 Classification ≤ 1.
and Steel Optical characteristics determined in
accordance with Test 3.
Optical tolerances - limits to be agreed
between the supplier and the purchaser.
No wrinkling, blistering, swelling or other
visual defects*.

9 • Acids Aluminium Method 3 No blistering, wrinkling

Resistance Alloy 5083 or other visible defects*.
or 7020-T6
and Steel
10 • Decontaminants Aluminium Method 4 Immediately after emersion and after 24
Resistance Alloy 5083 hours:
or 7020-T6 Limits of visually detectable defects to be
and Steel agreed between purchaser and supplier.
Adhesion (cross-cut test) ISO 2409
Classification ≤ 1.
Optical characteristics determined in
accordance with Test 3.
Optical tolerances - limits to be agreed
between the supplier and the purchaser.

11 • Falling Weight Aluminium Method 5 No cracking, peeling of the film or other

Test Alloy 5083 visible defects*.
or 7020-T6
and Steel
12 • Chemical Agents AEP-65 AEP-65 AEP-65
Resistance

13 • Artificial Aluminium Method 6 Before and after exposure:

Weathering Alloy 5083 No cracking or chalking*.
Resistance or 7020-T6 Adhesion (cross-cut test) ISO 2409
and Steel Classification ≤ 1.
Colour difference ≤ 2 ΔE units.
Other Optical characteristics determined
in accordance with Test 3.
Optical tolerances - limits to be agreed
between the supplier and the purchaser.
14a • Corrosion Steel ISO 9227 After 480 h exposure*:
Resistance 3.2.2 (using No corrosion of the panels.
(Neutral Salt scribed test c ≤ 1.5 mm creapage from scribe in
Spray) panel in accordance with ISO 4628-8.
accordance Blisters according to ISO 4628-2:
with ISO size ≤2
17872 density ≤ 3
b = 0.3 - 1.0
mm) After 24 hours air drying:
Adhesion (cross-cut test) ISO 2409
Classification ≤ 1.

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14b • Corrosion Steel ISO 11997-1 After 1008 h exposure*: Assess degree of
Resistance cycle B delamination around the scribe in
(Cyclic (using v- accordance with ISO 4628-8.
Corrosion) shaped or
rectangular Degree of delamination in
test panel in accordance with 5.2.2 (after drying) not
accordance exceeding 1.5 mm
with ISO
17872
b = 0.2 - 1.0
mm)
15a • Aluminium Alloys Burnished EN 3212 No flaking, blistering or corrosion, c ≤ 1.2
Corrosion Aluminium mm from scribe in accordance with ISO
Resistance by Alloys: 4628-8.*
Alternate 2024-T3
Immersion unclad, After 24 hours air drying:
5083 and Adhesion (cross-cut test) ISO 2409
7020-T6 Classification ≤ 1.
15b • Aluminium Alloys Burnished EN ISO There shall be no blistering or other film
Corrosion Aluminium 4623-2 defect. Corrosion.
Filiform Alloys: c ≤ 5 mm from scribe in accordance with
Corrosion 2024-T3 ISO 4628-10.*
Resistance unclad,
5083 and
7020-T6
16 • • Hydraulic Fluids Aluminium Method 7 No wrinkling, blistering, swelling or other
Resistance Alloy visual defects*.
5083 or Optical characteristics determined in
7020-T6 accordance with Test 3.
and Steel Adhesion (cross-cut test) ISO 2409
Classification ≤ 1.

# Optional test
*Examination by magnification 10X
(1) See Chapter 6

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CHAPTER 6 – STANDARD PANELS FOR TESTING

6.1 Choice of Substrate

The appropriate substrate for test shall be chosen from Table 3.

Table 3 - Ferrous and Non Ferrous Substrates

Substrate Grade
Steel ISO 1514 para 3.1
Aluminium Alloy 2024-T3 unclad
Aluminium Alloy 5083
Aluminium Alloy 7020-T6
Note. The size and number of test panels required for each test
are shown in Annex A.

6.2 Surface Preparation

Surface preparation shall be in accordance with the methods detailed in Table 4. For
Aluminium alloy the appropriate method shall be agreed between the supplier and
the purchaser.

Table 4 - Substrate Preparation

Substrate Preparation
Steel Burnishing in accordance with ISO 1514 para 3.5

Aluminium Alloy 2024-T3 Burnishing in accordance with ISO 1514 para 6.4
Unclad

Aluminium Alloy 5083

Aluminium Alloy 7020 T6

6.3 Paint Application

6.3.1 Ferrous and Non Ferrous Substrates - Total System (reference paint
system) Testing (S), as required in Chapter 5.

(a) Apply by spraying, in accordance with the manufacturers' technical data

sheet, successively the primer and finish paint, to obtain a total minimum dry
film thickness (dft) as recommended by the paint manufacturer (± 10 µm).
The primer coat shall be left to dry for 24 hours before applying the following
coat(s), unless otherwise indicated, in the paint manufacturers technical data
sheet.

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(b) Allow the paint system to dry under standardized conditions (23 ± 2 °C and
RH = 50 ± 5 %) for a period of 7 days after the application of the final coat,
unless otherwise indicated*.

Note. It may not be possible to apply the finishing paint in one coat due to possible sagging;
therefore, two coats may be necessary to achieve the correct thickness.

6.3.2 Ferrous and Non Ferrous Substrates - Single Component Testing (P) as
required in Chapter 5.

(a) Apply by spraying, in accordance with the manufacturers technical data sheet
a coat of component (P) on the appropriate substrate.

(b) Allow the paint to dry under standardized conditions (23 ± 2 °C and RH = 50 ±
5 %) for a period of 7 days after the application of the final coat, unless
otherwise indicated*.

* For Chemical Agents Resistance (Test 12) panel conditioning is defined in AEP-65.

6.4 Number, Dimensions and Substrate for Test Panels

6.4.1 Annex A details the information on the substrates used and the substrate
dimensions that are required for testing. The panel dimensions listed are to be used
unless otherwise specified in the appropriate test method.

6.4.2 All paint testing is to be carried out, at least in duplicate (2 test panels),
however some tests may require more than duplication to which the appropriate test
standard must be referred to. Chemical agent resistance requires 5 test panels for
each chemical agent and 1 reference panel for each agent.

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CHAPTER 7 – TEST METHODS

7.1 Method 1 – Resistance to Tri-n-butyl phosphate*

7.1.1 Immerse, in a vertical position, approximately 3/4 of the panel length for 168
hours at (70 ± 2°C).
7.1.2 When the immersion process is complete, remove residual material by
dabbing using absorbent paper, and allow to dry for 1 hour in standardized
conditions (23 ± 2°C and RH = 50 ± 5 %).
7.1.3 Examine the coating appearance at 10X magnification in order to detect
possible defects, such as blistering (in accordance with ISO 4628-2), wrinkling,
swelling or other visible defects.
7.1.4 Perform the scratch test in accordance with ISO 1518. The paint system
shall show no penetration of the needle to the primer under a 1000 g load.
*Fluid used: Tri-n-butyl phosphate (technical quality).

7.2 Method 2 – Resistance to Hydrocarbons

7.2.1 Immerse approximately 3/4 of the panel length at 23 ± 2°C for 24 hours, in a
30/70 v/v mixture of toluene and 2,2,4 trimethylpentane* (iso-octane) in accordance
with Method 1, Procedure A of ISO 2812–1.

7.2.2 Leave to dry for 24 hours in standardised conditions (23 ± 2°C and RH = 50
± 5 %) and re-examine at l0X magnification for blistering (in accordance with ISO
4628/2), wrinkling, swelling, colour change or other visible defects.

7.2.3 Determine the optical characteristics as defined in Test 3, Table 2, Chapter 5.

7.2.4 Perform the cross cut in accordance with ISO 2409.

*Recognized analytical quality (usually > 95 % purity).

7.3 Method 3 – Resistance to Acids

7.3.1 Place 3 to 5 ml of a 10 % v/v sulphuric acid solution onto the coated side of
the test panel and cover with a 50 mm diameter watch glass.

7.3.2 Allow the coating to be exposed to the acid for 1 hour.

7.3.3 Rinse thoroughly with deionized water in accordance with ISO 3696 Grade
3.

7.3.4 Leave to dry for 24 hours in standardized conditions (23 ± 2°C and RH = 50
± 5 %).

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7.3.5 Examine the coating at 10X magnification in order to detect possible defects,
such as blistering (in accordance with ISO 4628/2), wrinkling, swelling, colour
change or other visible defects.

7.4 Method 4 – Resistance to Decontaminants

7.4.1 Fully immerse the test panel, in a vertical position, in a suitable solution of
decontaminant (eg. DS2, BX24, GDS2000, Sodium or Calcium Hypochlorite)
contained in AEP-7, held at (23 ± 2)°C.

7.4.2 Carry out the cycle consisting of the following operations:

(a) Immerse the panel for 30 minutes.

(b) Rinse the panel with running water.

(c) Dry without rubbing using absorbent paper.

7.4.3 Immediately examine the coating at 10X magnification in order to detect

possible defects, such as blistering (in accordance with ISO 4628/2), swelling, colour
change or other visible defects.

7.4.4 Leave to dry for 24 hours in standardized conditions (23 ± 2°C and RH=50 ±
5 %) and re-examine at 10X magnification for blistering (in accordance with ISO
4628/2), wrinkling, swelling, colour change or other visible defects.

7.4.5 Determine the optical characteristics as defined in Test 3, Table 2, Chapter 5.

7.4.6 Perform the cross cut test in accordance with ISO 2409.

7.5 Method 5 – Falling Weight Test

Carry out the test on the front side of the test sample in accordance with ISO 6272-1
using a weight of 1000 grams and a stop to limit the indentation depth to 2.5 mm.
Examine the coating using a 10X magnification for cracking, peeling or other visible
defects.

Note. It will be necessary to ensure that the height of fall of the weight is sufficient to
produce an indentation depth of at least 2.5 mm in the absence of the stop. For steel
test panels complying with ISO 1514, a height of 1000 mm has been found to be
suitable.

7.6 Method 6 – Resistance to Artificial Weathering

7.6.1 Test the panel in accordance with ISO 11507, Method A, Type II, using the
following specifications:

7.6.1.1 Luminous source: UV-A lamp (λ= 340 nm).

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7.6.1.2 Cycle characteristics:

0
(a) Exposure to UV duration: 4 hours temperature: (60 ± 3) C;
0
(b) Condensation duration: 4 hours temperature: (50 ± 3) C;
(c) Total Duration: 1008 hours

7.6.2 After exposure, leave to dry for 24 hours in standardized conditions (23 ±
2°C and RH = 50 ± 5 %), unless otherwise indicated.
7.6.3 Examine the coating appearance at 10X magnification for cracking, chalking
or other visible defects.
7.6.4 Determine the optical characteristics as defined in Test 3, Table 2, Chapter 5.
7.6.5 Perform the cross-cut test in accordance with ISO 2409.

7.7 Method 7 – Resistance to Hydraulic Fluids

7.7.1 Test the panel in accordance with ISO 2812-1 (Method 1, Procedure A,
Para. 7.4) according to the following procedure:

7.7.1.1 Hydraulic fluid used: H-542 brake fluid*. (* see STANAG 1135).
7.7.1.2 Immerse, in a vertical position, approximately 3/4 of the panel length for 24
hours at (70 ± 2)°C.
7.7.1.3 When the immersion process is complete, remove residual material by
dabbing using absorbent paper, and allow to dry for 24 hours in standardized
conditions (23 ± 2°C and RH = 50 ± 5 %).
7.7.1.4 Examine the coating appearance at 10X magnification in order to detect
possible defects, such as blistering (in accordance with ISO 4628-2), wrinkling,
swelling or other visible defects.
7.7.1.5 Perform the cross-cut test in accordance with ISO 2409.

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CHAPTER 8 – PAINTS AND PAINT SYSTEMS - SUPPLIERS DATA

The paint system description sheet should contain the minimum following
information:

8.1 Applied System

Information for Applied System

- Manufacturers name and address
- Specification(s) used
- Colour and gloss
- General use and limitations
- Substrate surface and preparation
- Paint System Description inc. dft (µm)
- Quantity

8.2 Primer and Finishing Paint

Specific Information for Primer and Finishing Paint

- Trade name
- Main function
- Chemical class
- Dry film thickness (µm)
- Colour
- Material safety data sheet
- Batch number
- Date of manufacture
- Substrate surface and preparation condition for paint application
- Quantity
- Mixing ratio
- VOC content

8.3 Other Information

Other Information
- Qualification references
- Product data sheets containing all the other optional relevant information

8-1
Edition A Version 1
 ANNEX A TO
AEP-64

ANNEX A - TEST PANEL SUBSTRATES AND DIMENSIONS

Test Chapter 5 Substrate Number of Test Panels Dimensions
Table 2 Test Panels (mm)
Test No Required
Optical Characteristics 3 Aluminium Alloy 2 150 x 100 x 0.5
5083 or 7020-T6
Scratch Hardness 4 Aluminium Alloy 4 125 x 100 x 0.5
5083 or 7020-T6
and Steel
Flexibility 5 Aluminium Alloy 8 100 x 50 x 1
(cupping test) 5083 or 7020-T6
and Steel
Cross-Cut Resistance 6 Aluminium Alloy 8 150 x l00 x 0.5
(Adhesion) 5083 or 7020-T6
and Steel
Continuous 7 Aluminium Alloy 8 150 x 100 x 0.5
Condensation 5083 or 7020-T6
and Steel
Hydrocarbons 8 Aluminium Alloy 8 150 x 100 x 0.5
Resistance 5083 or 7020-T6
and Steel
Acids Resistance 9 Aluminium Alloy 4 150 x 100 x 0.5
5083 or 7020-T6
and Steel
Decontaminants 10 Aluminium Alloy 4 150 x 100 x 0.5
Resistance 5083 or 7020-T6
and Steel
Falling Weight Test 11 Aluminium Alloy 4 120 x 120 x 2
5083 or 7020-T6
and Steel
Chemical Agents 12 Aluminium Alloy 18 Refer to AEP-65
Resistance 5083 or 7020-T6 (includes 3
or Steel reference
panels)
Artificial Weathering 13 Aluminium Alloy 4 150 x 100 x 0.5
Resistance 5083 or 7020-T6
or Steel
Corrosion Resistance 14a Steel 2 150 x 100 x 0.5
(Neutral Salt Spray)
Corrosion Resistance 14b Steel 2 150 x 100 x 0.5
(Cyclic Corrosion)
Aluminium Alloys 15a Aluminium Alloy: 7 100 x 40 x 1
Corrosion 2024-T3 Unclad
Resistance by Alternate and 5083 and
Immersion 7020-T6
Aluminium Alloys 15b Aluminium Alloy: 7 100 x 40 x 1
Filiform Corrosion 2024-T3 Unclad
Resistance and 5083 and
7020-T6
Hydraulic Fluids 16 Aluminium Alloy 8 150 x 100 x 0.5
Resistance 5083 or 7020-T6
and Steel
Screening Test - 17 Aluminium Alloy 4 150 x 100 x 0.5
Resistance to Tri-n- 5083 or 7020-T6
Butyl Phosphate and Steel

A-1
Edition A Version 1