NACE SP21416-2020

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NACE SP21416-2020

Item No. SP21416-2020

Approved: 2020-10-13

Application Process for Optimum Paint

and Coating Systems’ Performance

for Navy Ships

This NACE International standard represents a consensus of those individual mem-

bers who have reviewed this document, its scope, and provisions. Its acceptance

does not in any respect preclude anyone, whether he or she has adopted the stan-

dard or not, from manufacturing, marketing, purchasing, or using products, pro-

cesses, or procedures not in conformance with this standard. Nothing contained in

this NACE standard is to be construed as granting any right, by implication or other-

wise, to manufacture, sell, or use in connection with any method, apparatus, or prod-

uct covered by letters patent, or as indemnifying or protecting anyone against liability

for infringement of letters patent. This standard represents minimum requirements

and should in no way be interpreted as a restriction on the use of better procedures

or materials. Neither is this standard intended to apply in all cases relating to the

subject. Unpredictable circumstances may negate the usefulness of this standard in

specic instances. NACE assumes no responsibility for the interpretation or use of

this standard by other parties and accepts responsibility for only those ofcial NACE

interpretations issued by NACE in accordance with its governing procedures and

policies which preclude the issuance of interpretations by individual volunteers.

Users of this NACE standard are responsible for reviewing appropriate health, safety,

environmental, and regulatory documents and for determining their applicability in

relation to this standard prior to its use. This NACE standard may not necessarily

address all potential health and safety problems or environmental hazards associ-

ated with the use of materials, equipment, and/or operations detailed or referred to

within this standard. Users of this NACE standard are also responsible for establish-

ing appropriate health, safety, and environmental protection practices, in consulta-

tion with appropriate regulatory authorities if necessary, to achieve compliance with

any existing applicable regulatory requirements prior to the use of this standard.

CAUTIONARY NOTICE: NACE standards are subject to periodic review, and may

be revised or withdrawn at any time in accordance with NACE technical committee

procedures. NACE requires that action be taken to reafrm, revise, or withdraw this

standard no later than ve years from the date of initial publication and subsequently

from the date of each reafrmation or revision. The user is cautioned to obtain the

latest edition. Purchasers of NACE reports may receive current information on all

NACE publications by contacting the NACE FirstService Department, 15835 Park

Ten Place, Houston, TX 77084-5145 (tel: +1 281-228-6200, email: rstservice@

nace.org).

ABSTRACT

This NACE/EFC standard is considered

as the basis for the cleaning, surface

preparation, and application of paint and

coating systems to Navy ships used in

marine environments for New Build, and

during Life Cycle maintenance and per-

manent repair. It is intended for use by

naval corrosion control personnel, coat-

ing applicators, and coating manufactur-

ers. It covers coating materials, coating

test protocol and acceptance criteria, sur-

face preparation, coating application,

quality assurance and control, and repair

methods. Its purpose is to facilitate more

effective corrosion protection of Navy

ships and support inter-operability re-

quirements by presenting reliable infor-

mation and providing guidelines for coat-

ing manufacturers and shipyards to

develop more durable specications.

This standard replaces NATO Allied Engi-

neering Publication (AEP) 59.

KEYWORDS

NATO, AEP, surface preparation, coating

application, quality assurance, quality

control

republication or redistribution of this standard in any form without the express written permission of the publisher is

prohibited. Contact NACE International by means of our website www.nace.org, email FirstService@nace.org, or

(phone) +1 281-228-6223 for reprints of this standard.

Reproduction, republication or redistribution of this standard in any form without the express written per-

mission of the publisher is prohibited. Contact NACE International by means of our website www.nace.org,

email FirstService@nace.org, or (phone) +1 281-228-6223 for reprints of this standard.

Foreword

In the late nineties, the North Atlantic Treaty Organization (NATO)(1) navies were considering approaches to improve the durabil-

ity and maintainability of major assets. The importance of surface preparation, application processes and qualied coatings was

clear. There was also a conuence of enhanced operational capabilities (health, safety, security, etc.), environmental regulation

compliance and increasing cost during ship life cycle (acquisition and maintenance). It was resolved that there was a need for

internationally recognized performance standards and interest in standard documents such as NATO Allied Engineering Publi-

cations (AEP) to suit the unique requirements of military ships.

Navy ships represent large capital investments and are present worldwide. Moreover, control of corrosion on Navy ships is nec-

essary to sustain operational availability and inter-operability, provide safe working and living areas, and limit total ownership

cost during a ship’s life cycle.

NATO established a working group comprised of experts from eleven countries to create international performance standards.

Through contacts with various navies, shared objectives were established; in particular:

• Increasing the length of time between dry-dockings (up to 10 years),

• Reduction of maintenance, including reducing crew labor.

The working group used the period from 2002-2008 to complete four AEPs. In 2010, participating NATO member nations ac-

cepted the AEPs via an overarching Standardization Agreement (STANAG 4698).1 The four AEPs developed under STANAG

4698 are:

• AEP 59: Application process for optimum paint and coatings system’s performance

• AEP 60: Performance requirements for exterior topsides coatings

• AEP 61: Performance requirements for underwater hull paint systems

• AEP 63: Performance requirements for non-skid coating systems

In 2012, it was realized that the community of experts within NATO had diminished and this limited NATO’s ability to manage and

update the AEPs. A plan was developed to transfer the documents to a Joint NATO/NACE International (NACE)/European Fed-

eration of Corrosion (EFC)(2) working party. Under this plan, NATO maintains control of the STANAG and oversees the mainte-

nance of the AEPs by the NACE/EFC working party.

This NACE/EFC standard is intended for use by naval corrosion control personnel, coating applicators, and coating manufactur-

ers. It covers coating materials, coating test protocol and acceptance criteria, surface preparation, coating application, quality

assurance and control, and repair methods. Its purpose is to facilitate more effective corrosion protection of Navy ships and

support inter-operability requirements by presenting reliable information and providing guidelines for coating manufacturers and

shipyards to develop more durable specications.

Higher durability coatings provide the corrosion protection and durability required to meet these goals; however, proper applica-

tion of the coatings is critical to achieve the maximum life expectancy of these coating products.

The aim of this standard is to establish acceptance of paint and coating application processes and quality control procedures

that have been demonstrated to optimize product/system performance. This standard establishes baseline requirements of best

industrial practices for paints and coatings.

This standard was prepared in 2020 by the joint working party of NACE, EFC, and NATO representatives and referred to by

NATO under STANAG 4698.

This standard replaces AEP 59.

In NACE standards, the terms shall, must, should, and may are used in accordance with the denitions of these terms in

the NACE Publications Style Manual. The terms shall and must are used to state a requirement, and are considered

mandatory. The term should is used to state something good and is recommended, but is not considered mandatory. The

term may is used to state something considered optional.

(1) North Atlantic Treaty Organization (NATO), Boulevard Leopold III, Brussels, Belgium.

(2) European Federation of Corrosion (EFC), 1 Carlton House Terrace, London SW1Y 5DB, U.K.

NACE International SP21416-2020 3

Reproduction, republication or redistribution of this standard in any form without the express written permis-

sion of the publisher is prohibited. Contact NACE International by means of our website www.nace.org, email

FirstService@nace.org, or (phone) +1 281-228-6223 for reprints of this standard.

NACE International Standard (SP21416-2020)

Application Process for Optimum Paint

and Coating Systems’ Performance

for Navy Ships

1. General .............................................................................................................................................................................. 4

2. Scope ................................................................................................................................................................................. 4

3. Denitions .......................................................................................................................................................................... 4

4. Safety ................................................................................................................................................................................. 4

5. Personnel Requirements.................................................................................................................................................... 5

6. Reference Areas ................................................................................................................................................................ 6

7. Record Keeping ................................................................................................................................................................. 7

8. Temporary Services ........................................................................................................................................................... 7

9. Data Collection and Retention ........................................................................................................................................... 7

10. Localized Environmental Conditions .................................................................................................................................. 7

11. Contamination Containment and Masking ......................................................................................................................... 8

12. Isolation, Blanking and Tagging Requirements .................................................................................................................. 9

13. Pre-Surface Preparation .................................................................................................................................................. 10

14. Surface Preparation ......................................................................................................................................................... 10

15. Painting Requirements ..................................................................................................................................................... 12

16. Prime Coat Application ..................................................................................................................................................... 14

17. Stripe Coat Application (When Required by DOR)........................................................................................................... 15

18. Intermediate Coat Application (When Applicable) ............................................................................................................ 15

19. Second Stripe Coat Application (When Required by DOR) ............................................................................................. 16

20. Topcoat Application .......................................................................................................................................................... 16

21. Final Inspection ................................................................................................................................................................ 17

References ....................................................................................................................................................................... 17

Annex A: Inspection Form—Environmental Readings in Accordance with ISO 8502-4 (Mandatory) .............................. 19

Annex B: Surface Salt Conductivity Readings in Accordance with ISO 8502, Parts 6 and 9 (Mandatory) ...................... 20

Annex C: Inspection Form—Surface Prole Measurements in Accordance with ISO 8503 (Mandatory) ........................ 21

Annex D: Inspection Form—Dry Film Thickness Measurements in Accordance with ISO 2178, 2360, or 19840

(Mandatory) ...................................................................................................................................................................... 22

Annex E: Inspection Log—Checkpoint Acceptance Sign-Off (Mandatory) ...................................................................... 23

Annex F: Inspection Log—Paint Application Equipment and Paint Consumption (Mandatory) ....................................... 25

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摘要：

NACE SP21416-2020 是由国际腐蚀控制权威组织NACE（现为AMPP）发布的一项专业标准规范，主要针对石油、天然气及海洋工程领域中金属结构的阴极保护系统设计、安装与维护提供技术指导。该标准涵盖了基于电流分布与电位监测的阴极保护性能评估方法，适用于埋地管道、储罐、海上平台等关键设施的腐蚀防护。通过遵循该规范，工程人员可有效降低因电化学腐蚀导致的结构失效风险，延长设备使用寿命，并确保运营安全与合规性。文档中详细规定了测试程序、数据记录要求及故障排查流程，是腐蚀工程师、质检人员及项目管理

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