NZQA registered unit standard
17539 version 4
Page 1 of 5
Title
Describe and apply wet protective coatings
Level
4
Credits
25
Purpose
People credited with this unit standard are able to: describe
and compare wet protective coatings and methods; calculate
mixing ratios and application quantities for wet protective
coatings; prepare and mix multiple component wet protective
coatings; apply wet protective coatings to a range of surfaces;
and maintain, clean, and store wet protective coating
equipment.
Classification
Industrial Coatings > Protective Coatings
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 17547, Demonstrate knowledge of health and safety for
blaster coating operations, or demonstrate equivalent
knowledge and skills.
Explanatory notes
1
Documents relevant to this unit standard include:
AS/NZS 2312: 2002: Guide to the protection of structural steel against atmospheric
corrosion by the use of protective coatings;
Safety Data Sheets;
Product data sheets and labels.
2
When applying coatings containing isocyanate, an air-fed respirator must be worn in
accordance with Approved Code of Practice for the Safe Use of Isocyanates
(Wellington: Occupational Safety and Health Service, Department of Labour, 1994).
3
Definitions
Company procedures refer to documented methods for performing work activities
and include health and safety, environmental, and quality management requirements.
They may refer to manuals, codes of practice, manufacturer’s instructions, or policy
statements.
Job specifications may include written and oral direction for specific tasks, standard
procedures documented in company quality manuals, and technical procedures for
specific materials or equipment.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17539 version 4
Page 2 of 5
Outcomes and evidence requirements
Outcome 1
Describe and compare wet protective coatings and methods.
Evidence requirements
1.1
Wet protective coatings are described in terms of their properties and
characteristics.
Range
1.2
Methods of application of wet protective coatings are identified and described in
terms of coating type.
Range
1.3
epoxy, urethane, two-pack acrylic, zinc and zinc silicate, alkyd,
vinyl, chlorinated rubber.
Wet protective coatings are compared in terms of relative costs and service life.
Range
1.4
epoxy, urethane, two-pack acrylic, zinc and zinc silicate, alkyd,
vinyl, chlorinated rubber.
epoxy, urethane, two-pack acrylic, zinc and zinc silicate, alkyd,
vinyl, chlorinated rubber.
The compatibility and incompatibility of wet protective coatings with different
substrates is determined and explained; and surface preparation requirements
for compatible coatings are described in accordance with coating
manufacturer’s instructions.
Range
three compatible coatings, three incompatible coatings;
substrates may include – steel, stainless steel, galvanised,
aluminium, concrete, metal spray.
Outcome 2
Calculate mixing ratios and application quantities for wet protective coatings.
Evidence requirements
2.1
Surface areas are calculated from given physical dimensions of flat and curved
surfaces.
2.2
The quantity of wet protective coating required for a given job is estimated in
accordance with job specifications and the product data sheet.
2.3
Quantities of product are calculated from given mixing or thinning ratios in
accordance with manufacturer’s instructions.
2.4
Coating quantities are calculated from given coating application rates to achieve
prescribed thickness in accordance with job specifications.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17539 version 4
Page 3 of 5
Outcome 3
Prepare and mix multiple component wet protective coatings.
Range
mix for three different application methods.
Evidence requirements
3.1
Personal protective clothing for mixing wet protective coatings is fitted and worn
in accordance with company procedures.
3.2
Pre-treatment processes for wet protective coatings are carried out in sequence
in accordance with product data sheet and job specifications.
3.3
Mixing procedures for wet protective coatings are described in accordance with
instructions on product data sheet and product label.
3.4
Wet protective coating containers are opened in accordance with company
procedures, Safety Data Sheet, and product data sheet.
3.5
Wet protective coatings are mixed and/or thinned in accordance with
manufacturer’s instructions.
3.6
Wet protective coating is prepared for application in accordance with
manufacturer’s instructions.
Outcome 4
Apply wet protective coatings to a range of surfaces.
Range
surfaces may include but are not limited to – concrete, timber, carbon steel,
zinc, galvanised surfaces, aluminium, stainless steel, plastics;
a minimum of three types of surfaces are to be coated and each coating method
relevant to that coating is to be demonstrated.
Evidence requirements
4.1
Job specifications, including products and equipment to be used, are confirmed
in accordance with company procedures.
4.2
Personal protective clothing and equipment for applying wet protective coatings
are fitted and worn in accordance with manufacturer’s instructions and company
procedures.
4.3
Spray equipment, air service units, hoses, spray gun, and nozzle are set up and
wet protective coating is applied in accordance with job specifications and
company procedures.
Range
methods may include but are not limited to – airless, high volume
low pressure, pressure pot, conventional spray.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17539 version 4
Page 4 of 5
4.4
Damaged or flawed wet protective coating is touched up to meet job
specifications.
4.5
Drying and/or curing times for wet protective coatings are adhered to in
accordance with product data sheet and conditions.
times – job specified, taking account of atmospheric conditions.
Range
4.6
Wet protective coating meets quality requirements for surface finish,
measurement of coating thickness, and colour conformity in accordance with
job specifications.
Outcome 5
Maintain, clean, and store wet protective coating equipment.
Evidence requirements
5.1
Wet protective coating equipment is checked for maintenance and is repaired
and/or reported for repair in accordance with company procedures.
5.2
Wet protective coating equipment is cleaned, shut down, and stored in
accordance with manufacturer’s instructions and company procedures.
equipment includes but is not limited to – brushes, rollers, spray
equipment.
Range
Planned review date
31 December 2019
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
28 August 2000
31 December 2012
Review
2
20 November 2006
31 December 2013
Review
3
18 October 2012
31 December 2016
Review
4
16 April 2015
N/A
Consent and Moderation Requirements (CMR) reference
0114
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17539 version 4
Page 5 of 5
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016