NZQA registered unit standard
29139 version 1
Page 1 of 2
Title
Describe the performance and properties of paint extenders
Level
4
Credits
4
Purpose
People credited with this unit standard are able to describe the
performance and properties of paint extenders.
Classification
Coatings, Inks, and Adhesives > Paint Manufacturing
Available grade
Achieved
Entry information
Unit 20288, Demonstrate knowledge of paint raw material
components, or demonstrate equivalent knowledge and skills.
Recommended skills
and knowledge
Explanatory notes
1
Definition
Extenders are extender pigments generally used as property modifiers.
2
For the purposes of this unit standard, descriptions of the performance and
properties of paint raw material components are general descriptions only, and
exclude details of the chemistry of the components and the associated chemical
reactions.
Outcomes and evidence requirements
Outcome 1
Describe the performance and properties of paint extenders.
Evidence requirements
1.1
The physical forms of paint extenders are identified and described.
Range
1.2
physical forms – spherical, nodular, acicular, platelet, fibrous,
particle size.
Common paint extenders are identified.
Range
Competenz
SSB Code 101571
common paint extenders – talc, barytes, calcite, silica, mica, clay.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.3
29139 version 1
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The physical forms of common paint extenders are related to the properties
imparted to paint.
common paint extenders – talc, barytes, calcite, silica, mica, clay;
evidence is required for two common paint extenders;
properties include – bulk, flow, filling, sanding, cost, hiding power,
gloss, hold-out, hazards.
Range
Replacement information
This unit standard, unit standard 29136, unit standard
29137, unit standard 29138, and unit standard 29140
replaced unit standard 20289.
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
15 October 2015
N/A
Consent and Moderation Requirements (CMR) reference
0134
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.
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 (CMRs). 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 Competenz on qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016