NZQA Expiring unit standard
25113 version 2
Page 1 of 3
Title
Describe filling and fairing technology used in boatbuilding
Level
3
Credits
4
Purpose
People credited with this unit standard are able to describe:
filling and fairing systems used on boats; extenders used in
boat filling and fairing systems; surface preparation
requirements for boat filling and fairing; and boat filling and
fairing techniques.
Classification
Boating Industries > Boatbuilding
Available grade
Achieved
Explanatory notes
Definitions
Extender – substance used to thicken or alter a base resin to into a paste form.
Fairing – process of making the form of a surface smooth.
Outcomes and evidence requirements
Outcome 1
Describe filling and fairing systems used on boats.
Evidence requirements
1.1
Pre-extended and boatyard extended systems are compared in terms of cost,
wastage, efficiency, and ease of use.
1.2
System advantages and disadvantages are described according to base
chemistry.
Range
1.3
polyester/vinylester, epoxy;
advantage and disadvantage factors include – water resistance,
compatibility, bonding strength, hardness, stability, shrinkage.
Pre-extended system types are identified in terms of application method, build
thickness, and purpose.
Range
trowel on, spray on high builds, roll on high builds.
Outcome 2
Describe extenders used in boat filling and fairing systems.
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
25113 version 2
Page 2 of 3
Evidence requirements
2.1
Extenders are described in terms of their advantages and disadvantages when
mixed into a filling or fairing compound.
Range
extenders may include – talc, silica, micro-balloons;
advantage and disadvantage factors include – shaping, sanding,
hardness, stability, mixing, cost, application.
Outcome 3
Describe surface preparation requirements for boat filling and fairing.
Evidence requirements
3.1
Surface preparation and cleaning requirements prior to application of filling or
fairing compound are described according to medium.
Range
3.2
steel, aluminium, composite, timber.
Surface preparation requirements are described in terms of identification and
marking out of highs and lows.
Outcome 4
Describe boat filling and fairing techniques.
Evidence requirements
4.1
Use of battens is described in terms of establishing fair surfaces.
Range
4.2
Use of shaping and smoothing tools is described in terms of establishing fair
and smooth surfaces.
Range
4.3
batten length and stiffness, batten selection according to surface
curvature, localised fairness, overall fairness, marking out.
includes planes, sanding boards, sanding machines.
The stages of filler application are described in terms of the progression of the
fairing process.
Range
initial fairing application, localised application.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
Replacement information
25113 version 2
Page 3 of 3
This unit standard, unit standard 25155, and unit
standard 25156 have been replaced by unit standard
29235.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
21 November 2008
31 December 2018
Review
2
15 October 2015
31 December 2018
Consent and Moderation Requirements (CMR) reference
0136
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 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.
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016