23935 version 1
Page 1 of 3
Demonstrate knowledge of glass reinforced plastic (GRP) and its repair
methods for trailer boat hulls
Level
3
Credits
2
Purpose
This theory-based unit standard is for people in the marine repair industry.
People credited with this unit standard are able to demonstrate knowledge of
GRP and its repair methods for trailer boat hulls.
Subfield
Motor Industry
Domain
Trailer Boat Systems
Status
Registered
Status date
21 September 2007
Date version published
21 September 2007
Planned review date
31 December 2012
Entry information
Open.
Replacement information
This unit standard and unit standard 23936 replaced unit
standard 15452.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation relevant to this unit standard includes but is not limited to – Hazardous
Substances and New Organisms Act 1996, Health and Safety in Employment Act
1992.
2
Definition
Gelcoat is a material used to provide a high quality finish on the visible surface of the
GRP material. The gelcoat is typically 0.5-0.8mm in thickness.
 New Zealand Qualifications Authority 2016
23935 version 1
Page 2 of 3
Elements and performance criteria
Element 1
Demonstrate knowledge of GRP and its repair methods for trailer boat hulls.
Performance criteria
1.1
Reasons for osmosis and blistering of the gelcoat are described in accordance
with boat maintenance manual descriptions.
Range
1.2
Causes of delamination are determined in accordance with boat maintenance
manual descriptions.
Range
1.3
includes but is not limited to – stress, impact, scratching,
abrasions.
Limits and methods of repair to cosmetic damage are described in accordance
with hull manufacturer specifications and legislative requirements.
Range
1.5
includes but is not limited to – stress, overloading, improper lay up,
water saturation.
Types of gelcoat damage are recognised in accordance with boat maintenance
manual descriptions.
Range
1.4
includes but is not limited to – poor moulding procedures and
incomplete curing, continuous immersion in water, chemical
reaction, damage.
cosmetic damage – light abrasions, scratches and cracks that
have not extended down into the fibreglass laminate.
Gelcoat maintenance requirements are described in accordance with boat
maintenance manual descriptions.
Range
includes but is not limited to – boat out of direct sunlight when not
in use, waxing, washing down the boat with fresh water after use,
adhering to boat manufacturer recommendations.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
 New Zealand Qualifications Authority 2016
23935 version 1
Page 3 of 3
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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)
janet.lane@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016