- PMBPROD242A - Bond polymers to surfaces
Assessor Resource
PMBPROD242A
Bond polymers to surfaces
Assessment tool
Version 1.0
Issue Date: June 2024
Application of this unit
This competency applies to operators who are required to join polymers to another surface. It is typically performed by operators working either independently or as part of a work team. The operator will:
check the surface of products to be joined for suitability or contamination
check materials for conformity to job requirements
apply the joining material(s)
notice any problems and take required actions
deal with non-conforming products, waste and scrap
complete logs and reports.
They may record key variables such as work conditions and production rate and reasons for interruptions.
This unit does not include:
significant surface preparation - see PMBPROD248C Prepare surfaces for coating
heat curing of bonded material - see PMBPROD265 Operate portable vulcanisingequipment, PMBPROD375B Vulcanise products using an autoclave.
This competency covers the joining of a solid polymer to another solid surface using adhesives, cohesives, solvents or other joining materials. The polymer may be thermoplastic or cured or uncured thermoset.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Prerequisites
This unit has no prerequisites.
Employability Skills
This unit contains employability skills.
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, required skills and knowledge, the Range Statement and the Assessment Guidelines for this Training Package.
Overview of assessment
A holistic approach should be taken to the assessment.
Assessors must be satisfied that the person can consistently perform the unit as a whole, as defined by the Elements, Performance Criteria and skills and knowledge.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that competence is demonstrated in the knowledge and skills defined in this unit. These may include the ability to:
apply the required skills and knowledge to complete adhesive bonding jobs
apply approved procedures.
Consistent performance should be demonstrated. For example, look to see that:
joining production standards are met consistently
all safety procedures are followed.
Assessment method and context
Assessment will occur using industrial bonding situations and will be undertaken in a work-like environment.
Competence in this unit may be assessed:
by using appropriate joining materials, situations and tools
in a situation allowing for the generation of evidence of the ability to respond to problems
by using a suitable simulation and/or a range of case studies/scenarios
through a combination of these techniques.
In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practical/simulation or similar assessment. Assessors need to be aware of any cultural issues that may affect responses to questions.
Assessment processes and techniques must be culturally appropriate and appropriate to the oracy, language and literacy capacity of the assessee and the work being performed.
Specific resources for assessment
This section should be read in conjunction with the Range Statement for this unit of competency. Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation. A bank of case studies/scenarios and questions will also be required to the extent that they form part of the assessment method. Questioning may take place either in the workplace, or in an adjacent, quiet facility such as an office or lunchroom. No other special resources are required.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
This describes the essential skills and knowledge and their level required for this unit.
Application of knowledge of the materials, equipment and process sufficient to recognise out of specification products, process problems and materials faults.
Knowledge of organisation procedures, quality requirements and relevant regulatory requirements along with the ability to implement them within appropriate time constraints and work standards.
Application of the knowledge of managing risk using the hierarchy of controls applied to the coating process. Application of approved hazard control and safety procedures and the use of PPE in relation to handling materials, equipment operation and cleanup.
Knowledge and skills in the operation of the joining process and equipment sufficient for consistent production of quality products, including:
correct selection and use of equipment or tool/s, materials, processes and procedures
accurately monitoringequipment operation and product quality
reasons for checking conditions and taking action when outside of the normal range of process variability
identifying factors which may affect product quality or production output and appropriate remedies
potential effectsof variations in materials and equipment operation in relation to quality of product
joining behaviour of polymers to relevant substrates and the role of adhesives,cohesives, solvents and other materials
waste management and knowing the importance of reusing non-conforming products wherever possible
basic pre-blending of materials
methods of application of joining materials
required surface preparations and their importance to joining
types of adhesives, cohesives, solvents and their differences, uses, where they may or may not be used and range of application
critical factors for different types of joining processes such as gap filling, aesthetics, structural strength etc.
Competence also includes the ability to:
plan production workflow sequences and materials demand
plan own work. including predicting consequences and identifying improvements
identify when the operator is able to rectify faults, when assistance is required and who is the appropriate source for assistance
identify and describe own role and role of others involved directly in the coating process.
Language, literacy and numeracy requirements
This unit requires the ability to read and interpret typical product specifications, job sheets, procedures, material labels and safety information as provided to operators.
Writing is required to the level of completing workplace forms.
Basic numeracy is required, eg to determine the amounts of materials needing to be blended for a 2 pot adhesive.
The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.
Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.
Context
This competency applies to all joining operations where a solid polymer is joined to another substrate. It includes the operation of all relevant additional equipment where that equipment is integral to the joining process.
Procedures
All operations are performed in accordance with procedures.
Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.
Substrate suitability
Substrate suitability includes:
surface soundness
surface preparation such as grit blasting, etching, sanding, buffing, scraping, machining or other preparations
substrate porosity
surface pits, protrusions or other irregularities.
Joining materials
Joining materials include:
adhesives (such as commercially available materials 'Loctite, Sikaflex, Plexus)
cohesives
solvents (such as aliphatics, ketones, aromatics)
other materials (such as glues, fillers)
Joining material preparation
Joining material preparation includes:
mixing one pot materials to achieve homogeneity
blending two (or more) pot material components
thinning (eg with solvent) if required
measuring components for blends.
Joining material application
Joining material application to include:
correct application rate
even application
economical application
correct application method.
Contact between surfaces
Contact between surfaces may be effected by:
use of hand rollers
use of presses
may be achieved as part of the curing process where this is done under pressure
other relevant equipment.
Tools and equipment
This competency includes use of equipment and tools such as:
application equipment (eg brushes, syringes, pipettes, spray guns, application scrapers)
additional equipment (eg vapour extraction, application booths)
manual handling aids (eg hand carts, trolleys)
hoists/lifting equipment not requiring any special permits or licences
relevant personal protective equipment.
Hazards
Typical hazards include:
spills and splashes
toxic fumes or vapours
hazardous materials
manual handling hazards
flammable vapours.
Problems
'Respond to routine problems' means apply known solutions to a limited range of predictable problems. Typical process and product problems may include:
incorrect selection of joining materials
variations in materials
contamination of joining materials or substrates
inappropriate application of materials
dust and other contamination
drying rates
film thickness variation
film application rates
coverage
tack (too much, not enough, long leg/short leg)
products with substrate or other faults.
Appropriate action for non-routine problems may be reporting to designated person or other action specified in the procedures.
Variables
Key variables to be monitored include:
application patterns
adhesive consistency
substrate preparation, condition and finish
adhesive viscosity
solvent/thinner blend ratios.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice | Yes | No | Comments/feedback |
---|---|---|---|
Identify work requirements from production plan or request. | |||
Select and check appropriate equipment or tool/s, techniques and materials to be used. | |||
Recognise requirements which may not be in accordance with usual practice. | |||
Ask questions of appropriate person to confirm unusual practice. | |||
Ensure housekeeping is to requirements. | |||
Identify hazards associated with the job and take appropriate action. | |||
Perform other pre-operational checks to procedures | |||
Check substrate for suitability. | |||
Clean/activate substrates to procedures as required. | |||
Prepare joining materials. | |||
Apply joining materials to substrate(s) as required. | |||
Monitor drying/setting as appropriate | |||
Apply subsequent material/coats as required. | |||
Complete logs and records as required. | |||
Keep equipment and work area clean. | |||
Set up required jigs and equipment for joining. | |||
Bring surfaces together when appropriate. | |||
Ensure intimate and continuous contact between surfaces. | |||
Apply required conditions to join until joining process is complete. | |||
Recognise known faults that occur during the operation. | |||
Identify and take action on causes of routine faults. | |||
Log problems as required. | |||
Identify non-routine problems and report to designated person. |
Forms
Assessment Cover Sheet
PMBPROD242A - Bond polymers to surfaces
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
PMBPROD242A - Bond polymers to surfaces
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent
Assessor name:
Signature:
Date:
Student signature:
Date: