3021
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School
Coe College *
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Course
151
Subject
Chemistry
Date
Apr 3, 2024
Type
docx
Pages
31
Uploaded by LieutenantCheetahPerson619
1
Which Australian standard outlines the requirements for surface preparation prior to painting?
Verbally interviewed
The Australian standard AS/NZS 2311:2017 Guide to the painting of buildings is the recognised industry standard for the painting industry.
2
Before starting a job you must set up the work area. This includes set up of barricades and signage. What are 6 factors you should consider when using conducting this task.
Verbally interviewed
1
Make space. Remove as much of your furniture as you can
.....
2
Inspect your walls for damage. Start by inspecting your walls carefully.
3
If there is a damage repair it...
4
Sand
5
Clean your walls
....
6
Barrier tape only to be used across fire exits.
3
List 10 tools and/or equipment required to be used to carry out tasks for preparation
of surfaces for painting.
Verbally interviewed
1
Scraper
2
putty knife
3
Sandpaper
4
Sanding sponge
5
Painters tape
6
Drop clothes
7
Paint primer
8
brushes
9
Ladder
10
Rags
4
Tools and equipment should always be checked for serviceability and faults before
use, even if you used the same tool only a week ago.
Verbally interviewed
True
Fals
e
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Assessment Workbook CPCCPD3021 Prepare existing coated surface for painting V1
© ATAR Design. All rights reserved. No part of this work may be produced, published, communicated to the public or adapted without permission.
CPC30620 Certificate III in Painting and Decorating
Page 4 of 31
Type text here
5
Match each Dulux product to the appropriate work applications listed below
Verbally interviewed
Remove dirty, grease and grime
Removing wallpaper
Bare plasterboard/Gyprock
Bare set plaster
New timber
Covering dark or bright colours
Dulux product
Work application
Selleys Wallpaper Peel/Stripper
Removing wallpaper
Dulux Sealer Binder
bare set plaster
Dulux 1 Step Acrylic Primer Sealer Undercoat
New timber
Dulux 1 Step Primer Sealer Undercoat and Dulux Wash&Wear +Plus Super Hide
covering dark or bright colours
Dulux 1 Step Acrylic Primer Sealer Undercoat
Bare plasterboard/gyprock
Selleys Original Sugar Soap
Remove dirty, grease and grime
‘Small Spills’ Wear protective equipment to prevent skin and eye contamination. Wipe up with absorbent (clean rag or paper towels). Allow absorbent to dry before disposing with normal household garbage
‘Large spills’ slippery when spilt. Avoid accident, clean up immediately. Wear protective equipment to prevent skin and eye contamination and the inhalation of vapors. Work up wind or increase ventilation. Contain – prevent run off into drains and waterways. Use absorbent (soil, sand or other inert material). Collect and seal in properly labelled containers or drums for disposal. If contamination of sewers or waterways has occurred advise local emergency services
Disposal considerations: Persons conducting disposal, recycling or reclamation activities should ensure that appropriate personal protection equipment is used. If possible, material and its container should be recycled. If material or container cannot be recycled, dispose in accordance with local, regional, national and international regulations.
Manufacturing, packaging and transport: Wear overalls, chemical goggles and impervious gloves. Available information suggest that gloves made from nitrile rubber should be suitable for intermittent contact. However, due to variations in glove construction and local condition, the user should make a final assessment. Always wash hands before smoking, eating, drinking or using the toilet. Wash contaminated clothing and other protective equipment before storing or reusing. If risk of inhalation of exits, wear organic vapor/particulate respirator meeting the 6
Read the ‘Accidental release measures’ outline extracted from the ‘Selleys’ Safety Data Sheet
below, then list 5 environmental requirements identified in the procedure.
Verbally interviewed
1
Chemical, emergency control measures
2
identification
3
Hazards
4
composition
5
Safe handling practices
7
Outline 3 circumstances in which it is essential that a primer be used.
Verbally interviewed
1
New, Unpainted Surfaces: To promote adhesion and prevent paint absorption.
2
Stained or Discolored Surfaces: To block stains and achieve an even finish.
3
Repainting Glossy or Non-Porous Surfaces: To ensure new paint sticks and doesn't peel.
8
What products could be used to remedy cracks, holes, indentations and damaged surfaces? Give 4 examples.
Verbally interviewed
1
Spackling Compound: For small holes and cracks in walls.
2
Wood Filler or Epoxy: Repairs damaged or rotted wood.
3
Joint Compound (Mud): Used for drywall repairs and seams.
4
Auto Body Filler (Bondo): Ideal for deep dents and car body repairs.
9
Each of the above products should be applied in accordance with what?
Verbally interviewed
Prepare the Surface: Ensure the damaged area is clean and free of loose material. Apply the Product: Use the appropriate product to fill and repair the damage.
Shape and Smooth: Shape the repair to match the surrounding surface and smooth out any imperfections.
Allow to Dry or Cure: Follow the manufacturer's recommended drying or curing time. Sand and Finish: Sand the repaired area to achieve a smooth surface, then prime and paint or apply the necessary finish.
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1.10 Once the product has dried and set, what is the next step in preparing the surface?
Once the product has dried, the next step in surface preparation is to sand and smooth the repaired area. This step ensures a seamless finish and improves adhesion for primers and paint.
1.11 Before filling large gaps in plaster, what must you do, to assist with the adhesion of plaster filler?
Verbally interviewed
Before filling large gaps in plaster, apply a bonding agent or primer to enhance adhesion
of the plaster filler to the existing surface.
1.12 Provide 3 examples of circumstances in which paint should completely be removed from a
surface.
Verbally interviewed
1
Paint Type Change: Switching between oil-based and latex paints for compatibility
2
Mold or Mildew Infestation: To address and prevent mold or mildew issues.
3
Structural Restoration: Uncovering original details in historical restoration projects.
1.13
What type of check or test is used to determine the integrity of existing layers?
Verbally interviewed
To determine the integrity of existing paint layers, a "Cross-Cut Adhesion Test" is commonly used. It involves making cuts in the paint and assessing adhesion.
1.14
What preparation do surfaces that exhibit excessive chalking require?
Verbally interviewed
Cleaned thoroughly. Excess chalk removed.
Primed with a chalk-resistant primer. Painted with a suitable topcoat.
Maintained to prevent further chalking.
1.15 List 5 ways in which paint can be removed from a surface.
1
Scraping: Physically scrape off loose paint with a scraper.
2
Sanding: Sand the surface to remove paint layers.
3
Heat Stripping: Soften and remove paint using heat guns.
4
Chemical Strippers: Use paint-removing chemicals to dissolve and strip paint.
5
Abrasive Blasting: Utilize methods like sandblasting for larger or industrial surfaces.
1.16
Name the 3 classes of chemical stripping.
Verbally interviewed
1
Solvent-Based: Use organic solvents to dissolve paint.
2
Caustic-Based: Employ strong bases to break down paint.
3
Bio-Based: Use natural, eco-friendly materials to soften and remove paint.
1.17
How must holes or depressions in timber due to mechanical damage be prepared for painting?
Verbally interviewed
Clean: Remove loose dirt and debris from the damaged area.
Remove Loose Wood: Eliminate any splintered or loose wood around the damage. Fill: Use a suitable wood filler or epoxy to fill the hole or depression.
Smooth: Level the filler to be flush with the surrounding wood. Allow to Dry: Let the filler fully cure.
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1
Follow with a topcoat for color and additional protection.
2
Powder coating can be applied over galvanized steel for added protection and aesthetics.
3
Active protection-application of a primer containing a reactive chemical compound.
1.18 What is corrosion?
In the context of painting, corrosion refers to the process of metal surfaces deteriorating or corroding due to exposure to environmental factors, particularly when the protective paint coating on the metal is compromised or fails. Corrosion in painting can occur when
the painted surface is damaged, allowing moisture, oxygen, and other corrosive agents to come into contact with the underlying metal. It is a significant concern because it can lead to the degradation of the metal, compromising its structural integrity and aesthetics.
1.19 Outline 3 methods for protecting steel from corroding.
Verbally interviewed
1.20 What is the key requirement for effective steel surface preparation?
Apply a suitable primer to the prepared steel surface as soon as possible after cleaning and profiling. The primer acts as a barrier, preventing corrosion and promoting adhesion between the steel and the topcoat.
1.21 How can efflorescence and alkali salts be removed from a substrate?
Verbally interviewed
Begin by brushing or scraping off as much of the efflorescence and loose material as possible. Use a stiff-bristle brush or a putty knife to remove the white powder from
the surface.
1.22 Explain the remedial action required for superficial paint cracking.
Assess the Issue: Identify the extent and causes. Prepare the Surface: Clean and smooth the area. Apply Primer: Use a quality primer for adhesion. Repaint: Apply a suitable topcoat.
Proper Application: Follow manufacturer instructions.
Maintenance: Regularly inspect and touch up as needed.
1.23
Explain the remedial action required for extensive paint cracking that goes down to the substrate.
Verbally interviewed
Assess: Examine the extent and causes.
Remove Old Paint: Completely strip existing paint layers. Surface Repair: Address any substrate damage
1.24
What product should be used to seal a smoked damaged wall?
Verbally interviewed
To seal a smoke-damaged wall, use a specialized "smoke sealer" or "stain-blocking primer" before painting.
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1.25
You have been provided with the defects and causes outlining the condition and nature of the existing substrate and surfaces. Complete the ‘preventative measures’ and remedial methods to repair and remedy imperfections stopped, filled and sanded to smooth the finish ready for re- painting in accordance with manufacturer recommendations.
Verbally interviewed
Defects
Causes
Preventive measures
Remedial methods
Chalking
Use of non-weathering resistant paint
use weather resistant paint for areas explore to weather or UV
prepare surface and repaint with appropriate system
Peeling and flaking paint
Water seepage through roof, toilets etc
install proper waterproofing system before painting
arrest moisture source
prepare and treat the surface repaint on receiving surface with moisture content not exeeding 6%
Painting over insufficiently cured plaster/ concrete
paint on receiving surface with moisture content not exeeding 6%
Remove efflorescence, unstable matters and loose paint film
Repaint on receiving surface with moisture content not exeeding 6%
Defects
Causes
Preventive measures
Remedial methods
Incorrect paint
system
Failure to use primer/sealer
Failure to use etching primer for nonferrous metals
Use of poor alkali resisting primer/undercoats or insufficient penetrative
primer
prime/seal all bare surfaces with appropriate primer or sealer Remove all defective paint work and
prepare the surface
Repaint with appropriate system
Poor surface preparatio
n
Failure to remove unstable matter during surface preparation
Use of water-soluble putty/ poor adhering plaster
empoly adequate surface preparation to remove all unstable matter
surface must be clean,dry and stable before receiving paint defective and loose paint film, and unstable matter such as plaster etc
remove all
prime/seal the surface with appropriate primer/sealer to further stabilise the surface
re-coat with appropriate coating system
Blistering
Painting on a warm surface
Moisture migration through painted surface
paint on receiving surface with moisture content not exeeding 6%
remove defective paint and prepare surface accordingly to recieve paint
Repaint on recieving surface with moisture content not exeeding 6%
Defects
Causes
Preventive measures
Remedial methods
Staining
Use of details that traps and accumulates dirt.
Streak marks are formed
when dirt gets washed down along the sides of the painted vertical walls, especially on elastomeric coated wall.
avoid details and coating that trap and attract dirt
remove defective paint prepare surface accordingly to receive paint
apply with more dirt-resistant paint system
Rust stains
Corrosion of metal elements that are attached to, adjacent to or embedded in, another
substrate
Installation of metal elements that are not treated
protect and treat all metal parts from corrosion
remove metal parts and treat the metal surface
clean the walls and prepare the surface to receive painting
repaint with the apporatiate paint
Algae and fungi growth
Moisture source and retention
Employing of details that
assist growth of algae/fungi: Profile of substrates; rough- textured finishes or rough concrete surfaces
avoid details with very rough textures or
rough-cast plastered finishes
use a more algae resistant paint to delay
the onset of algae growth use capping and copings
employ overhanging roofs to protect the
walls
remove dirt and algae by high pressure water jetting treat infected areas with fungicidal wash
re-paint with a more algae resistant
paint
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1.26
Describe in detail the disposal process for small and large amounts of paint residue.
Verbally interviewed
it may also be disposed of in normal household waste when paint is completely drained from empty containers or brushes and roller blades,as well as the contained solvents are evaporated.you may also allow it to remain open, preferably out of the way,so as to make
sure that everything's entirely dry. The larger volumes of paint,for instance buckets that do not
easily dry off, are not part of normal household waste. The appropriate collection facilities can be used to dispose of it properly.
1.27
Describe the clean-up, disposal and storage process for Dulux 1 Step Oil Based Primer Sealer
Undercoat’. The product SDS and TDS have been provided as supplementary documents
Verbally interviewed
Disposal considerations
individuals carrying out disposal, recycling or rehabilitation activities should ensure that they use appropriate protective equipment as set out in section 8.this SDS has exploure controls and personal protection. It is necessary to recycle the material and its container
if possible.
Material storage
store outdoors in a cool,dry and wellventilated place from direct sunlight.store awat from foodstuffs. Remove from storage incompatible materials reffered to in section 10, do not store in a place where there is heat or ignition.when not in use,keep the containers closed and regularly check for leaks. this substance shall be considered as dangerous goods class 3 flammable liquid in accordance with the criteria set out in the AGS code,and shall be stored within the
limits of those regulations. This material is a scheduled poison s5 and must be stored,maintained and used in accordance with the relevant regulations.
Clean up
For clean-up use mineral turps
1.28
Document the procedure for treating surfaces that have been affected by mould, prior to painting.
Verbally interviewed
Wash the entire surface with detergent to remove any grease or dirt.
wash or sponge the entire surface with a freshly diluted solution of sodium hypochlorite household bleach with a final hypochlorite concentration of 1% to 2%. washing-down cloths or sponges shoud be regularly washed with clean water to prevent recontamination and the spread of mould spores.
allow bleach to remain moist until the stain is decolourised,typically 15 to 30min reapplication may be required for dry conditions or persistent .
Rinse the surface with copious quantities of clean water, where one application of bleach fails to remove the mould, a repeat application may be necessary.
severely infested surfaces should be treated with anti-mould solution as directed by the manufacturer.
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1.29
Discuss the hazards associated with lead in paint.
Verbally interviewed
Lead is a heavy metal poison. paint dust, paint flakes and paint waste containing lead may penetrate into the body by inhalation. A serious health risk is posed by exposure to even even small amounts.
1.30
What items of PPE can be worn to protect workers from silica dust? Give 2 examples.
Verbally interviewed
1
Respirators
2
Goggles
3
Coveralls
Assessment Workbook CPCCPD3021 Prepare existing coated surface for painting V1
© ATAR Design. All rights reserved. No part of this work may be produced, published, communicated to the public or adapted without permission.
CPC30620 Certificate III in Painting and Decorating
Page 21 of
31
Part 1: Job Safety Analysis
Site location
83 boundary road north melbourne
Date
23-10-2023
Description of activity
Painting
Activity
List the tasks required to perform the activity in the sequence they are carried out.
Hazards
Against each task, list the hazards that could cause injury when the task is performed.
Inherent risk score
Risk control measures
List the control measures required to minimise
the risk of injury arising from the identified hazard.
Residual risk score
Moving painting and decorating materials
around the work site
manual handling injuries
h
use correct bending and lifting techniques
use manual handling aids
Store materials as close as practicable to the work area
L
mixing and apply paints
manual handling injuries
h
Do not overreach maintain good posture Take regular breaks
L
use of caulking and patching products
Exposure to hazardous
chemical through direct
contact and inhalation
h
Refer to SDS before use Use PPE as per SDS
Use with adequate ventilation
L
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Assessment Workbook CPCCPD3021 Prepare existing coated surface for painting V1
© ATAR Design. All rights reserved. No part of this work may be produced, published, communicated to the public or adapted without permission.
CPC30620 Certificate III in Painting and Decorating
Page 22 of
31
Activity
List the tasks required to perform the activity in the sequence they are
carried out.
Hazards
Against each task, list the hazards that could cause injury when the task is performed.
Inherent risk score
Risk control measures
List the control measures required to minimise
the risk of injury arising from the identified hazard.
Residual risk score
Exposure to hazardous chemical through inhalation, ingestion and splashing in eyes
h
Refere to SDS before use Use with adequate ventilation
l
Slips ,trips and falls
h
Clean up spills as soon as they occur Wear non-slip footwear
l
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Assessment Workbook CPCCPD3021 Prepare existing coated surface for painting V1
© ATAR Design. All rights reserved. No part of this work may be produced, published, communicated to the public or adapted without permission.
CPC30620 Certificate III in Painting and Decorating
Page 23 of
31
Activity
List the tasks required to perform the activity in the sequence they are
carried out.
Hazards
Against each task, list the hazards that could cause injury when the task is performed.
Inherent risk score
Risk control measures
List the control measures required to minimise
the risk of injury arising from the identified hazard.
Residual
risk score
Learner name
Learner
signature
Assessor name
Assessor
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Part 1: Preparation of surfaces manual
Procedure: How to prepare coated for painting a coated external timber fence
1.
prepare your surroundings. first things first, you want to remove and protect anything on or surrounding your fence. ......
2.
clean and repair your fence . ....
3.
sand your fence. ....
4.
apply your first layer of primer. ....
5.
apply the first coat of paint. ....
6.
determine if you need a seconf coat. ....
7.
remove ploastic sheets. ....
8.
clean your tools. ....
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Procedure: How to prepare a coated surface internal wall for painting
glossy surfaces may need to be sanded to a dull finish with a medium grit sandpaper. there's no need to sand back to bare
timber ,just enough to rough-up the surface so the next coat of paint will have something to grab onto. Be sure to remove dust generated after sanding.
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Procedure:
How
to
prepare
a
coated
metal
surface
for
painting
1. Clean the surface. the properly prepare new metal surfaces, use mineral
spirits to remove grease and apply a rust-inhibitive primer before painting.
2. Remove loose and peeling paint. If the old paint is in poor condition.
you can remove it by hand wire brusshing,sanding, or scraping.
3.
Remove rust. When preparing metal for paint,checking for rust is important to make sure that the paint will adhere properly to the surface.
4. Remove small holes and dents. To repair holes and dents,sand the area
until you reach bare metal and wipe with a degreaser mixed with mineral spirits.
5. Primer the surface. primer is a very important step in preparing metal for paint,especially if the surface will be exposed to moisture.
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Procedure: How to prepare a coated masonry surface for painting
1.
Give it a good clean. You need to make sure the surface and area you
are working in is clean.
2.
Repair Damage. This is an important step, No amount of paint will cover
up a large crack or hole.
3.
Cover the external features.Any drainpipes, windowsills or doors will need
to be covered before any further work is done.
4.
Seal and prime. For porous or powdery surfaces, you will need to seal and
prime the wall before applying paint. This is done with an external primer or sealer. Simply follow the guidelines on on the container to apply.
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Procedure: A basic guide to field paint testing
Chalking check
Rub the surface of paint with a finger or a dark coloured cloth to determine the degree of chalking. Dampen the chalking area or scrub with a detergent based wash and cloth, sponge or broom.
Contaminant clean
Contaminants sit on the surface of the substrate and can include:
Dirt Dust Salt Oil
Grease
Cleaning products such as sugar soap are highly alkaline and residue left on the surface will affect adhesion of the new coating.
Previous paint / metho test
Get a clean rag and put some method on the edge of the rag. Rub it against a section of the paint. If the paint vcomes off,
it is water-based paint.
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Procedure: A basic guide to field paint testing
Lead testing
The most common type uses a sodium sulfide or sodium rhodizonate solution applied to a notched surface or paint chip. Another type of lead test kit uses a swab that you rub onto a painted surfaces.
If the solution or swab change colors,it indicates that lead is present.
Cross-hatch adhesion test
This basic and very subjective test method involves the user cutting an 'X' through the coating,down to the substrate,using a sharp utility knife. The blade of the knife is then used to determine how easily the coating lifts off the substrate at the intersection point of the cut.
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The diffusion constant for the amino acid glycine in water is 1.06 × 10⁹ m²/s. In a 2.0-cm-long tube with a cross-sectional area of 1.8 x
10-4 m², the mass rate of diffusion is m/t = 4.2 x 10-14 kg/s, because the glycine concentration is maintained at a value of 8.7 x 10-³
kg/m³ at one end of the tube and at a lower value at the other end. What is the lower concentration?
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10. The diffusion rate for a solute is 4.0 x 10-1" kg/s in a solvent-
filled channel that has a cross-sectional area of 0.50 cm² and a length of
0.25 cm. What would be the diffusion rate m/t in a channel with a cross-
sectional area of 0.30 cm² and a length of 0.10 cm?
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Could you please explain this question?
Identify a country that is suitable for a large-scale manufacturing, and briefly explain it from two cultural perspectives; power distance and uncertainty avoidance.
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None
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23. Based on your understanding of the relationships between the structures and physical properties of
elements and compounds, which of the substances (Table 1) is most likely an ionic compound? Why?
Explain your reasoning in at least two (2) sentences.
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