Contents
Introduction to Test Methodology
- Principles of testing & Correlation
- Quality Control & Specification
- Accuracy & Precision
- Repeatability & Reproducibility
Properties of Liquid Coatings
Rheology
- Definitions and Units
- Types of Rheological behaviour
- Shear thinning, thixotropy, extensional flow etc.
- Factors influencing Viscosity
- Measurement Techniques
- Overview of Instruments
Surface Tension & Flow
- Wetting & Contact Angles
- Surface & Interfacial Tension
- Dynamic surface tension
- Surface tension Gradients
- Control of spreading and flow
- Film Defects
- Bénard Cells, Craters, Floating, Flooding, Orange Peel etc.
- Measurement of Surface tension
- Characterisation Tests
- Practical Work
Properties of Dry Films
- Mechanical Properties
- Modulus of Elasticity
- Tensile Strength
- Extensibility
- Impact Strength & Abrasion Resistance
- Scratch Resistance
- Adhesion & Adhesive Performance
- Destructive and non-destructive test methods
- Resistance testing
- Durability & Accelerated Weathering
- Corrosion Resistance Testing
- Water Permeability
- Appearance Tests
- Opacity
- Contrast Rations, Scatter Coefficients and tint methods
Standards
- Purpose of Standards
- Sources of Standards
- National Standards e.g. BSI
- European Standards EN
- International Standards ISO
- Standard Tests available at PRA
Practical Work
Time will be set aside through out the day to enable delegates to carry out supporting practical work.
For a selection of some of the test methods readily available see
www.pra-world.com/technical/testing.htm
Description
All coatings undergo phase changes during their life history. For a
majority they are liquid during manufacture, storage and application.
Following conversion to a dry film they acquire important, albeit
slowly changing, solid-state properties which enable their protective
and decorative functions.
The course will have a strong practical emphasis enabling delegates
to:-
Understand the principles and consequences of key coating attributes
including
- Wet Film
- Viscosity & Rheology
- Surface Tension
- Dry Film
- Mechanical Properties
- Adhesion
- Permeability
- Opacity
- Gloss & Sheen
Quantify test precision in terms of repeatability and reproducibility.
Understand the concept of 'Test Capability' in relation to control
limits and specification.
Identify test methods and protocols from National, European and
International sources.
Be aware of the correlation and limitations between test results and
practical performance.
Carry out practical application and testing of paints using
established test methods. Subject to prior notice every attempt will
be made to meet delegates specific interests.
Note: The measurement and control of Colour is dealt with as a
separate course and is not covered here. See
Colour Measurement and Colour Control and
Advanced Colour Measurement and Colour Control
Who Should Attend
This course is designed for all those working on the development,
specification, and quality control of coatings where the use and
interpretation of test methods is required.
The course is aimed towards all those requiring a thorough grounding
in paint and surface coatings testing and will be particularly useful
to technical personnel from raw material suppliers, paint
manufacturers and end users. No specific qualifications are required
but a gain maximum benefit a basic knowledge of science would be useful.
Tutors
Mrs Tessa Winter – Head of Testing Services, PRA
Mr Jon Graystone – Principal Research Scientist, PRA
Mr Anthony Buxton – PRA Consultant
Venue
PRA, Hampton, Middlesex, UK
Dates and Times
25–26 November 2008
The workshop starts at 9.30am and finishes at 5.00pm on the first
day and at 4.00pm on the second day.
Course Prices
£680 – PRA Members
£795 – Standard
Prices are per delegate and include VAT, all course materials, tea, coffee
and a light lunch. Prices do not include accommodation.
Registration
To book your place use our
online registration form.
More Information
For further details contact Elisabeth Brown
