Analytical
Name one of the three key components in the definition of Analytical Chemistry?
What is the standard dry film thickness for Primer in Coil Coatings?
0.2 mil
This electrochemical corrosion reaction is where reduction occurs.
What is the cathodic reaction or cathode.
This type of powder coating resin provides excellent corrosion and chemical resistance, but is not suitable for exposed outdoor finishes?
What is Epoxy
A Tukey-Kramer analysis is a for of this test?
T-Test
The term used for a material response to outdoor stressors like UV light and water.
What is weathering?
What metal is added to 'dope' mercury in UV lamps to shift emissions to longer wavelengths.
The CIE color system “standardizes” the illuminant (idealized light source) and the what?
The human eye using the color matching functions
When requesting help from the Analytical Group you should tell us which instruments to use or explain to us the problem you want to solve?
Explain the problem you want to solve
What are the 2 common methods to curing coil coatings?
Oven Cure and Radiation Cure
This type of corrosion test attempts to achieve improved realism and correlation to outdoor exposure.
What is a cyclic corrosion test.
This "groovy" decade is when thermosetting powder coating technology was first invented.
What are the 1960's?
These may be people, material, processes, or procedures in an experimental design
Inputs
This model explains why loss of coating gloss is not always accompanied by chalking.
What is the contraction model?
What curing method can be used to produce matte coatings without the need for powdered matting agents such as silcas?
What is Excimer?
What software’s “color matching enging” is Sherwin Williams moving over to for both Aurora and Orion (Artemis)?
X-rite's iMatch 10
What instrument would you use to get a “Chemical Fingerprint” of a polymer or raw material?
Fourier Transform Infrared Spectroscopy or FTIR
What is the standard dry film thickness for Topcoats in Coil Coatings?
0.8 mil
This mechanism drives crevice, filiform, and wet stack corrosion.
What is an oxygen concentration cell
A process in powder coating manufacturing, where materials are heated to melt and mixed to homogenize and disperse.
What is extrusion?
What the main effects are aliased with in a resolution 4 design?
3 way interactions
A test that shows good correlation at increased irradiance levels is said to have this.
What is reciprocity?
What is the only Radiation cure method discussed that does not emit UV light?
What is Electron Beam?
Which is the best “spectro type” instrument to use to measure the differences between coating gloss, A Sphere type or an Angle type?
Angle type
What instrument would you use to analyze volatile components in a complex mixture (such as a coating)?
Gas Chromatograph or GC or GC-MS
What is the average line speed for coil coating?
500 ft per minute
Electrochemical Impedance Spectroscopy or EIS measures this response to an alternating voltage.
What is electrical current
A powder resin chemistry that provides full range of gloss finishes, excellent chemical resistance, and UV durability. Its limitation preventing wider use is the minimum temperature threshold to begin the curing process.
What is polyester urethane?
The 7-steps in a design of experiments process
Define Objective
Select Factors
Determine Factor Settings
Plan type of design
Run Experiment
Analyze
Make decisions
Hindered Amine Light Stabilizers (HALS) neutralize these chemical species in a paint film.
What are free radicals?
What unit was used to describe peak irradiance in UV cure?
What is Milliwatts?
Metamerism is a measure (calculation) of what?
how 2 samples appear in color between different illuminants
Why is LCMS not always a good choice for analysis (more than one answer available)?
Acceptable answers include:
How many laundry machines can be produced with a 50 gal- Drum of coil coatings?
2000 laundry machines
This type of corrosion inhibitor acts to slow the anodic and cathodic reactions.
What is a mixed corrosion inhibitor
This physical property of a finished powder coating is critical to both application and appearance properties. It can be categorized by d10 and d90 statistical measurements.
What is particle size (distribution)?
The number of experiments in a full factorial of 4 levels and 3 factors MINUS the number of experiments in a full factorial of 3 factors and 2 levels.
56
This type of light scattering makes the sky blue and richer in UV light
What is Rayleigh scattering?
What is the most common functional group pendant on radiation curable monomers and oligomers that participates in the free-radical reaction?
What is acrylate?
Light interacts with objects in what primary ways, Reflection, Absorption, Transmission, and?
Scatter - ignoring fluorescence and phosphorescence