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What are airless spray systems? - correct answer -Spray systems used in
marine and industrial projects.
When are airless spray systems the preferred choice? - correct answer -
When speed and efficiency are prioritized over aesthetics.
What are airless spray systems well-suited for? - correct answer -Large
coating areas and achieving thicker DFT in one coat.
What types of coatings are ideal for airless spray systems? - correct
answer -Viscous coatings such as zinc-based coatings and epoxies.
,What are the advantages of airless spray systems? - correct answer -
Higher production, faster application, high transfer efficiency, less
overspray, and atomization of viscous coatings.
What are the disadvantages of airless spray systems? - correct answer -
Fixed spray patterns, less operator control of atomization, and
hazardous spray pressures.
What are the areas of concern for airless poor atomization? - correct
answer -Insufficient pressure
What can cause airless poor atomization? - correct answer -Incorrect or
damaged spray tips
Airless-Assisted spray system are hybrid of airless/conventional systems.
these can spray viscous coating while producing in high-quality finish -
correct answer -and combines the productivity of airless with the
control of conventional. Operates at a lower pressure but results in
higher transfer efficiency and less overspray. One major concern with
these systems are contaminated air.
,What are plural components spray systems? - correct answer -Spray
systems that control mix ratio and minimize waste.
How do plural components spray systems work? - correct answer -They
do not involve pre-mixing and keep components separate.
What is the advantage of using heat in these systems? - correct answer -
Heat reduces viscosity without using thinners.
What are some concerns with plural components spray systems? -
correct answer -Unqualified operators, incorrect component ratios,
incorrect temperatures.
What is curing? - correct answer -The process by which a coating
transforms from a liquid to a solid film.
, What factors affect curing? - correct answer -Environmental conditions,
applied film thickness, and mixing of the coating.
What happens during curing? - correct answer -The coating undergoes a
chemical process to crosslink and reach its optimum hardness and
resistance.
What is drying? - correct answer -The removal of solvent by
evaporation, resulting in a solid product.
What are the limitations of a dried coating? - correct answer -It cannot
withstand minor bumps or other damages.
What is non-convertible coating? - correct answer -Coating that cures
through solvent evaporation with no chemical change.
How does non-convertible coating cure? - correct answer -Through
solvent evaporation with no chemical change.