Brochure Coil Coatings - BASF Coatings

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Coil coating
Non-stop coating
The coil coating process offers a variety of benefits over unit coating. It is carried out as a continuous process,
enabling production to run without interruption. This results, for example, in lower material input for cleaning,
pretreatment and paint application – which not only saves costs, but is also good for the environment.
The non-stop, uniform coil coating process also delivers visually perfect surfaces of consistently high quality.
The classic coil coating process
Entry accumulator
Topcoat
(1) Degreasing,
rinsing, pretreatment
Primer
Pretreatment
Zinc
Metal
(2) Primer application
(3) Topcoat application
(4) Curing oven
Curing oven
Greater efficiency
for The high-end classic coil quality coating process
The Irrespective waterborne of whether BASF pretreatment it is being used primer for steel also or offers
new, aluminium, more efficient the coil coating application process options is essentially for 2-coat the lines.
Since same. the The optimised continuously pretreatment moving metal unit for band the (line pretreatment
primer speed 30–180 enables m/min) pretreatment is cleaned and and priming pretreated to be carried (1),
out coated in a (2 single and 3), stage, cured the in line an capacity oven (4), freed cooled up with in this the way
can aid of be air used or water directly (5) for and another recoiled coat (7). – without the coil
(6) Lamination
(5) Cooling
Cooling
Exit accumulator
accumulator
being The preparatory coated having steps to (1) be consist passed of through cleaning, the degreas- line twice
as ing previously. and chemically pretreating the metal. Various
These coats are options, applied which in succession, substantially depending reduce the on production the later
costs use of for the high-end coated sheet: products, on the include, front these for instance, are the primer
the (2) and application topcoat of (3), a and clear on that the provides reverse a the backcoat, product which with
additional can be applied surface at the properties. same time as the primer or topcoat.
After each coating step the paint film is cured in the oven
(4). Dwell time in the oven is 15-45 seconds. This twosided
coating offers the optimum corrosion protection.
A protective film (6) can also be applied, if required, at the
end of the coating process.
(7) Recoiler