Name |
Description |
accumulator |
device installed in a coil coating line to store metal strip in process and decouple entry, exit and process sections |
adhesion |
adherence of a paint coating to a metal substrate |
backing coat |
paint coat applied to the reverse side of a prepainted metal product, usually of lower specification than the main decorative coat |
BAT |
Best Available Techniques - as required for IPPC compliance |
binder |
polymer which forms the basis of a paint system - also known as resin |
chemcoater |
a small-scale roller coater used to apply a conversion coating |
cladding |
products used for decorative purposes on the outside of walls, can be either structural or purely decorative |
coil |
a coiled strip of metal, either before or after coating, of a constant width and gauge |
coil coating |
a process for coating a continuous strip of flat metal |
conversion coating |
a chemical coating applied to metal strip to facilitate the adhesion of paint |
corrosion |
process by which a metal degrades through oxidation |
curing |
process of converting a wet paint film into a dry film, usually involving chemical change and polymer cross-linking |
DFT |
dry film thickness - thickness of a paint film once fully dried and cured |
domestic appliance |
electrical goods such as refridgerators, washing machines, dryers, cookers etc. |
ecca |
The European Coil Coating Association |
effluent |
waste water, usually contaminated with chemicals or dirt, for example from the pre-treatment section of a coil coating line |
emboss |
texture which can be applied to thick paint coatings before they are fully cured |
finish coat |
the top-most paint coat which gives a decorative and protective surface finish |
Galfan |
variant of HDG with 5% aluminium, 95% zinc metallic coating |
Galvalume |
variant of HDG with a metallic coating consisting of 55% aluminium,a small amount of silicon and the remainder zinc |
gauge |
thickness of a metal substrate |
HDG |
hot dip galvanised steel - a zinc coating is applied by dipping in a bath of molten zinc |
IPPC |
Integrated Polution Prevention and Control Directive (96/61/EC) |
metal strip |
the continuous strip of flat metal coated in the coil coating operation |
no-rinse |
a type of conversion coating, usually applied by roller coater or squeegee rolls, which does not require subsequent rinsing |
pigment |
a constituent of paint which provides colour and sometimes corosion resistance |
plastisol |
paint type based on a PVC resin |
PMT |
peak metal temperature - the maximum temperature achieved by the metal substrate during the drying/curing process in a coil coating line |
polyester |
resin type used as the basis for many paints used in coil coating |
polyurethane |
resin type used as the basis for some paints used in coil coating |
pre-treatment |
strip cleaning and application of a chemical conversion coating prior to painting on a coil coating line |
prepainted metal |
metal coated using the coil coating process |
pretreatment |
strip cleaning and application of a chemical conversion coating prior to painting on a coil coating line |
primer |
paint coat, usually used under a top-coat, which gives good adhesion and corrosion resistance |
PVC |
polyvinyl chloride - a polymer used as a base for some coil coating paints |
PvDF |
polyvinylidene fluoride - resin used as the basis for some paints used in coil coating |
quench |
process of quickly cooling prepainted metal upon exit from the ovens - usually using either forced air or water |
REACH |
The Registration, Evaluation, Authorisation & Restriction of Chemicals Regulation (EC 1907/2006) |
resin |
polymer which forms the basis of a paint system - also known as binder |
reverse cascade |
rinsing technique used on most coil coating lines to minimise water usage |
rheology |
flow properties of liquid paint - important to ensure a smooth paint film |
RoHS |
The Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC) |
roller coater |
device used in coil coating to apply wet paint to a moving metal strip |
roller coating |
process of applying wet paint to a moving metal strip as used on most coil coating lines |
roofing |
products used for the weatherproofing of building roofs |
substrate |
a metal strip used as the basis for prepainted metal |
thermoplastic |
describes paints which do not chemically cross-link, but fuse when cured - can exhibit plastic properties at elevated temperature |
thermoset |
describes paints which chemically cross-link when cured |
top coat |
the top-most paint coat which gives a decorative and protective surface finish |
transport |
describes the use of metal in cars, lorries, busses, trains, ships etc. |
viscosity |
thickness, particularly of liquid paint - important to ensure even application in coil coating |
VOC |
Volatile Organic Compound - solvents used in paints |
WEEE |
Waste Electrical and Electronic Equipment Directive (2002/96/EC) |
WFT |
wet film thickness - thickness of a paint film before drying/curing |