FAQ
What is Pre-Treatment ?
Before a Powder finish can be successfully applied, the surface of the item
to be painted should be clean and meticulously free from any type of oil or
grease contamination.
• To remove this contamination from the product it is usual for metal
products to be 'Pre-Treated' prior to either a Paint or a Powder coating
being applied.
• The SCS Aqueous Combined Degrease/Phosphate Plants are ideally suited to
'Pre Treating' metal products, with the degrease chemicals removing any oils
and the phosphate chemical providing the chemical reaction to provide an
ideal surface key.
What is Powder Coating?
Powder coating is an alternative, environment friendly method of
applying Paint. Normaly, to apply a 'wet' Paint, solvents are required to
allow the Paint to become a liquid thus allowing it to be applied to the
object to be Painted the solvent also make the paint sticky, causing it to
adhere to the surface. With Powder Coating, only the Paint solids are
sprayed onto the product, in an atomized powder form. The Powder is drawn to
the product and adheres to the product due to an electrostatic charge
applied to the Powder during spraying. The Product, thus covered with the
Powder Paint is then heated (to around 200 degrees Centigrade) in an Oven,
wherein the powder fuses (melts) on to the product and thus forms a smooth,
tough and resilient coating.
What are the benefits of Powder Coating?
High Quality. Because the powder is fused onto the product, it has
excellent scratch resistance properties. It also has a pleasing 'smooth'
appearance and forms a sealed skin around the product thus minimising
corrosion risk.
Recoverable. Unlike wet paint, 'Over spray' powders can be collected
and re-used! When you consider that in any paint spraying system, only
around 50% of the paint for powder) actually lards on the job, then large
savings are clearly possible if the over spray can be re-used.
Simple Automation. Because powder is applied electrostatically, is
fully recoverable and is easily cleaned away, powder is ideally suited to
simple, automatic application thus minimizing labour requirements.
One coat application. For most applications, a single thick powder
application is quite possible. This eliminates the need for primers,
multi-coat-wet painting and for rubbing down between coats.
Environment friendly with no Solvents. It is therefore, safer to use
and more easily complies with all current and proposed environmental
legislation.