Pre-treat a Substrate for Powder Coating the Smart Way | FMC
                     Pre-treat a Substrate for Powder Coating the Smart 
Way
Cleaning and substrate pre-treatment are crucial steps applied before powder coating in 
Dubai. The treatment provides powder adhesion to the substrate, making the coating 
performance last longer. Know that your substrate is unique and needs a specific pre- 
treatment process. For instance, steel and cast iron require corrosion and rust protection, 
and aluminium materials are stripped off before applying the powder coating to the bare 
metal. Most galvanized metals require duplex coating. But hot galvanized metal needs an 
additional heat-drying step to prevent moisture and air from reaching the substrate 
surface.
It is necessary to take into consideration the final purpose of any substrate. The substrate 
that survives in a marine environment must have more corrosion and rust resistance than 
others. Meanwhile, outdoor applications require protection from weather damage and UV 
rays.
Here are some steps intended for preparing a substrate before the coating process.
The Cleaning Process
Firstly, clean off the dust, grease, dirt, paint, and grime from the substrate. When the 
surface has deposits and residues, it affects the final finishes. There are diverse cleaning 
processes used based on the condition and materials. Some of them are chemical cleaning, 
pressure washing, and abrasive blasting.
Rinse
The rinsing stage can remove the chemical remnants from any surface. You can use tap 
water in areas that contain fewer sulphates or chlorides. It is even better to use deionized 
or osmosis-filtered water to avoid corrosion.
Dry
You can use an oven to air-dry the substrate you choose. Generally, ferrous materials 
undergo flash rusting or atmospheric corrosion. When your substrate is kept dry, you can 
coat it immediately.
 Sealing the substrate
The process of phosphate pre-treatment involves depositing a phosphate layer on the 
substrate. It enhances the corrosion resistance of a substrate. Materials like zinc 
phosphate, iron phosphate, and zirconium phosphate are used on the substrate. 
Consequently, iron phosphate is an affordable choice.
 Re-rinse and dry
After the phosphate pre-treatment, rinse the surface again and let it dry.
 Mask
The whole substrate does not have to get coated. When the entire substrate is coated, 
ensure to mask the products. The masks come in many sizes and shapes. They are 
paper- coated or made using plastic films. It protects the areas from contacting the 
coating throughout the painting process.
After these processes, your substrate is ready for coating. You can contact Al Faizan 
Metal Coating if you want a service for surface coating.
Contact details:
SHAHUL HAMEED
AL FAIZAN METAL PRODUCTS COATING LLC
+971 52-892-5502 / +971 44579286 / +971 52 388 
5934
AL HATHBOOR BUILDING,
WH NO #06, 24TH RAS AL KHOR ST, INDUSTRIAL AREA 
1,
DUBAI, UAE.
[email protected]
www.faizanmetalcoating.com/service/powder-coating/