JAZO steel doors and façades are usually hot-dip galvanized in accordance with NEN 1461, with colour being applied in-house immediately after galvanizing and chemical pre-treatment. This surface treatment is executed after completion of all processing on the various components. Hot-dip galvanizing is the most effective method for protecting steel products against corrosion. Hot-dip galvanizing also protects the inside of the sections so that corrosion from the inside is precluded. Usually powder coating or a final paint layer, complete the job as the top coat.

JAZO aluminium products are also chemically pre-treated in-house and then provided with any desired colour through a liquid paint or powder coating system.

Spraying installation:
Dimensions of chemical pre-treatment baths:
- lxwxd 3250x1000x2000 mm
- 12 baths

Enamelling booths:
- Powder oven type G1101 internal dimensions: lxwxh 4000x2900x2850 mm
- Liquid paint oven internal dimensions: lxwxh 5000x1800x2300 mm 


Spraying walls type G0116 (2x):   
- Combined wxh 6000(=2x3000)x2500 mm  


Powder coating installation type G0316 (2x):
- wxh 4000x2500 mm