Step>

Operation

Product & parameters

0

Preparation

Automatic sandblasting + manual sanding

I

Phospho-Degreasing

Unispray HLW, pH <12, temp.60°C

II

Rinsing

Water, temperature: atmospheric

III

Rinsing 2

Recirculated & demineralised water, conductivity < 25 µs

IV

Passivation

Treatment filmogenic “no rinse”

V

Drying

Forced hot air, time: 5-10’, temp. 160°C

(*)

If requested on cast iron:
Application epoxy zinc primer,
Polymerization (as step VII),
Cooling

VI

Electrostatic powdering

Pure polyester powder

VII

Polymerization in oven

Hot air, time 35’, temp 185°C

VIII

Cooling

IX

Final testing

Step

Operation

Product & parameters

0

Pickling

Removal of oxides from solder bath of acid (No fluoride, no hydrochloric)

I

Rinsing

Natural water

II

Drying

Air

III

Electropolishing
(when requested)

Polished by immersion in a special solution crossed by electric current for cleaning, corrosion resistance and appearance gloss and clean

IV

Passivation

Recovery of chromium oxide film (protective) bath containing nitric acid

V

Rinsing

Natural water

VI

Drying

Air

Step

Pine wood

Exotic wood

1

Protective treatment of impregnation in autoclave

Seasoning with final humidity set to 10-15%

2

Seasoning with final humidity set to 10-15%

Primer with spray insulation
Wet film thickness to be 150-160micron

3

Double layer of spraying with waterbase paint
Final film thickness 100-200micron

Topcoat paint water spray
Wet film thickness to be 200-220micron

4

Storage for air drying

Storage for air drying

5

Visual quality control

Visual quality control