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DAILY 4x4 ‒ GUIDELINES FOR BODYBUILDERS
CHASSIS INTERVENTIONS
2.3 RUST AND PAINT PROTECTION
– Printed 692.68.999 – 3 Ed. - Base 08-2020
(1)
This operation must be performed when dealing with cutting burr, oxidation, weld slag, or laser-cut surfaces.
(2)
Two-layer bodywork cycle.
(3)
Three-layer bodywork cycle.
(4)
In alternative to single and bi-component paint only for particular bodywork (windscreen wipers, rear-view mirrors, etc.).
(5)
Only rear/front axles.
(6)
Excluding parts that cannot be immersed in pre-treatment baths or undergo painting because of compromised functionality (e.g.: mech-
anical parts).
(7)
Only if the colour is defined in a drawing according to I.C.
(8)
For fuel tanks in ferrous or pre-coated sheets.
(9)
Only parts to mount on the engine.
(*)
Alternative products and cycles for the same phase under the condition of comparability with the part to treat.
(**)
Specific phosphates must be used for zinc coated or aluminium sheets.
2.3.2 Added or modified parts
All vehicle parts (body, chassis, equipment, etc.) that are add-ons or subjected to modifications must be protected against oxidation
and corrosion.
Areas free of protection on ferrous materials are not accepted.
Tables 2.7 and 2.8 indicate the minimal treatment that modified or added components must receive when it is not possible to have
protection that is similar to that of original components. Different treatment is allowed if it ensures similar oxidation and corrosion
protection.
Do not used powder varnish directly after degreasing has been performed.
Lightweight alloy, copper and brass parts must be protected.
Table 2.7 - Painted modified parts or add-ons
Cycle phase description
Class
A - B -D
(1)
Mechanical surface cleaning
(including elimination of burrs/oxidation and cleaning of cut parts)
Brushing/sandpapering/sand blasting
Pre-treatment Degreasing
Rust preventer
Bi-component (30-40 μm)
(2)
Varnish
Bi-component (30-40 μm)
(3)
(1)
Modifications on rear axles, from axles and engine (classes B1 and C) not allowed
(2)
Preferably epoxy
(3)
Preferably polyurethane
Table 2.8 - Unpainted or aluminium modified parts or add-ons
Type of protection
Class
A - B
(1)
D
Stainless steel
yes
–
Geomet –
Zinc coating
(1)
– yes
(1)
Free from hexavalent chromium
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