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Galvanizing body of Nissan Sunny B15

The table below shows whether body of Sunny B15, made from 1993 to 2005, is galvanized and the quality of processing.

Year	Processing	Type	Method	Car body condition
1993	Nodal points	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded IF steels	Result of processing: Bad Car's 31 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions corrosion of body moved into vast stage. These vehicles have undergone repairs to remove rust.

1994	Nodal points	Cold Galvanizing	• application of layer oxides containing zinc particles • introduction of branded TRIP steels (solid-nosed strengthening)	Result of processing: Bad Car's 30 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
1995	Nodal points	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded TRIP steels	Result of processing: Bad Car's 29 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
1996	Nodal points	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded TRIP steels	Result of processing: Bad Car's 28 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
1997	Nodal points	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded TRIP steels	Result of processing: Bad Car's 27 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
1998	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • integrated phase structure CP steel implementation	Result of processing: Bad Car's 26 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
1999	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 25 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
2000	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels • since 2000 the paint coating updated	Result of processing: Bad Car's 24 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
2001	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 23 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
2002	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 22 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
2003	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 21 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars, measures could be applied to eliminate noticeable rusting in bends and joints of body.
2004	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 20 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars rusting is already noticeable in hidden cavities and joints.
2005	Partial	Cold Galvanizing	• application of layer oxides containing zinc particles • use of branded ultra-high-resistant CP steels	Result of processing: Bad Car's 19 years old. Considering the car's age and quality of the zinc processing, under normal operating conditions body corrosion spreads in initial stage. On such cars rusting is already noticeable in hidden cavities and joints.

The information in table is collected from open sources and may contain errors. About sources

Other generations

– b14 1994–1998

– b11 1981–1985

– b12 1986–1991

– n13 1986–1991

– b13 1990–1995

– n14 1990–1995

– y10 1990–2000

–b15 1993–2005

– n16 2000–2009

– b17 2011–2024

– all Models Nissan

Types of processing

If the galvanized car body is damaged, corrosion destroys the zinc, not the steel.

•	Full-body — the car body is fully processed, including hidden and hard-to-reach cavities.
•	Partial — all nodal points and most vulnerable parts of the car body, thresholds, bottom, bottom of the doors are processed.
•	Nodal points processing — includes only processing of welding places, fasteners, stamping and other small parts.

Over years the processing is changed. The younger car the better it's galvanized!

Galvanizing methods

•	Hot-dip Galvanizing — best method (high corrosion resistance, resistance to mechanical influences, partial regeneration).
•	Electroplating — good method (less corrosion resistance that matches perfectly with the paint and primer).
•	Zincrometal — acceptable method (metal with an elastic coating on a zinc base, low anti-corrosion properties, low resistance to mechanical influences).
•	Cold Galvanizing — bad method (anaphoretic soil with an admixture of zinc is not able to resist corrosion).

Steel with a protective coating based on zinc - zincrometal, it contains three components:

1 — zincrometal (zinc solution in epoxy resin) 10-20 microns
2 — dacromet (zinc variance inchromic acid water solution) 2-5 microns
3 — sheet of steel

The presence of zinc particles in ground covering the car body does not affect it's protection and is used by the manufacturer for word "Zinc Coated" in advertising.

Testing

Test results of cars that came off the conveyor with the same damage (cross) on the bottom of front right door are presented below. The tests were carried out in laboratory. Conditions in a chamber with hot salt fog for 40 days correspond to 5 years of normal operation.

Car with Hot-dip Galvanizing
(zinc layer 12 - 15 microns)

Paint / 5 µm

Enamel / 40 µm

Base / 20 µm

Ground / 30 µm

Ground / 20 µm

Zinc coating / 12-15 µm

Steel

Car with Electroplating coated
(zinc layer 5 - 10 microns)

Paint / 5 µm

Base / 10 µm

Paint / 5 µm

Base / 10 µm

Ground / 20 µm

Ground / 5 µm
Zinc coating / 5 µm

Steel

Paint / 20 µm

Base / 10 µm

Paint / 20 µm

Base / 10 µm

Ground / 15 µm

Ground / 10 µm
Zinc coating / 10 µm

Steel

Car with Cold Galvanizing
(zinc layer 10 microns)

Base and Paint / 15 µm

Ground / 35 µm

Ground / 15 µm

Zinc-containing coating / 10 µm

Steel

Car with Zincrometal

Paint / 25 µm

Base / 10 µm

Ground / 25 µm

Ground / 20 µm

Steel

Car without galvanizing

Enamel and Paint / 40 µm

Ground / 25 µm

Ground / 15 µm

Steel

Important information

•	Over the years manufacturers have improved the galvanizing technology of their cars. The younger the car the better it is galvanized!
•	A coating with a thickness of 2 to 10 microns (micrometers) provides excellent protection against the occurrence and spread of corrosion damage.
•	The destruction rate of the active zinc layer in the place of damage to the car body is from 1 to 6 microns per year. Zinc is more actively destroyed at elevated temperatures.
•	If the manufacturer does not add "full-body" to the term "galvanizing", it means that only impact-prone elements have been processed.
•	Pay more attention to the presence of a manufacturer's warranty on the car body than loud phrases about galvanizing from advertising.

Other info

• How the bodies of other Nissan models are treated

• How other makes of car bodies are treated

• Search others cars

• How to make money in car

• Print this table

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