SIGILLO VERDE® hot-dip galvanising is a metallurgical treatment that protects against rust. It is a technological evolution of traditional hot-dip galvanising carried out according to the new international standards and increasing requirements of environmental sustainability.
SIGILLO VERDE® hot-dip galvanising is an actual alloy between steel and zinc. This results in a very tough surface that is difficult to scratch. It is highly resistant to scrapes and abrasions. It can be handled without special care and precautions.
Where it is scratched, and the steel has been revealed, the cathode effect is activated which limits the formation of rust in the scratched area alone.
Internal and external protection
The process creates a steel-zinc alloy layer on both the outer surfaces and inner surfaces (example: a tube).
None structural alteration
The class 1 zinc coating, according to EU regulation EN 24286, and where allowed, makes it possible to avoid the radiographic testing of welding seams and product components as provided by EN 1090.