Register to reply

How do you stop rusting if an iron object is already underwater?

by Mr-Keroro
Tags: iron, object, rusting, stop, underwater
Share this thread:
Mr-Keroro
#1
May1-12, 07:51 AM
P: 1
I have a bit of basic knowledge on rusting and corrosion of iron but im trying to find ways to stop rusting. The problem is what if an object was already submerged in water? Is it still possible to stop it from rusting? I know there are 3 ways of preventing corrosion but im not sure if there are more. There is Galvanisation, Alloying and simply applying a layer of paint over an iron or steel object but will any of these methods work if the object is already underwater(around 1000m below sea level)? If not then, are there any more methods which could possibly slow down if not stop rusting?
Phys.Org News Partner Chemistry news on Phys.org
Water leads to chemical that gunks up biofuels production
Celebrating 100 years of crystallography
Turning waste from rice, parsley and other foods into biodegradable plastic
gulfcoastfella
#2
May1-12, 09:46 AM
PF Gold
gulfcoastfella's Avatar
P: 79
I assume that in your list of preventive measures, you're including sacrificial anodes, like one made of Zinc for example.
DrStupid
#3
May1-12, 10:42 AM
P: 476
Quote Quote by Mr-Keroro View Post
If not then, are there any more methods which could possibly slow down if not stop rusting?
How about active cathodic protection? In seawater you might need an additional protection against microorganisms.

Bignose
#4
May1-12, 08:23 PM
P: 15
How do you stop rusting if an iron object is already underwater?

You could wrap it tightly with something like latex or rubber. Some epoxys might cure underwater... perhaps with a UV light.
Pkruse
#5
May2-12, 07:06 AM
P: 490
Go explore the many coatings designed to be applied under water. I only have experience with the epoxies, but there are others.


Register to reply

Related Discussions
The reaction of rusting iron and the heat produced Biology, Chemistry & Other Homework 1
Work done lifting an object underwater Classical Physics 7
Question about rusting on iron nails. Biology, Chemistry & Other Homework 6
Rusting Of Iron Biology, Chemistry & Other Homework 1
Rusting of Iron Chemistry 2