Naked Science Forum

General Science => General Science => Topic started by: kdlynn on 01/08/2007 20:07:24

Title: if a car has rust spots, can you stop it from spreading?
Post by: kdlynn on 01/08/2007 20:07:24

... or is that impossible?

Title: if a car has rust spots, can you stop it from spreading?
Post by: Mirage on 01/08/2007 20:40:52

Kadie asked me to add this picture

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fi76.photobucket.com%2Falbums%2Fj30%2FSimply_Sid%2Frust.jpg&hash=0dc822b0e04804495b09ab5aad7f8d3f)

Title: if a car has rust spots, can you stop it from spreading?
Post by: kdlynn on 01/08/2007 20:43:44

thank you, dan. that's the car i'm sitting next to. my car has a tiny rust spot... but how can i prevent that from happening to my car?

Title: if a car has rust spots, can you stop it from spreading?
Post by: elegantlywasted on 02/08/2007 03:38:34

I was told that you should paint (with auto paint) the rust spots. This wont stop it from spreading but it slows it down alot.

Title: if a car has rust spots, can you stop it from spreading?
Post by: dentstudent on 02/08/2007 07:13:14

Using automotive products, there are some that reuce the spread of rust. One I remember was called ....er, I'll send you a pm. The only sure-fire way is to completely remove the rusty bit and have some new metal/fibre glass replacement.

Title: if a car has rust spots, can you stop it from spreading?
Post by: eric l on 02/08/2007 12:40:10

The picture clearly shows that there is already rust formation beneath the paint too :  the film of paint is pushed up by it. 
To start, you will have to remove the rust either chemically or mechanically (e.g. sanding paper and a lot of elbow grease).  With the sanding paper, you have to go at least 1 cm beyond the blister where the paint is pushed up by the rust.
Then a good primer (anti-rust) and finally the lacquer.

Title: if a car has rust spots, can you stop it from spreading?
Post by: kdlynn on 02/08/2007 14:32:25

well i'm glad i don't own that car then!